12-27-2011 08:50 AM - edited 03-07-2019 04:04 AM
Hi Support Community team,
I have a very basic question related to input/output rate for a vlan interface. As vlan is a logical interface, so I suppose the i/p and o/p rate as stated under the interface refers to the combined i/p and o/p rates under its member interfaces. Is my understanding correct?
Just to make it more clear, I think that for vlan 180 (see below) , its 3 member ports (gi1/1, g1/2 and gi1/3) had an average input rate of
994000 bits/sec during last 5 min and an average output rate of 997000 bits/sec during last 5 min. So rates under vlan interfaces are just an indication of the traffic flowing across its member ports. Is it correct?
Router#sh int Vlan180
..................
5 minute input rate 994000 bits/sec, 454 packets/sec
5 minute output rate 997000 bits/sec, 420 packets/sec
.................
Router#show vlan brief
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
180 default active Gi1/1, Gi1/2, Gi1/3
thanx,
Kashish
12-28-2011 12:22 AM
Hi Kashish ,
Yes you are correct...
If you have 'N' number of ports in a particular Vlan ,total input and output rate of 'N' number of interfaces must be equal to input and output rate of that particular vlan.
With Rgds,
M Satish Kumar
12-28-2011 12:40 AM
I believe input/output rate under a vlan interface is the layer 3 traffic. So for vlan 40 interface, input/output will denote traffic going to/coming from other vlans.
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