On the router you can try additional commands mss-adjust and PMTU Dicovery (there is a known DOS issue with that though), along with adjusting the MTU on the interface. They seem to be intermittnent in effect. If the hosts are running a Local FireWA...
Is the slowness noted when using any type of secure applications (sharepoints, exchange). If so you might be running into a packet fragmentation issue (encrypted packet hate it). try adjusting down the MTU allowed, either on the routers or the end-...
Have you seen any problems with PPP for LFI affecting packets larger then a given MTU size? (similar to what you see in VPN deployments) We have enabled PPP/LFI for a VoIP on a FR-to-ATM 512K PVC. Traffic with a size greater then 1230, has a high f...
I've got a 3540, I don't know if you have the same options, but... under the IP/VC Adminstrator MCU comman Advanced tab/comands button you can register/unregister to the gatekeeper (pages 4/23 int the "IP/VC 3540 MCU Module Admin. Guide"). I don't kn...
