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Nexus 5020/2248: Best Practice for DSCP-trust, verses DSCP-don't trust

We have several Nexus 5020/2248's for our server access to the network (approximately 1000 ports). On about 20 of these ports we want to trust the DSCP markings, since they are from out Cisco Unified Comm appliances (these are access ports). However, on all other ports  (mostly access, so DSCP, but ~ 100 trunks so some are COS also) we want to "not trust" or essentially zero out any non-zero DSCP value.

Does anyone have suggestions on easiest/best method for setting  the trust boundaries for Nexus 5020/2248s?

Note: vers 5.0(3) NS(1)

 

Thanks!

 

Mike.

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