show interface command

Unanswered Question
Dec 31st, 2007

Don't know exactly know why.

I assigned int Gi0/1 to vlan 450 and I assigned int vlan 450 an IP address. When I check the pkts/sec on int vlan 400 shows 0 pks/sec and when I show int gi0/1 shows 1120 pkts/sec. What is going on. Am I suppose to see about the same amount of traffic??

I have this problem too.
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binhkdinh Mon, 12/31/2007 - 11:28

Gi0/1 is assigned to VLAN 450, and you do "show int VLAN 400"?

Is this a typo?

Edison Ortiz Mon, 12/31/2007 - 11:33

You won't see the same amount of traffic. Most of the traffic will be Layer3 or Layer2 switched and won't use the SVI (Switch Virtual Interface) Vlan 450.

Luis Melendrez Mon, 12/31/2007 - 12:08

I'm using using this devices as a router and I was expecting to see traffic going out on int vlan 450.

So becuase most of my traffic is Layer 3 is not using the svi?? and going directly to the physical interface? I kind of loose the definition of SVI on this scenario.

Edison Ortiz Mon, 12/31/2007 - 12:31

Most of the traffic is Layer3 switched vs Layer3 routed.

Layer3 routed is what you use when the SVI transports the data from one segment to another.

The router builds a table that has the ingress/egress ports associated with IP address to make forwarding decision. It relies on the SVI, when the information has age-out and no longer on the table.

Edison Ortiz Wed, 01/09/2008 - 19:22

No, it relies on the mac-address-table to make forwarding decision.





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