You are into the heart of the problem "P2P connections" but maybe I wasn't very clear in my illustration. In your Config you have created an IMA group with three active links. works great. This IMA group however has to be terminated to a port that understands IMA and not a normal T1 port. Your configuration works fine caus you have emulated an ISP connection through a P2P connection to ports that speak IMA "using 3 cross over RJ-48C cable".
If you try to terminate those circuits to a 36170 T1 card "no support for IMA" for example, your CIU will show a status up, line protocol up for each member of IMA group0 members "that is interfaces ATM1/0, ATM1/1, ATM1/2". Looks good? NO :-) If you did a show controllers for "interface ATM1/IMA0" you will see a status showing as up while the line protocol is down (i.e. your whole connection is unusable). That's what I was telling Adam. My apologies for a late reply.. sucked in some shitty code red tracking. I will pass you a config for pass through mode with single links once I am done. Thanks ""MADMAN"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Maybe I'm not following you but we don't support IMA, though we a > starting to, and the following congfig I did Monday. Three p=p T1's > tied to an IMA0 interface: > > Current configuration : 1676 bytes > ! > version 12.1 > no service single-slot-reload-enable > service timestamps debug uptime > service timestamps log uptime > no service password-encryption > ! > hostname IMA_Router > ! > logging rate-limit console 10 except errors > enable password noneofyourbusiness > ! > ip subnet-zero > ! > ! > no ip finger > ! > call rsvp-sync > ! > ! > interface FastEthernet0/0 > ip address 10.128.0.31 255.255.255.0 > duplex auto > speed auto > ! > interface ATM1/0 > no ip address > atm vc-per-vp 256 > no atm ilmi-keepalive > ima-group 0 > no scrambling-payload > ! > interface ATM1/1 > no ip address > atm vc-per-vp 256 > no atm ilmi-keepalive > ima-group 0 > no scrambling-payload > ! > interface ATM1/2 > no ip address > atm vc-per-vp 256 > no atm ilmi-keepalive > ima-group 0 > no scrambling-payload > ! > interface ATM1/3 > no ip address > shutdown > atm vc-per-vp 256 > no atm ilmi-keepalive > no scrambling-payload > ! > interface ATM1/4 > no ip address > shutdown > atm vc-per-vp 256 > no atm ilmi-keepalive > no scrambling-payload > ! > interface ATM1/5 > no ip address > shutdown > atm vc-per-vp 256 > no atm ilmi-keepalive > no scrambling-payload > ! > interface ATM1/6 > no ip address > shutdown > atm vc-per-vp 256 > no atm ilmi-keepalive > no scrambling-payload > ! > interface ATM1/7 > no ip address > shutdown > atm vc-per-vp 256 > no atm ilmi-keepalive > no scrambling-payload > ! > interface ATM1/IMA0 > ip address 192.168.1.2 255.255.255.252 > atm vc-per-vp 256 > no atm oversubscribe > no atm ilmi-keepalive > pvc 0 1/32 > ! > ima clock-mode independent > ! > ip classless > no ip http server > ! > ! > dial-peer cor custom > ! > > > end > > MILA_Tukwila# > > > GS ELSIDDIG wrote: > > > > Thanks Dave. > > There is no problem is assigning a single link to the min active IMA links. > > This will indeed allow you to utilize one link per IMA group. But that is > > not the problem. > > If the carrier doesn't support IMA (i.e. terminating the circuit to a T1 > > card and not a cell relay card with IMA support), all you will see is: > > status is up while the line protocol is down. > > That's why you will need to use pass through mode. > > > > Thanks > > > > ----- Original Message ----- > > From: "MADMAN" > > To: "GS" > > Cc: > > Sent: Tuesday, January 08, 2002 10:34 AM > > Subject: Re: ATM with 7200 and IMA with CES [7:29368] > > > > > > > > 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" > -- > 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=31616&t=29368 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
