Hi All,
I am setting up some IP phones at a remote office over a VPN. The VPN is terminated to a PIX 501. Voice quality is good, except when there is a large file transfer over the VPN. Since the PIX doesn't do QoS, I will be putting an ethernet-to-ethernet router on the inside to handle queueing.
My question is, since the uplink speed is low (128k), how can I fragment the packets going to the VPN? I think the serialization delay is killing the VoIP packets. I want to do something like Frame Relay Fragmentation, but on ethernet.
I've thought of limiting MTU, but I only want to do this for traffic outbound to the VPN, not everything going to and from the internet.
Any ideas are appreciated.
Thanks, Randy