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7606 SPAN Issues

Hello all,

I'm trying to configure a SPAN monitor session on a 7606 router.

interface GigabitEthernet3/7

description to IDS01 SPAN Port

no ip address

speed 1000

duplex full

switchport

switchport trunk allowed vlan 4,5

switchport mode trunk

spanning-tree portfast trunk

at this point my interface show up/up.

after I applied the below monitor session.

monitor session 2 source interface Po3

monitor session 2 filter vlan 4 - 5

monitor session 2 destination interface Gi3/7

My G3/7 show up/down. The IDS is plug into G3/7, showed up/down as well.

Would like to understand why i'm getting an interface of up/down.

OH, the 7606 is using SXD3.

Thank.

1 REPLY
Silver

Re: 7606 SPAN Issues

When configuring monitor sessions, note the following information:

To tag the monitored traffic, you must configure the port to trunk unconditionally before you configure it as a destination.

http://www.cisco.com/univercd/cc/td/doc/product/core/cis7600/software/122sx/swcg/span.htm

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