3850 Routing Capacity

[jkennedy11111]

Hello.  I've done some searching and haven't found any response that really speaks to my question, hence this post.

Question:

What is the routing capacity of a 3850?

Background:

Specifically we are using OSPF in our network. The OSPF "interface" is a L3 VLAN interface. Our SNMP monitoring systems are showing that this VLAN is peaking near its capacity of 1 gig. From reading elsewhere I understand that this measurement of 1 gig is used for its OSPF advertised routing metric, however is that also its actual routing capacity? The monitoring system appears to be plateauing at this 1 gig throughput, ramping up toward 1 gig and remaining steady for half of the day. This quantity of traffic is normal and expected for our usage, however I should think we have room for more routed traffic than 1 gig on this switch (stack).

We have had some reports of performance issues in relation to services on this device. If we are indeed hitting a limit, this could very well explain the symptoms felt.

Thoughts?

[Joseph W. Doherty]

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Posting

I believe the routing capacity should be the about same as the L2 capacity.  Mpps rate varys per model.

[jkennedy11111]

In this case we have this VLAN associated to two (2) 10 gig interfaces and one (1) 1 gig interface. Once I remove that VLAN from the 1 gig interface, should I expect that the VLAN IF "bandwidth" to increase from 1 gig to 10 gig?

[Reza Sharifi]

No, the vlan bandwidth will not change.  To see the interface performance look at the physical interfaces transmit/receive and not vlan interface.

HTH