I have an MPLS network with a 9Mb, Multilink PPP pipe at the core and T1 or less pipes at the branch offices. We are connecting to our MPLS provider via BGP and we are using Cisco WAE's at each site with v4.1.1c of WAAS code as well.
The problem is that we are experiencing occassional slowness with remote sites with the receiving of data from the core. Occassionally, one user will copy or open a file via CIFS and consume all of the bandwidth. We recently went from a FIFO queueing strategy at the core (weighted fair-queue at the remote sites, by default) to a weighted fair-queue at the core with seemingly positive effects. However, we still get occassional reports of RDP latency. In addition, we are not using RDP on the standard port of 3389 -- we are using port 81 instead.
Here is the current config of the Multilink (6 T1's -- ugh) at the core. Does anyone have any suggestions for further configuration of this Multilink so that our remote sites don't experience the slowness in RDP? Or do I need to go down the road of priority queueing instead?
Here's the config of the Multilink PPP as it is now:
ip address xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx
ip nbar protocol-discovery
ip route-cache flow
fair-queue 256 256 0
ppp multilink group 1
ppp multilink fragment disable