Multilink PPP over multiple carriers?

[PBrider]

I have found a few articles that have said that Multilink PPP can't work when using multiple T1 providers. The reason they give is that both circuits need to terminate into the same end router. Since I have both T1's running between two routers, does this mean it is possible? Or is something needed on the ISP's end for this configuration?

I actually had this setup in my production network and I didn't see any issues with this. We have since removed the multilink due to trouble shooting an application issue.

 

[burtsbees]

You have two T1 lines, both coming from your router and both terminating in a different router (but both lines MUST be in the same router)...

----| |-----
|---------T1---------|
RA | | RB
|---------T1---------|
----| |-----

Both routers must have the same multilink ppp config in them. Now Ra is your router, and RB is theirs---it does not matter if two ISP's share the router and each provide a T1---they MUST be in the same router, because the multilink logical interface bonds the two physical interfaces, and this CANNOT happen if each T1 is in a different router. I can't see how two different providers can have a T1 in the same router, but stranger things have happened...

Capiche?

Burt

 

[burtsbees]

Damn TGML...

Burt