ISR 4321 - lan to lan routing \ switching \ Layer 3

[James Reeve]

I need to join 2 lan's at full gigabit speed.

So I got an ISR 4321 and configured ip's on 0/0/0 and 0/0/1 and the hosts connect to the ISR at gigabit speed but the file copy across the router is 5-10MBps.

So host A (10.1.0.253) > 0/0/0 on ISR 10.1.0.254 > < 0/0/1 on ISR - 10.2.1.254 > Host B 10.2.1.253.

Hosts A and B represent single layer 2 switched subnets.

Guessing I should be seeing 100MBps across the link after the bits to bytes conversion.

Am I missing something here ?

thanks

James

[Joseph W. Doherty]

No interface errors (on host ports)?

[Richard Burts]

You should also look for the possibility of duplex mismatch on the interfaces. This is something that would impact throughput.

HTH

Rick

[James Reeve]

Both ports are connecting at a gig - it's the throughput that's low.

I'm not convinced that routing the two networks is the best way to do it.

thanks

James

[James Reeve]

The ISR 4321 has a default throughput cap of 50Mbits (upgradeable to 100 with a key)

[James Reeve]

No errors. I think it's that it's routing between 0/0/0 and 0/0/1 when it should be routing vlans in a single interface.

The max bandwidth between the interfaces is 50Mbits with the default license.

Can't find any documented config for this router anywhere.

thanks

James