Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

Multiport T1 network modules with IMA over ATM

We currently have 4 PPP T1's connecting 2 sites and are contemplating installing multiport T1 IMA over ATM modules to mux the bandwidth to 6mb. Has anyone done this? Is the service improvement worth the cost to install? Currently we are using EIGRP to load share between the T1's.

2 REPLIES
New Member

Re: Multiport T1 network modules with IMA over ATM

Have you qouted the costs out? For our region, AT&T was aggressively pushing the ATM T1s and they were actually cheaper than a standard leased T1. In our case we had some bursty traffic so we were able to save costs by using a low VBR and then bursting up to port.

However, you can all put your T1s into a single Dialer group and EIGRP will treat this as 1 6Mb pipe. Here is the link:

http://www.cisco.com/warp/public/131/7.html

~rlc

CCNP, CCDA, CNE

New Member

Re: Multiport T1 network modules with IMA over ATM

We have 2 routers on each end. We are seeing one T1 at max utilization while the others may be at 10 to 15 percent. Then the next T1 will be at max while the other 3 are available.

Will installing the T1 IMA ATM modules increase capacity a significant amount? Will we lose redundancy?

88
Views
0
Helpful
2
Replies
CreatePlease login to create content