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Forums » CCIE Forums » CCIE Service Provider Technical » L2 VPN precedence traffic
Latest post 11-09-2009 11:30 AM by kevin. 3 replies.
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  • 11-08-2009 6:15 AM

    L2 VPN precedence traffic

    Reply Contact

    If task says to set precedence value on Layer 2 VPN (L2TPv3) packets ,where it should be done : on PE routers forming tunnel or CE routers sending packets between themselfs?

    So basically is it done in pseudowire-class sub-mode on PEs  or via policy-maps on CE routers?

     
    • Post Points: 35

  • 11-08-2009 8:45 PM In reply to

    Re: L2 VPN precedence traffic

    Reply Contact

    Hi Nizami,

     

    on PE router you can do via IP tos value or via policy map on interface.

     

    Avinash

     

     

    nizami:

    If task says to set precedence value on Layer 2 VPN (L2TPv3) packets ,where it should be done : on PE routers forming tunnel or CE routers sending packets between themselfs?

    So basically is it done in pseudowire-class sub-mode on PEs  or via policy-maps on CE routers?

     

    Avinash
    • Post Points: 5

  • 11-09-2009 3:39 AM In reply to

    Re: L2 VPN precedence traffic

    Reply Contact
    Yes on 12.2S etc but later Ios has " set ip dscp tunnel " 

    Sent from my iPhone 3G

    On 08 Nov 2009, at 9:19, nizami <bounce-nizami@ieoc.com> wrote:

    If taks says to set precedence value on Layer 2 VPN (L2TPv3) packets ,where it should be done : on PE routers forming tunnel or CE routers sending packets between themselfs?

    So basically is it done in pseudowire-class sub-mode on PEs  or via policy-maps on CE routers?

     




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    Kind regards

    James R. Yeo

    CCIE#11676 R&S+Security+Service Provider

     
    • Post Points: 20

  • 11-09-2009 11:30 AM In reply to

    Re: L2 VPN precedence traffic

    Reply Contact
    pseudowire-class L2
     encapsulation l2tpv3
     ip tos value 1

    You would do it on the PE. Or there is  reflect option which would copy the original packet TOS into the headers

    Regards
    Kevin

    On Mon, Nov 9, 2009 at 11:43 AM, ciscokid <bounce-ciscokid@ieoc.com> wrote:
    Yes on 12.2S etc but later Ios has " set ip dscp tunnel " 

    Sent from my iPhone 3G

    On 08 Nov 2009, at 9:19, nizami <bounce-nizami@ieoc.com> wrote:

    If taks says to set precedence value on Layer 2 VPN (L2TPv3) packets ,where it should be done : on PE routers forming tunnel or CE routers sending packets between themselfs?

    So basically is it done in pseudowire-class sub-mode on PEs  or via policy-maps on CE routers?

     




    Internetwork Expert - The Industry Leader in CCIE Preparation
    http://www.internetworkexpert.com

    Subscription information may be found at:
    http://www.ieoc.com/forums/ForumSubscriptions.aspx



    Internetwork Expert - The Industry Leader in CCIE Preparation
    http://www.internetworkexpert.com

    Subscription information may be found at:
    http://www.ieoc.com/forums/ForumSubscriptions.aspx
    • Post Points: 5
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