[c-nsp] ME3400E - Shaping vlans?

[Pavel Skovajsa]

Per Vlan Egress Shaping and Per vlan Ingress policing is definitely
possible but not straightforward to configure since there are many
limitations.For example you can't have a "match vlan" in output policy-map
and you need to match against DCSP. For example:

class-map match-any Video
match ip dscp af41
match ip dscp cs4
class-map match-any Voice
match ip dscp ef
match ip dscp cs5
class-map match-any Mng
match ip dscp af21
match ip dscp cs2

policy-map 33Mps
  class Voice
    shape average 1024000
    queue-limit 150
  class Video
    shape average 20000000
    queue-limit 150
  class Mng
    shape average 1024000
    queue-limit 150
  class class-default
    shape average 33333333
    queue-limit 272
So you would need an input policy map that allows "match vlan" and set dscp
on that one. There are many more combinations that work, and many that
don't (priority,bandwidth,shape).

The best is to study the QoS guidelines for this platform. below are some
resources for ME3400:
http://www.cisco.com/web/DK/assets/docs/sp_me3400_IPTV.pdf
http://www.cisco.com/en/US/docs/switches/metro/me3400e/software/release/12.2_50_se/configuration/guide/ME3400eCG.pdf

Regards,
Pavel


On Thu, Sep 26, 2013 at 3:36 AM, Jeff Kell <jeff-kell at utc.edu> wrote:

> On 9/25/2013 9:32 PM, CiscoNSP List wrote:
> > Hi,
> >
> > Is it possible to shape vlans on the ME3400E? (i.e. Multiple vlans on a
> trunk port, shaping them at different speeds)?
>
> And to hop someone else's thread...  isn't there some simple way of
> "prioritizing" a vlan over the others via CoS?  It's certainly in the
> dot1q protocol but havent seen any practical examples/applications...
>
> Jeff
>
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