Actually I have done serveral IMA configs utilizing regular ole T1 circuits and you only need a single subnet if you configure an IMA interface and assign the interfaces to it via the ima group.
http://www.cisco.com/warp/public/121/paima.html Dave GS wrote: > > You should ask you carrier what type of cards they are terminating the T1 > lines to. Most carriers support IMA and all u need is properly configure > your IMA group. If however you carrier have delivered three T1 in the form > of three separate local loops and they are terminating your access to T1 > cards then you have to: > load balance/Share on ur 7200 using L3 ( such as equal cost load balancing > through static routes or whatever). > The problem of this setup is that it each local loop is required to have it > own subnet. > You will have to configure your ATM-IMA adaptor in what we call pass-through > mode (which necessarily implies that each port functions as an individual T1 > port without the benefits of IMA). > > The IMA-Mux you're looking for is useless for your case.. since all the IMA > mux do is take a single input (normally E10) and delivers an inverse muxed > stream (meaning ATM cells belonging to the same connection split over > several outgoing links) > > If ur carrier is doing the latter I suggest u save ur self the headache and > dump them :-)))) > > ""Adam Wang"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Hi group, > > > > I have a few 7200 with ATM-CES adapters in them. I > > want to depoly them over WAN with a 4.5 meg bandwidth > > to each. The telco handed to us 3 T1s. I would > > assume an IMA device of some kind is needed here. > > However, I still want to use the existing ATM-CES > > adapters for this case. How would I set this up if I > > use a Cisco IMA adapter? Are there any other external > > IMA mux besides the cisco's IMA adapter that I can use > > with my atm-ces module, and are less than $5000? > > > > I'm new to ATM, so any input would be greatly > > appreciated. > > > > Adam > > > > __________________________________________________ > > Do You Yahoo!? > > Check out Yahoo! Shopping and Yahoo! Auctions for all of > > your unique holiday gifts! Buy at http://shopping.yahoo.com > > or bid at http://auctions.yahoo.com -- David Madland Sr. Network Engineer CCIE# 2016 Qwest Communications Int. Inc. [EMAIL PROTECTED] 612-664-3367 "Emotion should reflect reason not guide it" Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=31283&t=29368 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]