[j-nsp] IP Precedence rewrite of MPLS IPV4 payload on M series routers

Sorin CONSTANTINESCU consta at gmail.com
Wed Aug 31 14:52:04 EDT 2005

Hi, All.

I'm facing a small problem trying to rewrite the IP Precedence of IP
packets at the ingress of an MPLS/IP network.

I'm starting to think that it's impossible to do what i want :). As i
read in the documentation for JunOS7.3 for "Network Interfaces and
Class of Service", the rewrite for exp

"on M-series routing platforms causes all ingress MPLS LSP packets
with IPV4 payloads to be initialized with 000 code points for IP
Precedence and MPLS EXP values", this being said for both
mpls-inet-both and mpls-inet-both-non-vpn.

If i rewrite the exp to 100, the dscp is actually rewritten to 000100,
although i was expecting 100000. Does anybody know what i'm doing

Thanks a lot!
Cisco CCNP / JNCIA #845
consta at gmail.com

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