SPAN Verification

From: Robert Smith (thecure007@gmail.com)
Date: Wed May 14 2008 - 14:10:55 ART


Hi Experts,

I am trying to verify that the following scenario is working:

SW1(fa0/16)------(fa0/13)SW3(fa0/20)----(fa0/20)SW4

SW1:
interface FastEthernet0/16
 no switchport
 ip address 21.21.21.1 255.255.255.0
end

SW4:
interface FastEthernet0/20
 no switchport
 ip address 23.23.23.4 255.255.255.0
end

SW3:
interface FastEthernet0/13
 switchport access vlan 21
 switchport mode access
 switchport nonegotiate
end
!
interface FastEthernet0/20
 switchport access vlan 23
 switchport mode access
 switchport nonegotiate
end
!
int vlan 21
ip address 21.21.21.3 255.255.255.0
!
monitor session 2 source interface Fa0/13
monitor session 2 destination interface Fa0/20

So what I am trying to accomplish is... when sw1 pings sw3 int vlan21, sw3
sends a copy of this traffic to sw4 on its fa0/20 port. However when I turn
debug monitor all on sw3 and debug ip packet detail on sw4 on, I don't get
any output. The ping in sw1 shows as successful.

Is my verification method wrong? Am I missing something?

Thanks in advance,



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