[c-nsp] QoS VLAN Marking is not working 7600

[omar parihuana]

Arie,

Indeed we have many VLANs and each VLAN should be marked with different EXP
bits. I only copy a specific VLAN. The idea is don't trust in the source and
remark with specific EXP bits to the upstream, the PE-P is mpls enabled.
Anyway it's correct I have transit traffic originated by other devices
connected  to the 7600.

Rgds.



On Thu, Aug 25, 2011 at 6:55 AM, Arie Vayner (avayner) <avayner at cisco.com>wrote:

> Omar,
>
> What traffic do you expect to be marked with EXP 6?
>
> Do you have any transit traffic (i.e. traffic not originated by the
> 7600, but sent from a remote client), which is marked with some other
> (non EXP=6,0) value?
>
> Usually Prec 6 would be used for control traffic (routing protocols
> etc), and this traffic is usually one hop only, and would not be
> encapsulated with MPLS, so no EXP bits...
> The only exceptions I can think of would be transit BGP or directed LDP
> sessions terminated on a remote router (not the adjacent CRS)
>
> Arie
>
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of omar parihuana
> Sent: Thursday, August 25, 2011 02:08
> To: Leonardo Gama Souza
> Cc: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] QoS VLAN Marking is not working 7600
>
> Leonardo,
>
> Thank you for your answer,  there is enable MPLS between CRS and 7600.
> however, the PFC used is PFC3B. please do you have any doc regarding:
> "Moreover only PFC3C/PFC3CXL supports ingress EXP marking at ip2mpls." ?
> I'm reading
> http://www.cisco.com/en/US/docs/routers/7600/ios/12.2SR/configuration/gu
> ide/mplsqos.html#wp1531487
> I didn't find details about the "EXP Marking at ingress".
>
> Rgds.
>
>
> On Wed, Aug 24, 2011 at 4:07 PM, Leonardo Gama Souza <
> leonardo.souza at nec.com.br> wrote:
>
> > Omar,
> >
> > You won't be able to mark EXP bits if your interface to CRS isn't MPLS
>
> > enabled.
> > Moreover only PFC3C/PFC3CXL supports ingress EXP marking at ip2mpls.
> >
> > Cheers.
> >
>
>
>
> --
> Omar E.P.T
> -----------------
> Certified Networking Professionals make better Connections!
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-- 
Omar E.P.T
-----------------
Certified Networking Professionals make better Connections!