% Sham-Link Errors When Attempting to Enable SNMP Traps on Cisco Switch in Exadata / Engineered Systems.

Asset ID:	1-71-1999199.1
Update Date:	2018-01-23
Keywords:

Solution Type Technical Instruction Sure

Solution 1999199.1 : % Sham-Link Errors When Attempting to Enable SNMP Traps on Cisco Switch in Exadata / Engineered Systems.

Applies to:

Exadata Database Machine X2-2 Hardware - Version All Versions and later
Cisco Catalyst 4948 Switch - Version All Versions and later
Information in this document applies to any platform.

Goal

I am trying to configure SNMP traps on Cisco Switch.

When I try to enable traps I get the following error:

atl1sw-adm0.ods#conf t
atl1sw-adm0.ods(config)#snmp-server community public
atl1sw-adm0.ods(config)#snmp-server host 172.16.186.227 public
atl1sw-adm0.ods(config)#snmp-server enable traps
% Cannot enable both sham-link state-change interface traps.
% New sham link interface trap not enabled.

Please advice.

Solution

Researching this I find the following:
https://supportforums.cisco.com/discussion/10583281/snmp

The error does not mean that traps have not been enabled, but says traps about ospf sham-link changes will not be sent.

In order to send them you will need the full commands

snmp-server enable traps ospf cisco-specific errors config-error

snmp-server enable traps ospf cisco-specific errors shamlink

Have a look here

http://www.cisco.com/en/US/docs/ios/iproute/configuration/guide/ospf_sham_mib_ps6350_TSD_Products_Configuration_Guide_Chapter.html

SNMP traps are still enabled, OSPF Sham-Link traps are not.
For the purpose of platinum implementation, there is a need for sham-link.

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