Dell Networking OS9: How to view the MAC Address Table using SNMP

Summary: How to view MAC Address Table entries using Simple Network Management Protocol (SNMP) from Dell Networking OS9 Switches.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
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Symptoms

By default, an snmpwalk of the dot1dTpFdbTable of a Dell Networking OS9 switch does not return the MAC address table (Forwarding Database) of the switch.
 

Note: The dot1dTpFdbTable is contained in the dot1dBridge MIB.

Here is a link for the dot1dBridge MIB tree example in detail which is a common tree:
https://www.cs.vsb.cz/grygarek/TPS/projekty/0405Z/SNMP/mib/dot1dbridge.htmlThis hyperlink is taking you to a website outside of Dell Technologies.


Steps:

In order to allow the Dell OS9 SNMP agent to respond to snmpget for the dot1dTpFdbTable, a hidden CLI command must be used.

  1. Log in to the CLI of a Dell Force10 switch.
  2. Type in "enable", press return and enter the privileged-exec enable password.
  3. Enter the switch configuration mode by typing "configure".
  4. Type "enable-dot1d-mibwalk", press enter.
  5. Exit out of the configuration.
  6. Save the configuration by typing "write", press enter.

The below example shows the commands executed from the above steps:

FTOS# configure
FTOS(conf)# enable-dot1d-mibwalk
FTOS(conf)# exit
FTOS# write

 

The following shows the results from a mibwalk on the dot1dTpFdbTable
This example was created using iReasoning MIB Browser.

SLN295195_en_US__1SNMP pic

Cause

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Resolution

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Affected Products

Force10 S60-44T, PowerEdge M IO Aggregator
Article Properties
Article Number: 000140453
Article Type: Solution
Last Modified: 19 May 2025
Version:  4
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