Hi Team, Recently test the QOS in MPLS network occur one issue.
CE---PE-1----P----PE-2----CE. CE and PE just running static route, PE and P running OSPF for IGP, MP-BGP, then also LDP and MPLS/TE auto-tunnel. In the input direction of PE-1 towards CE side, i match the DSCP value CS6, then reset the value to CS5. In the output direction of PE-1 towards P side i match the DSCP value of CS5 also match the MPLS EXP 6 in one class-map. The issue is in the output direction if PE-1 towards P, i cannot match the DSCP value, but can match the EXP 6 (DSCP value CS6=EXP 6), i don't know why the reset DSCP value cannot work, because if the reset works, then the EXP 6 should not matched, DSCP value CS5=EXP 5. Also i don't know how the PE-1 router trust the QOS value, it will choose the DSCP value or MPLS EXP value? If in the same class-map, i match DSCP value and also MPLS EXP value, how the PE-1 Router choose? Which one will trust? I understand maybe this is a MPLS/VPN QOS design issue, will appreciate for any comments about this. Best Regards, Hu Xu _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
