I have three sites, intermeshed using full T3's, 6506's w/720 sups, flexwans w/2ds3+ modules, using different providers.
In each case I can't get more than about 7mb session. I've tried several tools (ftp, ttcp, mgen) and they all stop at about 7mb. I can run 8 sessions in parallel and get the full 44mb, but not anything higher than 7mb for an individual session.
Except for the carriers, all three sites (26506's per site) are identical.
I've had a similar problem with a pipe not being fully utilized....had 2 T1's load balancing with ip cef per-packet between two sites, however I hardly got anything over 1 mb transfer of any single session at a time. Turns out what it was is the nature of TCP..the packets were arriving out of order due to cef, and the other side thought it was dropping packets because one side was sending too fast so it sent those little requests to "slow down" your transmission speed.
Don't know your topology/configs exactly, but this sounds similar.
We are pleased to announce availability of Beta software for 16.6.3.
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