[j-nsp] L2VPN CoS

[Herro91]

Hi,

I did some checking and you should be able to (depending on the PE platform
- it works on Cisco and Juniper [depending on platform]) inspect the L3 DSCP
bits (assuming you have different markings) to classify.




On Tue, Oct 26, 2010 at 11:10 AM, Eric Van Tol <eric at atlantech.net> wrote:

> It's my understanding (which may be wrong entirely), that 802.1p is only
> set when 802.1q VLAN encapsulation is being used.  In this setup, while
> there are two VLANs on the customer side, they are being terminated on the
> CPE and they connect to the L2VPN via a single VLAN, untagged to an Ethernet
> over Copper L2 CPE to the transport provider.  Basically, all their traffic
> is sent to us over a single tagged VLAN.
>
> From: Herro91 [mailto:herro91 at gmail.com]
> Sent: Tuesday, October 26, 2010 10:30 AM
> To: Eric Van Tol
> Cc: juniper-nsp at puck.nether.net
> Subject: Re: [j-nsp] L2VPN CoS
>
> Hi,
>
> If memory serves on the ethernet side you would need something to classify
> on, 802.1p bits in vlan header. Is that not an option?
>
> On the TDM side, similarly you need something to classify on. If it was
> frame-relay encap you have some options - DLCI, etc
> On Tue, Oct 26, 2010 at 9:34 AM, Eric Van Tol <eric at atlantech.net<mailto:
> eric at atlantech.net>> wrote:
> Hi all,
> Probably a stupid question, but if I have an Ethernet-to-Ethernet or
> TDM-to-Ethernet P2P L2VPN, is there a way to classify the layer 3 traffic
> contained within it and schedule/queue based upon that traffic?  For
> instance, customer is running some voice across their L2VPN and they want to
> give strict priority to that traffic - is that possible?  I've been messing
> around some with the EXP rewrite rules and have yet to come up with a
> configuration that will rewrite the EXP bit using DSCP values.  My feeling
> is that it isn't going to work, because it's L2, after all, and I will be
> stuck with 802.1p values to work with, which won't really work for me.
>
> Thanks,
> evt
>
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