cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
394
Views
0
Helpful
5
Replies

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

James Reeve
Level 1
Level 1

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

5 Replies 5

Joseph W. Doherty
Hall of Fame
Hall of Fame

No interface errors (on host ports)?

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

 

HTH

 

Rick

HTH

Rick

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

 

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

 

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

 

 

 

Review Cisco Networking for a $25 gift card