ERSPAN Question

[twill0097]

The command 

monitor erspan origin ip-address x.x.x.x global is not working on a cisco nexus 7700 firmware 8.3.
Has anyone had an issue like this and what did you do to resolve the issue?

[balaji.bandi]

Can you post more information here :

# show monitor session {all | session-number | range session-range} [brief]

You can configure an ERSPAN session on the local device only. By default, ERSPAN sessions are created in the shut state.

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus7000/sw/system-management/guide/b_Cisco_Nexus_7000_Series_NX-OS_System_Management_Configuration_Guide-RI/configuring_erspan.html#concept_B33B4BA171834C8D81D288E388B5091F

[ashishr]

Hi @twill0097 

Can you elaborate the problem? Is the CLI not working or the configuration is not taking affect.

If the CLI is not working try reconfiguring step-by-step.

https://www.cisco.com/c/en/us/support/docs/switches/nexus-7000-series-switches/113480-erspan-nexus-7k-00.html

Here is an example from the guide-

!--- Configures an ERSPAN source session.

switch_1(config)#monitor session 48 type erspan-source
!--- Configure the sources and traffic direction.

switch_1(config-erspan-src)#source interface Ethernet2/10 both
!--- Configure the destination IP address in the ERSPAN session.

switch_1(config-erspan-src)#destination ip 10.11.11.3
!--- Configure the ERSPAN ID.

switch_1(config-erspan-src)#erspan-id 902
!--- Configure the VRF.

switch_1(config-erspan-src)#vrf default
!--- Enable the ERSPAN source session (by default the session is !--- in shutdown state).

switch_1(config-erspan-src)#no shut
switch_1(config-erspan-src)#exit

!--- Configure the ERSPAN global origin IP address.

switch_1(config)#monitor erspan origin ip-address 10.254.254.21 global

Thanks,

Ashish