{"id":36103,"date":"2022-09-28T08:53:03","date_gmt":"2022-09-28T08:53:03","guid":{"rendered":"https:\/\/www.infosim.net\/stablenet\/?p=36103"},"modified":"2025-07-22T11:20:05","modified_gmt":"2025-07-22T11:20:05","slug":"the-similarities-and-differences-between-snmp-and-telemetry","status":"publish","type":"post","link":"https:\/\/www.infosim.net\/stablenet\/blog\/the-similarities-and-differences-between-snmp-and-telemetry\/","title":{"rendered":"The similarities and differences between SNMP and Telemetry"},"content":{"rendered":"\n[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.16&#8243; background_color=&#8221;#002846&#8243; background_color_gradient_direction=&#8221;60deg&#8221; global_colors_info=&#8221;{}&#8221; global_module=&#8221;41229&#8243; theme_builder_area=&#8221;post_content&#8221;][et_pb_row _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_blurb image=&#8221;https:\/\/www.infosim.net\/stablenet\/wp-content\/uploads\/5\/2021\/03\/Blog-1.png&#8221; icon_placement=&#8221;left&#8221; image_icon_width=&#8221;67%&#8221; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; body_text_color=&#8221;#FFFFFF&#8221; body_font_size=&#8221;18px&#8221; custom_css_blurb_image=&#8221;width:100px&#8221; custom_css_blurb_content=&#8221;max-width: none!important;&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;]<strong style=\"font-size: 160%;\">StableNet<sup style=\"font-size: 50%;\">\u00ae<\/sup>\u00a0Blog\n<\/strong>Regular posts on all things StableNet<sup style=\"font-size: 50%;\">\u00ae<\/sup> related from a sales, techie, or marketing perspective[\/et_pb_blurb][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#D6D6D6&#8243; custom_padding=&#8221;||2px|||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row column_structure=&#8221;1_2,1_4,1_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_margin=&#8221;||0px||false|false&#8221; custom_padding=&#8221;|25px|2px|25px|false|false&#8221; border_width_all=&#8221;4px&#8221; border_color_all=&#8221;#002846&#8243; border_width_top=&#8221;4px&#8221; border_width_right=&#8221;4px&#8221; border_width_bottom=&#8221;0px&#8221; border_width_left=&#8221;4px&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_2&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_blurb image=&#8221;https:\/\/www.infosim.net\/stablenet\/wp-content\/uploads\/5\/2021\/03\/Blog-Outside-Contributions-.png&#8221; icon_placement=&#8221;left&#8221; _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; body_text_color=&#8221;gcid-e048e617-59ef-4759-a91a-4c1c9dfb411e&#8221; background_color=&#8221;RGBA(0,0,0,0)&#8221; global_colors_info=&#8221;{%22gcid-e048e617-59ef-4759-a91a-4c1c9dfb411e%22:%91%22body_text_color%22%93}&#8221;]<b>Outside Contribution\n<\/b>[\/et_pb_blurb][\/et_pb_column][et_pb_column type=&#8221;1_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_column][et_pb_column type=&#8221;1_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;10px|25px|3px|25px|false|false&#8221; border_color_all=&#8221;#002846&#8243; border_color_top=&#8221;#dd8430&#8243; border_width_right=&#8221;4px&#8221; border_width_left=&#8221;4px&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; header_text_align=&#8221;left&#8221; header_2_line_height=&#8221;1.3em&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;0px|||0px|false|false&#8221; global_colors_info=&#8221;{}&#8221;]<h1><strong>Have you ever wondered?: The similarities and differences between SNMP and Telemetry.<\/strong><\/h1>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_margin=&#8221;||0px||false|false&#8221; custom_padding=&#8221;|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;1px|||||&#8221; global_colors_info=&#8221;{}&#8221;]<p>September 28<sup style=\"font-size: 50%;\">th<\/sup> 2022, W\u00fcrzburg<\/p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_margin=&#8221;||0px||false|false&#8221; custom_padding=&#8221;|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|25px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<p>For StableNet<sup style=\"font-size: 50%;\">\u00ae<\/sup>, we typically tend to look at telemetry as yet another means by which device attributes and states can be consolidated in an over-arching network management platform. Whether telemetry will eventually be seen as a paradigmatic shift that replaces SNMP has yet to be seen and is too far down the road to even hazard a guess at this point. Instead, we see a successful multi-technology network and service management solution as needing to integrate both standards (although one might argue that there is no standard for telemetry as of yet).<\/p>\n<p>To give ourselves and our readers a deeper understanding, we had an external, IT specialist sit down and give us an overview on his take of just where the differences and similarities lie. We hope you enjoy.<\/p>\n\n<p>&#8211; Dr. David Toumajian, Director of Marketing<\/p>[\/et_pb_text][et_pb_divider color=&#8221;#000000&#8243; divider_style=&#8221;dotted&#8221; divider_position=&#8221;bottom&#8221; _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_divider][\/et_pb_column][\/et_pb_row][et_pb_row module_id=&#8221;1&#8243; _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|true&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<h2>What is Simple Network Management Protocol (SNMP)?<\/h2>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|true&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]Simple Network Management Protocol (SNMP) is an application layer protocol that makes it possible to exchange data between network devices.\n\nSNMP is not a product but a set of rules. It is defined by the Internet Architecture Council and is part of the TCP\/IP package. SNMP is managed and maintained by the Internet Engineering Task Force (IETF).\n\nThe protocol allows system administrators to monitor and control network performance and change the configuration of connected devices. SNMP is used in networks of any size: the larger the network, the more the advantages of the protocol are revealed. \n\nIt allows you to view, monitor, and manage nodes through a single interface with batch commands and automatic notification features.\nThus, SNMP relieves the administrator of the need to enter commands manually. A total of three versions were developed and deployed. All are still in use, and the second one, SNMPv2c, has become the most common.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_id=&#8221;1&#8243; _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<h2>The SNMP architecture<\/h2>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<p>The components that make up the SNMP architecture are:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>a network management station including a network manager;<\/li>\n<li>agents;<\/li>\n<li>master agents;<\/li>\n<li>Managed components.<\/li>\n<\/ul>\n<\/li>\n<\/ul>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_id=&#8221;1&#8243; _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<h3>Network Management Station &#8211; NMS<\/h3>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]Network Management Station (NMS) remotely monitors managed devices, receives data collected by master agents, monitors performance, and presents the information in graphical form. The built-in NMS manager is responsible for communicating with agents.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_id=&#8221;1&#8243; _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<h3>Agents<\/h3>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<b>Master Agent:<\/b> It is a program that links network managers and subagents. The master agent analyzes the requests of the NMS network manager and forwards them to the subagents, collects and forms responses from the subagents, and sends them to the manager. The master agent notifies the manager if the request is invalid or the requested information is not available.\n\n<b>Subagent:<\/b> It is a program supplied by the vendor along with the network device. The subagent forwards the collected information to the master agent. Each managed device has a corresponding subagent.\n\n<b>Managed Component:<\/b> It is a network-connected device or software with an embedded subagent. \nSuch devices include not only routers, switches, and servers. But also IP video cameras, MFPs, and IP phones. Software with subagents also includes anti-virus programs, backup systems, and software for UPS systems.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_id=&#8221;1&#8243; _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<h3>Management Information Base &#8211; MIB<\/h3>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]MIB is a hierarchical database of device information. Each type of device has its own MIB table: the printer contains information about the status of cartridges, and the switch contains traffic information. Thanks to the MIB, the manager knows what information it can request from the device agent.[\/et_pb_text][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<h3>Object identifier &#8211; OID<\/h3>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]Each object in the MIB has its own unique ID &#8211; OID, which is presented in a numeric format and has a hierarchical structure. OID is the numeric equivalent of the file path. It assigns values to every table in the MIB, to every column in the table, and to every value in the column.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_id=&#8221;2&#8243; _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<h2>Theory and logic of the SNMP protocol<\/h2>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_id=&#8221;2&#8243; _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<h3>Purpose<\/h3>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]Initially, the protocol was supposed to provide system administrators with a tool for managing the Internet. However, the flexible architecture of SNMP made it possible to monitor and manage all network devices from a single console. It was the reason for the spread of SNMP.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_id=&#8221;2&#8243; _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<h3>Protocol Data Unit (PDU)<\/h3>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]Managers and agents communicate via the UDP protocol. TCP, IPX, or MAC layer protocol can also be used instead. Data exchange is based on the PDU.\n\nThere are seven PDUs in SNMP:\n<ul>\n\t<li style=\"list-style-type: none;\">\n<ul>\n\t<li>GET &#8211; request the NMS manager to receive data from the device.<\/li>\n\t<li>GETNEXT is a request similar to<\/li>\n\t<li>GET. The only difference is that the manager requests data that is at the next level of the OID hierarchy in the MIB.<\/li>\n\t<li>SET &#8211; with this request, the manager changes or assigns new data to the device.<\/li>\n\t<li>RESPONSE &#8211; a message from the agent sent in response to a request for data.<\/li>\n\t<li>TRAP &#8211; notification of an event or error that has occurred. The agent sends it immediately after the event occurs without waiting for the manager&#8217;s request. The manager does not acknowledge receipt of the message in any way, which can be a problem.<\/li>\n\t<li>GETBULK &#8211; a request to the agent to retrieve an array of data from the device. It is an improved version of the GETNEXT query.<\/li>\n\t<li>INFORM &#8211; a message similar to TRAP, but with an acknowledgment of receipt.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\nINFORM and GETBULK are only available in the second and third versions of the SNMP protocol.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_id=&#8221;2&#8243; _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<h3>SNMP Protocol Versions<\/h3>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<b>SNMPv1:<\/b> The first version of the protocol appeared in the 1980s. Easy to set up &#8211; only the community string is required. SNMPv1 is still widely used today.\n\n<b>SNMPv2c:<\/b> The second version of the SNMP protocol appeared in 1993. The developers have added a new GetBulk request and an Inform hook, as well as improved security. This version has two ways to communicate with devices that support SNMPv1: a bilingual network management system and proxy agents. Proxy agents act as master agents, and in a bilingual management system, the manager determines which version of SNMP an agent supports and communicates with it via SNMPv1 or SNMPv2c.\n\n<b>SNMPv3:<\/b> The third version was released in 1998. The developers added cryptographic protection to SNMP and facilitated remote configuration and administration of objects. It was achieved by defining a set of standardized management objects called Remote Network Monitoring MIBs, the RMON MIB.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_class=&#8221;3&#8243; _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text module_id=&#8221;3&#8243; _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;||0px|||&#8221; global_colors_info=&#8221;{}&#8221;]<h2>Issues with conventional surveillance technology<\/h2>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<p>In network operation, monitoring technology is important for fault detection and performance analysis.<\/p>\n<p>Conventional networks widely use a technology called SNMP.<\/p>\n<p>SNMP is a UDP-based network monitoring technology. The data model is defined in a database called MIB (Management Information Base), and there are standard MIBs common to all vendors and unique extension MIBs.<\/p>\n<p>The SNMP information acquirer is called SNMP Manager, and the information issuer is called SNMP Agent. As information acquisition methods, there are Polling, in which SNMP Manager acquires information on a request basis, and Trap, in which SNMP Agent sends information on a trigger basis.<\/p>\n<p>The following three points can be cited as problems with conventional SNMP.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>High-load processing structure<\/li>\n<li>The complexity of management in a multi-vendor environment<\/li>\n<li>Limitation of scalability in N-to-N configuration<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Network monitoring requires the acquisition of traffic volume and device load information (memory, CPU, temperature, etc.). However, since SNMP polling is request-based, narrowing the interval to obtain high-definition information will increase the CPU load and processing time.<\/p>\n<p>With SNMP, there is a lack of standard MIBs. Therefore, in order to obtain the same information in a multi-vendor environment, it is necessary to specify the extended MIB OID (Object ID) unique to each model which increases management costs.<\/p>\n<p>In summary, SNMP has the following three problems.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Decrease in obtainable information accuracy and loss of real-time performance due to high-load protocol structure<\/li>\n<li>The complexity of management in a multi-vendor environment due to the lack of standard MIBs<\/li>\n<li>Scale issues when constructing an N-to-N configuration<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Telemetry technology is expected as a monitoring technology to solve these problems.<\/p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_id=&#8221;4&#8243; _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<h2>What is Telemetry?<\/h2>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<p>Telemetry is a next-generation network monitoring technology, and it is being studied and implemented by various companies and standardized by OpenConfig.<\/p>\n<p>Telemetry is generally designed to have three characteristics:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Acquisition of high-definition, real-time information by low-load protocol design compared to SNMP<\/li>\n<li>Vendor-free information acquisition by OpenConfig<\/li>\n<li>High scalability due to easy-to-deploy Pub\/Sub model design<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Based on these characteristics, it is expected to be a technology that can solve the problems of SNMP mentioned in the previous section.<\/p>\n<p>Telemetry employs a data transmission\/reception model called the Pub\/Sub model.<\/p>\n<p>The Pub\/Sub model consists of the following three elements.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Publisher: Publisher (sender). publish a message<\/li>\n<li>Broker: an intermediary. mediate messages<\/li>\n<li>Subscriber: Subscriber (recipient). Get and use messages<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Advantages of the Pub\/Sub model include: (1) message senders and receivers do not need to recognize each other directly and are asynchronous and loosely coupled; One of the reasons is its large scale. Information is managed by an attribute called Topic, and Publishers\/Subscribers send\/receive data by specifying the Topic.<\/p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_id=&#8221;5&#8243; _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text module_id=&#8221;4&#8243; _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;||0px|||&#8221; global_colors_info=&#8221;{}&#8221;]<h3>Publisher<\/h3>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<p>A Publisher is the publisher of a message and consists of three elements:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Network equipment to be monitored<\/li>\n<li>Transport part that connects the monitored device and the Collector<\/li>\n<li>Collector to receive data from Publisher.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>As concepts related to monitored devices, I will explain the information model and the classification of connection methods.<\/p>\n<p>There are mainly two types of device information models: OpenConfig and vendor native. OpenConfig is a network configuration model that is being standardized assuming vendor-neutral use and is defined according to YANG. On the other hand, vendor-native is an information model specific to each product. It generally has better support than OpenConfig and tends to have a wealth of information that can be handled.<\/p>\n<p>The information issued by the device is specified in advance by a data path called Sensor-Path. And it issues messages at predetermined intervals and sends them to the Collector.<\/p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_id=&#8221;6&#8243; _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<h3>Broker<\/h3>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]A Broker is an intermediary for messages and corresponds to Message Queue.\n\nMessage Queue is an element that relays messages, and the main implementations include Apache Kafka and Cloud Pub\/Sub\/SQS in Public Cloud. Common implementations often have mechanisms for redundancy, such as clustering and mirroring.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;||8px|||&#8221; global_colors_info=&#8221;{}&#8221;]<h3>Subscriber<\/h3>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]Subscribers are recipients of messages and elements that receive and consume data. The subscriber has various functions and pipelines for each use case. [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<h2>Background of Telemetry<\/h2>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<p>Telemetry is an old term coined from Tele = Remote and Metry = Measure. In that sense, SNMP and xFlow can also be considered a type of Telemetry. But it may be easier to understand if you understand &#8220;Telemetry&#8221; introduced in this column as the next-generation version of SNMP.<\/p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<h3>SNMP challenges<\/h3>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]SNMP has long been used to visualize the state of networks.\n\nWhen legacy SNMP is applied to a Hyper-Scale environment, there are performance issues, narrowing the polling interval (because it requires a lot of resources on the network device side), and when multiple Pollers exist, the processing on the device side becomes stuck. It leads to a loss of real-time performance. In addition, there are limitations in terms of flexibility, and it is not possible to apply new data models (YANG, etc.) that are used in various applications and are becoming mainstream in recent years. It is difficult to say that SNMP is suitable for current and future network operations, as it does not support new transport protocols such as SNMP.\n\nIn the case of SNMP, the exchange of statistical information via OID is request-based, so the device side is burdened with request processing. Each time there is a request, the device retrieves the information in the same lexicographical order and processes the response. In terms of SNMP, SNMP is equivalent to telephony (answers calls if they are made, calls are not completed, and no new calls are accepted and put on hold).\n\nOn the other hand, Telemetry differs from SNMP in that it is not based on request\/response format but on a Subscription (subscription declaration) basis. For a particular statistic, the device distributes the statistic to subscribers on a regular basis rather than calling multiple subscribers when they need the information.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<h3>Telemetry Explanation<\/h3>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<p>Against this background, a concept called Telemetry was born as a new means to replace SNMP. Google, the center of development, lists the following as Telemetry&#8217;s Framework Requirements:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Network device sends Data to Collector in stream format (Push model)<\/li>\n<li>Publish\/Subscribe model, select arbitrary Data, and declare Subscribe<\/li>\n<li>Data model is Vendor neutral or Open-config<\/li>\n<li>Technology that can withstand data increase in the next 10 years<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Telemetry Data type<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Periodic transmission type: \u201cExample\u201d Send all interface information every 10 seconds<\/li>\n<li>Event trigger type: \u201cExample &#8221; When a specific LSP goes down, the status is sent.<\/li>\n<li>Operator request type: [Example] Any request on the operator&#8217;s side is used as a trigger to send<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Now, let&#8217;s take a look at some of the technical elements that are important in meeting the above requirements.<\/p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<h3>gRPC (Google Remote Procedure Call)<\/h3>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<p>gRPC is a multi-platform RPC Framework with the following features.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Load balance, application-level flow control, call canceling<\/li>\n<li>Supports bi-directional streams and server push<\/li>\n<li>Multi-platform (supports multiple languages)<\/li>\n<li>Stream connection multiplexing<\/li>\n<li>Open source<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>From these functions, it is possible to use HTTP\/2 as if it were a transport layer that operates independently (by using gRPC), and on top of that, information can be obtained by RPC (Remote Procedure Call) increase. In addition, since it was originally a protocol aimed at improving the efficiency of communication between components in a distributed computing environment, weight reduction as a protocol and rapid response is emphasized.<\/p>\n<p>* These days, when Micro-Service is attracting attention, rapid communication between components is very important.<\/p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<h3>GPB (Google Protocol Buffers)<\/h3>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]GPB is a mechanism for serializing (encoding) structured data developed by Google (equivalent to ASN.1 BER in SNMP). It can operate even with ASICs that are good at simple processing (of course, serialization\/deserialization by CPU is also possible), and the processing load is reduced compared to ASN.1 BER adopted by SNMP. It is language-independent, platform-independent, and highly extensible. And compared to XML, it has a smaller data size, is faster, and is simpler.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<h3>OpenConfig<\/h3>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]OpenConfig is an open-source project composed of multiple network operators (Apple, AT&#038;T, BT, Comcast, Cox, Facebook, Google, Microsoft, Verizon, Yahoo, etc.) The activity goal is to formulate a common data model for &#8220;Configuration&#8221; and &#8220;Operational State.&#8221; A common data model based on OpenConfig enables unified settings and operations even for a multi-vendor network. In terms of telemetry, you can use the data model defined by this OpenConfig when acquiring the device status (Interface Counter, etc.).[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<h2>Final comparison of Telemetry and SNMP <\/h2>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16.1&#8243; background_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221;]<p>Now, let&#8217;s take a last look at the differences between Telemetry and SNMP.<\/p>\n<p>SNMP uses the polling method, which requests information each time information is acquired, but Telemetry uses the subscription method. Regarding transport, SNMP is a UDP-only implementation, but Telemetry uses gRPC in addition to UDP\/TCP and uses a flow-controlled transport layer. SNMP uses ASN.1 BER for encoding, but Telemetry uses GPB, which is much lighter. In addition, by adopting OpenConfig for the data model, it is possible to obtain various information from the device with a common data model that does not depend on the vendor. Performance-wise, there are also noticeable differences between SNMP and Telemetry.<\/p>[\/et_pb_text][et_pb_divider divider_style=&#8221;dotted&#8221; divider_position=&#8221;center&#8221; _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_divider][\/et_pb_column][\/et_pb_row][et_pb_row disabled_on=&#8221;off|off|off&#8221; _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_cta title=&#8221;Sign up for a live demo of our Network &#038; Service Management Solution&#8221; button_url=&#8221;https:\/\/www.infosim.net\/stablenet\/demo-request\/&#8221; button_text=&#8221;Request a live demo now&#8221; _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;gcid-0ec571bb-ff0d-462f-a031-586706c32b26&#8243; custom_button=&#8221;on&#8221; button_text_color=&#8221;#FFFFFF&#8221; button_bg_color=&#8221;gcid-895bdb83-7a67-4d0b-94c0-4dce798c0d42&#8243; global_colors_info=&#8221;{%22gcid-895bdb83-7a67-4d0b-94c0-4dce798c0d42%22:%91%22button_bg_color%22%93,%22gcid-e048e617-59ef-4759-a91a-4c1c9dfb411e%22:%91%22button_bg_color__hover%22%93,%22gcid-0ec571bb-ff0d-462f-a031-586706c32b26%22:%91%22background_color%22%93}&#8221; button_bg_color__hover_enabled=&#8221;on|hover&#8221; button_bg_color__hover=&#8221;#e9ab33&#8243; button_bg_enable_color__hover=&#8221;on&#8221;]<p>&nbsp;<\/p>\n<p>Feel free to sign up for a live demo of StableNet<sup style=\"font-size: 50%;\">\u00ae<\/sup>. If you are looking for an efficient and secure monitoring platform that can also manage your multi-vendor and -technology network infrastructure through a single GUI, StableNet<sup style=\"font-size: 50%;\">\u00ae<\/sup> may be the right choice for you.<\/p>[\/et_pb_cta][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|0px|25px|false|false&#8221; border_width_right=&#8221;4px&#8221; border_color_right=&#8221;#002846&#8243; border_width_bottom=&#8221;4px&#8221; border_width_left=&#8221;4px&#8221; border_color_left=&#8221;#002846&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.16&#8243; 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management.<\/p>\n","protected":false},"author":17,"featured_media":31155,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"27470,20479,28888,23258,23381,27231","_relevanssi_noindex_reason":"","footnotes":""},"categories":[1900],"tags":[],"class_list":["post-36103","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.3 (Yoast SEO v26.3) - 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