From: Brian Mahaffey (bmahaffey@sbcglobal.net)
Date: Sat Feb 16 2008 - 04:00:06 ARST
You need to use a route-reflector port on each side. So use port 6 since it isn't and never will be used (like burning a card in Texas hold em for instance)
Then what "I" do is trunk my remote span across its own link on the 3550 (since I have Fiber to burn).
For instance on my 3550 switches......
Cisco3550-1#sh vlan remote-span
Remote SPAN VLANs
------------------------------------------------------------------------------
991
!
Cisco3550-1#sh run | i monitor
monitor session 1 source vlan 10 , 20 , 30 rx
monitor session 1 destination remote vlan 991 reflector-port Gi0/6
!
Cisco3550-1#sh run int gi0/6
Building configuration...
Current configuration : 123 bytes
!
interface GigabitEthernet0/6
description PORT UNUSABLE - DUE TO REFLECTOR RSPAN
switchport mode dynamic desirable
end
interface GigabitEthernet0/5
description - RSPAN UPLINK ONLY
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 991
switchport mode trunk
Cisco3550-1#sh int gi0/6
GigabitEthernet0/6 is up, line protocol is down (monitoring)
Mirrored on the other 3550, there are a couple of different ways to accomplish this but this way works perfect for the solution I needed to solve.
Hope this helps or gets your started!
Tapas Das <tapas_75@hotmail.com> wrote: I have 2 two 3550 Switches, one as a VTP server and other as VTP Client.
My RSPAN VLAN is 6
Switch A & Switch B are connected thru ports 1,2,3 & 4, configured as
ether-channel. (trunk port)
port 10 on switch A is the source port
port 10 on switch B is the destination port
When using the refelector-port command on Switch A, which port no. should I
use.
Thanx in advance.
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