[c-nsp] Load Balancing T1s on 2611

[Voll, Scott]

Have you put the load-sharing per-packet on both sides of the t1's, not
just the cable side?

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Roger Weeks
Sent: Friday, July 22, 2005 10:03 AM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] Load Balancing T1s on 2611

We provide the internet access for a local cable franchise, and due  
to demand have recently installed a second T1 for more bandwidth.

I have successfully done T1 load-sharing before on 1721 and 7206  
routers, but I am having a real problem getting it working on the  
2611 that we have in place at the cable head-end.

I've got IOS 12.2.29 running on it, with IP PLUS 3DES features (to  
support SSH and CEF).  It's got 64MB of DRAM.

Here's what I've done:

ip cef
ip load-sharing per-packet (on the serial interfaces)

dual ip route 0.0.0.0 0.0.0.0 upstream router entries

This is all we've done before to get load sharing working.  However,  
looking at the bandwidth utilization on the T1s, the old T1 is taking  
all the load except for about 20-40k on average on the new T1.

Any suggestions appreciated.

--
Roger J. Weeks
Systems & Network Administrator
Mendocino Community Network

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