Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

SPAN or RSPAN Configuration for intermediate Switch.

Hi

I am having three switches. My Sniffer is connected with my Core Switche port 11.

I am having 1 core SW, 2 Access SW.

CoreSW --------------Trunk--------------->AccessSw1-----------------Trunk-------------------------AccessSw2.

I am trying to configure Monitor session between AccessSW2 and Core SW.

my configuration ar Core SW

monitor session 1 destination interface Fa0/11
monitor session 1 source remote vlan 901

At AssessSw2

monitor session 1 source interface Fa0/1 - 22

monitor session 1 destination remote vlan 901

these configurations work fine if I ommit AccessSw1.

So what Configuration I need at AccessSW1 to communicate fine. Please help me on this..

5 REPLIES
Hall of Fame Super Blue

Re: SPAN or RSPAN Configuration for intermediate Switch.

Have you created vlan 901 on access switch 1 ?

Jon

Re: SPAN or RSPAN Configuration for intermediate Switch.

no . I did not creat any Vlan 901. If I need to creat then should it be remote Vlan or not?

Do I need to add monitor session command there?

Hall of Fame Super Blue

Re: SPAN or RSPAN Configuration for intermediate Switch.

sultan.arif wrote:

no . I did not creat any Vlan 901. If I need to creat then should it be remote Vlan or not?

Do I need to add monitor session command there?

You need vlan 901 on all intermediate switches so just add the vlan to the vlan database ie.

access1(config)# vlan 901 name v901

you don't need to configure any monitor commands on the intermediate switch.

Jon

Re: SPAN or RSPAN Configuration for intermediate Switch.

bumping up the old post, however - do we need to specify a vlan 901 as remote-vlan  on SW2?

Or just creating vlan901 should be enough?

What would happen if we add "remote-vlan" command into vlan901 config os SW2?

Thanks.

Silver

Re: SPAN or RSPAN Configuration for intermediate Switch.

Alexander,

You will have to specify the remote vlan on Sw2, just creating it won't help. Following is the config for the SW2.

Switch(config)# monitor session 1 source remote vlan 901

Switch(config)# monitor session 1 destination interface fastEthernet0/5


The commands are a bit platform specific, as they are a bit different for the 6500 switches:

For SW2 on Cisco6500

Router(config)# monitor session 1 type rspan-destination

Router(config-rspan-dst)# source remote vlan 2

Router(config-rspan-dst)# destination interface gigabitethernet 1/2

Thanks

Ankur

"Please rate the post if found useful"

1008
Views
0
Helpful
5
Replies