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Beginner

Nexus 5548 - QOS Mark packets on Egress?

Hi All

I have a Nexus 5548 pair using Nexus 2248TP's FEX's. i want to mark the traffic connecting to multiple FEX ports via Port-Channel.

i want to classify and mark traffic using ACL's but I understand that this is not possible on FEX ports?

I am only interested in marking these packets so the DSCP markings can be used by the WAN; not concerned with any prioritization/queuing on the Nexus devices.

Can I mark Egress on my Nexus 5548, on the ports going to my core? Something like this:

! Classify storage traffic
ip access-list ACL-STORAGE-BACKUPS
  remark Snapmirror-Snapvault async
  permit tcp any eq 10566 any
  permit tcp any any eq 10566
  remark Snapmirror-Snapvault sync
  permit tcp any any range 10567 10569
  permit tcp any range 10567 10569 any
! Match traffic
class-map type qos match-any CM-STORAGE-BACKUPS-CLASS
  match access-group name ACL-STORAGE-BACKUPS
!Mark traffic
policy-map type qos PM-QOS-POLICY-5K-EGRESS
  class CM-STORAGE-BACKUPS-CLASS
    set  dscp cs1
!Apply to core uplink(will only affect 5K ports)
service-policy output PM-QOS-POLICY-5K-INGRESS
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