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port spanning

dave dave
Level 1
Level 1

hi! In our network, we've 2x L3 4506 switches running HSRP and with a couple of edge switches connected to these 2 core switches.

I'm trying to turn on Port spanning for a few VLANs and trunk/access ports in one of the L3 4506 to be monitored in a destination port.

Here's my planned configuration.

C1(config)# no monitor session 1

C1(config)# monitor session 1 source interface gigabitethernet2/1
monitor session 1 source interface gigabitetherne2/2
monitor session 1 source vlan 10 , 20 , 30

monitor session 1 destination interface gigabitethernet5/20 

Is this configuration ok? Anything that i need to take note when doing this configuration? Will this configuration have any impact on existing network/connectivity? Thanks

2 Replies 2

Rajeev Sharma
Cisco Employee
Cisco Employee

Hey,

Your configuration looks fine and should not give you any troubles as far as network connectivity is concerned however I have only one concern; you are spanning port Gig2/2 and vlan 10,20,30 inbound and outbound traffic to Gig5/20, which may be overwhelming for this interface and you may see some output drops on this interface.

HTH.

Regards,
RS.

dave dave
Level 1
Level 1

for my case, the vlan and interface source have to be in different session.

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