RSPAN on Layer 3 is it possible?

z.zdravkov · ‎02-07-2008

Hi,

I have the following topology:

3560 <->7600<-->7600<-->3560

Is it possible to transport layer 2 VLANs between 3560 switches? There is site to site VPN between 7600's. The target is to make remote SPAN between 3560's.

Thanks in advance.

Edison Ortiz · ‎02-07-2008

> Is it possible to transport layer 2 VLANs between 3560 switches?

I'm afraid not. The steps are configuring a remote span Vlan. This Vlan is the one transporting the information between the switches. Having a L3 connection between the switches breaks that design.

For more information on RSPA on 3560, please read:

http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_37_se/configuration/guide/swspan.html#wp1081130

HTH,

__

Edison.

jcoke · ‎02-07-2008

ERSPAN might be what you need. Take a look at this:

http://www.cisco.com/en/US/docs/routers/7600/ios/12.2SXF/configuration/guide/span.html

Edison Ortiz · ‎02-07-2008

That's not supported on 3560 switches.