RSPAN VLAN on a Data VLAN

[Carlos Aguinaldo]

Hi all.

We have offices for rent and each has a dedicated VLAN for our office staff and separate VLANs for each client that will be renting on our office.

Each office has a small topology, usually a star, and one of the edge switches has a mirrored port and the source port will be the core's uplink to the FW. So is it alright to put the RSPAN VLAN on the same VLAN as the office staff VLAN? Or should I have a dedicated VLAN for RSPAN?

The reason I'm asking is because, if I propose to create a separate VLAN, then we'll need to create it on the switches and firewalls on all offices, additional firewall rules. etc..

Please advise. Thanks!

[Aaron Harrison · Accepted solution]

Hi

It would be a very bad idea to use a normal VLAN as an RSPAN VLAN. You should create a new VLAN dedicated for this purpose.

Please see this list of differences in the behavior of the VLAN types:

http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3560/software/release/12-2_52_se/configuration/guide/3560scg/swspan.html#wp1200730

Regards

Aaron

[Carlos Aguinaldo]

Thanks for shedding some light on this. The link was absolutely helpful.