Hi All, Thanks for the reply... Dale,
I'm classifying packet on the ingress interface by matching all the packets and associating it with forwarding-class EF and loss-priority low. When I do a packet capture I can see the inner-most IP packet and upper label are carrying appropiate DSCP and EXP values....When this MPLS packet is encapsulated in a GRE packet, that is when TOS byte is to 00.. Diogo, Yes, copy-tos-to-outer-ip-header doesn't work as the header following the GRE header is a MPLS packet...I had tired simple output-firewall filters too, but it didn't work either..I would try your suggestion of matching GRE packets + ipsrc + ipdst in the output filter.. output-forwading-class-map seems to be an option for M320/T series routers, here its M7i... Cheers On Tue, Jan 18, 2011 at 2:16 AM, Diogo Montagner <[email protected]>wrote: > Hi, > > You can also try to apply an output firewall filter in the gre > interface to rewrite the DSCP of the packet. > > I think the option copy-tos-to-outer-ip-header will not work because > your inner packet is not an IP packet and this option only works for > inner IP packet. > > If this does not work, you can apply an outbound firewall filter in > the output direction of your interfaces matching GRE packets + ipsrc + > ipdst of your tunnel and then applying the right dscp values. > > Another option you can give it a try is the output-forwarding-class-map: > > http://www.juniper.net/techpubs/en_US/junos9.6/information-products/topic-collections/config-guide-cos/cos-classifying-packets-by-egress-interface.html > > HTH > ./diogo -montagner > > > > On Tue, Jan 18, 2011 at 4:59 AM, Dale Shaw > <[email protected]<dale.shaw%[email protected]>> > wrote: > > Hi Shiva, > > > > On Monday, January 17, 2011, Shiva Shankar <[email protected]> wrote: > >> Hi All, Thanks for the reply. Platform is M7i, and the junos is 9.3 > >> > > [...] > > > > How are you classifying traffic into the forwarding classes in the > > first place? The rewrite-rule assumes traffic has been classified > > already. For example, for the 'ef' rewrite-rule to work, you must have > > already mapped your voice RTP traffic into the 'ef' forwarding-class. > > > > You need a Behaviour Aggregate (BA) classifier, Multi-Field (MF) > > classifier or static classifier applied on the ingress interface(s) > > under the class-of-service stanza. > > > > Cheers, > > Dale > > _______________________________________________ > > juniper-nsp mailing list [email protected] > > https://puck.nether.net/mailman/listinfo/juniper-nsp > > > _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
