Differences

This shows you the differences between two versions of the page.

--- networking:snmp:about_snmp [2020/05/12 16:34] – [Typical SNMP communication] peter
+++ networking:snmp:about_snmp [2020/07/15 09:30] (current) – external edit 127.0.0.1
@@ Line 45: / Line 45: @@
 ===== SNMP Agent =====
-The agent is a program that is packaged within the network element. Enabling the agent allows it to collect the management information database from the device locally and makes it available to the SNMP manager, when it is queried for.
+The agent is a program that is packaged within the network element.
+Enabling the agent allows it to collect the management information database from the device locally and makes it available to the SNMP manager, when it is queried for.
 These agents could be standard (e.g. Net-SNMP) or specific to a vendor (e.g. HP insight agent)
@@ Line 55: / Line 57: @@
   * Signals an event to the manager.
   * Acts as a proxy for some non–SNMP manageable network node.
+{{:networking:snmp:snmp_-_agent.png?600|}}
 ----
@@ Line 93: / Line 97: @@
 A typical object ID will be a dotted list of integers. For example, the OID in [[https://tools.ietf.org/html/rfc1213|RFC 1213]] for "sysDescr" is .1.3.6.1.2.1.1.1
+{{:networking:snmp:mib_tree.jpeg?600|}}
 ----
@@ Line 115: / Line 121: @@
 The following diagram will illustrate the four–layer model developed by Department of Defense (DoD).
+{{:networking:snmp:snmp_-_layers.png?600|}}
+__GET⁄ GET NEXT⁄ GET BULK⁄ SET__
+{{:networking:snmp:snmp_-_get_-_response.gif?600|}}
+__TRAP__
+{{:networking:snmp:snmp_-_trap.gif?600|}}
+__INFORM__
+{{:networking:snmp:snmp_-_inform_-_acknowledgment.gif?600|}}
 By default SNMP uses port 161 and TRAP⁄ INFORM uses port 162 for communication.