Hi there,
I posted this thread a few days ago but didn’t manage to get to the bottom of the issue then. Thank you to Giuseppe for his contribution to that thread.
The RSPAN config shown at the bottom of this thread isn’t doing as I expected. I want to only see the output from 3 voice VLANs (32,34 and 36) that are configured across two switches (connected by a VLAN trunked L2 port channel).
The problem is: Currently I’m seeing traffic from all VLANs for the switches when sniffing the port gig 7/10 on SW01.
Configured across the trunk are VLANs 1, 32, 33, 34, 35, 36, 39, 40, 41, 42, 44, 45, 46,47 and 951 (remote-span vlan).
Strangely, if I only configure one vlan source e.g. VLAN 32 within the contect 'monitor session 1 type rspan-source' then that is the only traffic that I see (as i would expect). As soon as I add more VLAN sources to the list however then traffic from all VLANs start to show up in the Wireshark trace?
The configuration I've applied is shown below. Any comments welcome.
DISTRIBUTION SW 01 -
vlan 951
name RSPAN_VLAN_951
remote-span
!
spanning-tree vlan 951 priority 8192
interface Port-channel1
switchport trunk allowed vlan add 951
monitor session 1 type rspan-source
source vlan 32 , 34 , 36
destination remote vlan 951
!
monitor session 11 type rspan-destination
source remote vlan 951
destination interface Gi7/10
interface GigabitEthernet7/10
description ** VOICE RECORDING PORT **
switchport
speed 1000
duplex full
end
DISTRIBUTION SW 02 -
Vlan 951
name RSPAN_VLAN_951
remote-span
!
spanning-tree vlan 951 priority 16384
interface Port-channel1
switchport trunk allowed vlan add 951
monitor session 1 type rspan-source
source vlan 32 , 34 , 36
destination remote vlan 951
!
we're currently running - disk1:/s72033-ipservices_wan-mz.122-33.SXH4.bin
Many thanks in advance and thanks for reading my post –
Andy
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