Hi all,
I do run a 7600 3CXL based backone and have 2 questions with MLS QOS
related to native ethernet vlan.
1°) How can I do egress scheduling on customers interfaces (routed
interfaces "no switchport" on LAN cards with no 802.1Q enabled)
My understanding is that this queueing mode can be based only on COS
field on GE and 10/100/1000 line cards. So what will be the router
behaviour if there is no 802.Q and therefore no 802.1p? I think I don't
have problem for 10GE interfaces as I could use dscp based queueing
(honnestly I don't really need egress scheduling on 10GE customers
interfaces...)
2°) I do run MPLS in the core for VPN services. The core interfaces are
in mode "no switchport" and are untagged as well (routed ports on 10GE
interfaces). Here too, what happens if I have cos based queueing (as
this is native ethernet)? What happens if I run DSCP based queueing (as
this is MPLS, can dscp be used?) My goal here is more to make sure that
my qos does not break anything.
Any good reference for mls qos on MPLS backbone is welcome!
Thanks a lot!
Jerome
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Jerome Durand
Responsable des services aux usagers
Services operations & support manager
Réseau National de Télécommunications
pour la Technologie, l'Enseignement et la Recherche
Tel: +33 (0) 1 53 94 20 40 | GIP RENATER
Fax: +33 (0) 1 53 94 20 41 | c/o ENSAM
E-mail: [email protected] | 151 Boulevard de l'Hôpital
http://www.renater.fr | 75013 PARIS
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