I have a DS3 that we use to carry multiple WAN T1's between sites. We breakdown each T1 and then sub-interface them. One site is a 7204 and the other is a 7507.
We use one of the T1's for traffic between these two sites. We are now pushing that pipe to it's limit and would like to take an adjacent (unused) T1 and bond the two together to get twice the bandwidth. How do I do this?
Do I use ppp multilink on both and build a multilink group?
Which IOS interface commands do I use?
One other thought - is there a way to build a single interface from two T1 time slots to provide twice the bandwidth?