[c-nsp] Bonded T1 Circuits

[Jeff Wojciechowski]

Hi Dominic,

We do ours with MLPPP:

interface Multilink1
 bandwidth 3072
 ip address xxxxxxxx
 no cdp enable
 ppp multilink
 ppp multilink group 1

!
interface Serial0/0/0:0
 bandwidth 1536
 no ip address
 no ip proxy-arp
 encapsulation ppp
 no cdp enable
 ppp multilink
 ppp multilink group 1
!
interface Serial0/0/1:0
 bandwidth 1536
 no ip address
 no ip proxy-arp
 encapsulation ppp
 no cdp enable
 ppp multilink
 ppp multilink group 1

1) Both serial interfaces are a part of the logical Multilink interface. Nice part about this is you can add and remove circuits/interfaces to the Multilink quite easily.

2) Depending on the router on your end, you may run into limitations for how many ckts you can have in the bundle and have it work properly. Not sure how many the 1841 will support. In our case, I believe our 2821 can support a max of 4 T1s.


-Jeff

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Dominic
Sent: Tuesday, October 20, 2009 10:06 AM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] Bonded T1 Circuits

Hi Everyone:

Two questions:

1. I need to bond two T1 circuits. Does anyone have a working sample config? 
The POP end is a 7206VXR with NPE-G2 and the PA-MC-2T3-EC Card, and the 
customer end is a Cisco 1841.
2. Also need to bond as many as 4 T1s.  Would that be pushing it, and what 
would generally be the cleanest way to do it?


Dominic 


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