I have an 1841 router with two T1 WICs. PPP is configured for Multilink1 interface and both serial lines are members of that Mu1 group. The following policy map is applied to Mu1 interface.
priority percent 18
bandwidth percent 15
set dscp af11
bandwidth percent 2
bandwidth percent 40
Transfer (push) FTP file (class-default class.) over Mu1 interface. No congestion on the line. The transfer hits max throughput about 1300kbps.
Policy is removed form Mu 1 interface, no congestion on the line. FTP file transfer is repeated. Max throughput goes almost to 3000kbps now.
Policy is modified as following and applied to Mu1 interface, no congestion on the line. FTP file transfer is repeated. Max throughput goes almost to 3000kbps now.
Above results are reproducible.
Background info - the other side of the link is terminated on 7200VXR router and use the same policy, transfer (pull) rate goes to 3000kbps in this direction.
It looks like a bug, but I could not find anything that will fit the description. Any suggestions?