[c-nsp] RSPAN and 3550

[Alexey Luckyanchikov]

On Tue, 14 Sep 2004, Voll, Scott wrote:

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

Yes, I sure that all switches have vlan 107 active:
3550-1#sh vlan id 107

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
107  RSPAN                            active    Fa0/2, Fa0/23, Gi0/1
[...skip...]
Remote SPAN VLAN
----------------
Enabled

3550-2#sh vlan id 107

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
107  RSPAN                            active    Gi0/1
[...skip...]
Remote SPAN VLAN
----------------
Enabled

3508-1#sh vlan id 107
VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
107  RSPAN                            active

3508-2#sh vlan id 107
VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
107  RSPAN                            active

I have pc-router connected to 3550-1. I tried to make more simple scheme -
add RSPAN vlan to router's trunk port and see traffic on RSPAN vlan
throw tcpdump. Result was the same - no traffic :(

VS> -----Original Message-----
VS> From: Alexey Luckyanchikov [mailto:alexl at alkar.net] 
VS> Sent: Tuesday, September 14, 2004 8:19 AM
VS> To: cisco-nsp at puck.nether.net
VS> Subject: [c-nsp] RSPAN and 3550
VS> 
VS> I need to setup RSPAN session between two 3550. Network topology:
VS> +------+ GigaStack +------+ LX/LH +------+ GigaStack +------+
VS> |3550-1|-----------|3508-1|-------|3508-2|-----------|3550-2|
VS> +------+           +------+       +------+           +------+
VS> 
VS> 3550-1 and 3550-2 are in vtp transparent mode, all 3508 - in separate
VS> vtp domain (server and client).
VS> 
VS> 3550-1 configured as RSPAN source, 3550-2 - as RSPAN destination. I
VS> see packets on reflector port, but 3550-1 does not transmit any
VS> packets in RSPAN vlan to 3508-1:
VS> 3508-1#sh mac-address-table int gi0/5 vlan 107
VS> 
VS> 3508-1#
VS> 
VS> vlan 107 allowed on trunk between 3550-1 and 3508-1, all switches have
VS> vlan 107 in their vlan databases.
VS> Any suggestions how to fix this issue?
VS> 
VS> 3550-1 configuration:
VS> vlan 107
VS>  remote-span
VS> !
VS> monitor session 1 source interface Fa0/3
VS> monitor session 1 destination remote vlan 107 reflector-port Fa0/18
VS> !
VS> interface FastEthernet0/3
VS>  switchport access vlan 4093
VS>  switchport mode access
VS>  switchport block multicast
VS>  switchport port-security
VS>  switchport port-security maximum 2
VS>  switchport port-security aging time 5
VS>  switchport port-security violation restrict
VS>  switchport port-security aging type inactivity
VS>  load-interval 30
VS>  speed 100
VS>  duplex full
VS>  storm-control broadcast level 5.00
VS>  no cdp enable
VS>  spanning-tree portfast
VS> !
VS> interface FastEthernet0/18
VS>  switchport mode access
VS>  load-interval 30
VS>  no cdp enable
VS>  spanning-tree portfast
VS> !
VS> interface GigabitEthernet0/1
VS>  description 3508-1
VS>  switchport trunk encapsulation dot1q
VS>  switchport trunk allowed vlan 1-400,700,1000
VS>  switchport mode trunk
VS>  load-interval 30
VS> 
VS> 
VS> 3550-2 configuration:
VS> vlan 107
VS>  remote-span
VS> !
VS> monitor session 1 destination interface Fa0/14
VS> monitor session 1 source remote vlan 107
VS> !
VS> interface FastEthernet0/14
VS>  switchport mode access
VS>  no ip address
VS>  load-interval 30
VS>  no cdp enable
VS>  spanning-tree portfast
VS> !
VS> interface GigabitEthernet0/1
VS>  description 3508-2
VS>  switchport trunk encapsulation dot1q
VS>  switchport mode trunk
VS>  no ip address
VS>  load-interval 30

-- 
Sincerely,
Alexey Luckyanchikov