Bind multiple T1 interfaces for greater bandwidth

[Rigel1210]

Is it possible to combine 2 T1 serial interfaces as one to give a 3MB pipe to the Internet? Info: Cisco 2620, IP numbered T1's each on independent WIC 1T CSU/DSU cards, each is setup as IETF Frame from same provider. (Serial0/0 and Serial0/1 with their respective .1 frame interfaces).
Need ideas on config. I was thinking along the lines of ppp multilink but don't know if that will work on a framed T1.

Thanks

 

[jeter]

A multilink frame relay setup is what you need for your application.

“Reserve your right to think, for even to think wrongly is better than not to think at all”

CCNA,CCNP,Network+
Tek-TIP Member 19,650

 

[Rigel1210]

My concern with the ppp multilink config is that my T1's are setup by my service provider as Frames. In other words, each T1 is an IETF Frame Relay even though they are "full" T1's. I am under the impression that in order to utilize a ppp multilink connection, they would have to be point-to-point T1's and NOT framed... or am I wrong? I cannot, for instance set my Serial0/0 interface to PPP because it is segmented into a Serial0/0.1 frame interface (which is point-to-point). By default, setting up a multilink interface, it's going to come up as a PPP interface.

If I'm missing the point here, it's because I'm a relative newbie to Cisco -- if you could type in a sample config for the Serial interfaces and whatever is needed to setup the multilink it would be greatly appreciated. And, if multilink is the way to go, does it have to be IP numbered since both T1's are IP numbered and on different subnets.

I'm confused but open to suggestions...

Thanks

 

[jeter]

Point to point would be better because you will get a true 1.5 per circuit. The Frame-relay depending on your CIR will come into play. However, we just setup a MFR router and had no problems with bandwidth. Keep in mind that your service provider will need to configure their end correctly.

“Reserve your right to think, for even to think wrongly is better than not to think at all”

CCNA,CCNP,Network+
Tek-TIP Member 19,650

 

[Rigel1210]

Thanks Jeter, for the responses. Unfortunately, my router doesn't support multilink frame (mfr) -- we're a mid-sized outfit and I'm running a 2620 as my edge router -- so, I'll need to get with my service provider to get the T's off of frame and try to work it out as a ppp multilink connection.

You've been a big help - opened my eyes a bit here - now, if I could only find my thinking cap - I had it around here someplace.

Thanks