[c-nsp] RSPAN and 3550

Voll, Scott Scott.Voll at wesd.org
Tue Sep 14 11:45:16 EDT 2004


Have you made sure all switches have vlan 107 active?  I know I have had
to play with the vlans in order for them to come up.  You can always
turn off RSPAN and see if you have end to end connectivity then turn it
back on.

Scott

-----Original Message-----
From: Alexey Luckyanchikov [mailto:alexl at alkar.net] 
Sent: Tuesday, September 14, 2004 8:19 AM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] RSPAN and 3550

I need to setup RSPAN session between two 3550. Network topology:
+------+ GigaStack +------+ LX/LH +------+ GigaStack +------+
|3550-1|-----------|3508-1|-------|3508-2|-----------|3550-2|
+------+           +------+       +------+           +------+

3550-1 and 3550-2 are in vtp transparent mode, all 3508 - in separate
vtp domain (server and client).

3550-1 configured as RSPAN source, 3550-2 - as RSPAN destination. I
see packets on reflector port, but 3550-1 does not transmit any
packets in RSPAN vlan to 3508-1:
3508-1#sh mac-address-table int gi0/5 vlan 107

3508-1#

vlan 107 allowed on trunk between 3550-1 and 3508-1, all switches have
vlan 107 in their vlan databases.
Any suggestions how to fix this issue?

3550-1 configuration:
vlan 107
 remote-span
!
monitor session 1 source interface Fa0/3
monitor session 1 destination remote vlan 107 reflector-port Fa0/18
!
interface FastEthernet0/3
 switchport access vlan 4093
 switchport mode access
 switchport block multicast
 switchport port-security
 switchport port-security maximum 2
 switchport port-security aging time 5
 switchport port-security violation restrict
 switchport port-security aging type inactivity
 load-interval 30
 speed 100
 duplex full
 storm-control broadcast level 5.00
 no cdp enable
 spanning-tree portfast
!
interface FastEthernet0/18
 switchport mode access
 load-interval 30
 no cdp enable
 spanning-tree portfast
!
interface GigabitEthernet0/1
 description 3508-1
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 1-400,700,1000
 switchport mode trunk
 load-interval 30


3550-2 configuration:
vlan 107
 remote-span
!
monitor session 1 destination interface Fa0/14
monitor session 1 source remote vlan 107
!
interface FastEthernet0/14
 switchport mode access
 no ip address
 load-interval 30
 no cdp enable
 spanning-tree portfast
!
interface GigabitEthernet0/1
 description 3508-2
 switchport trunk encapsulation dot1q
 switchport mode trunk
 no ip address
 load-interval 30

-- 
Sincerely,
Alexey Luckyanchikov
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