cRTP Support on L3 VPNs

shri krishan Bansal · ‎06-17-2008

CPE --- PE---P---P---PE----CPE

Above is the topology. We need to enable the cRTP between the CPE devices.SP will not configure the cRTP on the PE Devices.How we can achieve with L3 VPNs?

waleed_amer · ‎06-18-2008

Hi,

cRTP changes the packet header and, therefore, must be decompressed before routing can take place. This makes cRTP a hop-by-hop protocol, with decompression and recompression occurring in every routing node in which the feature is enabled and with using GRE also you will lose GRE headers so you need L2 PVC between CPEs.

Regards,W.Amer