Ignoring some of the more exotic QoS that can be done on the 7600 CWAN cards, on the 6500/7600 platform you only have two options I am aware of. 1) trust the incoming TOS and it will be mapped to EXP automatically. 2) use service-policy on non-trusted interface to set all EXP values manually.
-Ben On Jul 30, 2010, at 10:57 AM, Patrick Abeldt wrote: > Hi all, > > we're planning to introduce MPLS within our network backbone, among other > things for QoS purposes. Our current concept is based solely on using EXP > values for different priority levels (the IP TOS fields need to be left > unchanged.) > > Aside from applications which require higher-than-normal forwarding > priorities, we have a small number of traffic flows which we'd like to > assign a lower-than-normal priority. As far as I can see, this would > require an EXP value > 0 for standard traffic. More precisely, I'd need to > set a specific default EXP value for all labels imposed on a MPLS router, > regardless of interface etc. Are there easy methods to achieve this goal, > preferably on the global configuration level? > > The only solution I've found so far is to impose that default EXP value > via a service policy attached to the respective interfaces. But given the > number of interface configs, this would be extremely cumbersome to manage, > and additionally it would interfere with existing service policies. I > think this is definitely not the way to go. > > Any suggestions regarding an alternative design would be also welcome. > We're using c6500/Sup720/PFC3 devices with IOS version > s72033-advipservicesk9_wan-mz.122-33.SXI3. > > Thanks for your advice, > Patrick > > > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
