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  • 1.  Family mpls Or family ccc

    Posted 03-31-2014 23:01

    Dear Experts,

     

    What is the rule of configuring family MPLs, Family CCC when the encapsulations are of type VLAN-ccc or VLAN -ethernet? This is regarding provisioning of layer 2 and layer 3 VPN?

     

    Combination1

    interfaces {

        ge-1/1/2 {

            encapsulation ethernet-ccc;

            unit 0 {

                family ccc;

            }

     

    Combination2

     

     

    ge-1/0/1 {
    mtu 4474;
    unit 0 {
    description TO_Aggregate Router_ge-2/0/0_LINK_2;
    family inet {
    address 220.224.148.9/30;
    }
    family mpls;



  • 2.  RE: Family mpls Or family ccc

    Posted 04-02-2014 06:08

    Hello,

    For L2circuits (equivalent CSCO term is AToM) and Kompella L2VPN, "family ccc" is required on CE-facing interfaces to work.

    For L2circuits and Kompella L2VPN, "family mpls" is required on core-facing interfaces to work.

    For L2circuits and Kompella L2VPN, "protocols mpls interface BLAH" is required for core-facing interfaces to work.

    I suggest You familiarise Yourself with CCC concept bearing in mind JUNOS had CCC for a while before L2circuits got standardised.

    Start here http://www.juniper.net/techpubs/en_US/junos12.2/topics/concept/interfaces-circuit-and-translational-cross-connects-overview.html and all the links on the right hand side, please.

    HTH

    Thanks
    Alex



  • 3.  RE: Family mpls Or family ccc

    Posted 04-04-2014 01:38

    Hi,

     

    Thanks for your reply.

     

    When we configure VLAN-CCC , does that mean it is  tunneling a VLAN frame? For example PE router may receive a  tagged or untagged  frame from the CE , will the statement VLAN-CCC always add a VLAN number (Service provide VLAN to it ?

     

    Regards

    Ranjeet



  • 4.  RE: Family mpls Or family ccc
    Best Answer

    Posted 04-04-2014 02:44

    Hello,

     

    @ranjeetba wrote:

    Hi,

     

    Thanks for your reply.

     

    When we configure VLAN-CCC , does that mean it is  tunneling a VLAN frame?

     

    Partially. Valid 802.1q-tagged frame less FCS is tunneled/encapsulated in MPLS after it is received on VLAN-CCC interface. Certain control frames (i.e. LACP) are not tunneled if VLAN-CCC interface has these protocols enabled.

     

    @ranjeetba wrote:

    Hi,

     

     For example PE router may receive a  tagged or untagged  frame from the CE , will the statement VLAN-CCC always add a VLAN number (Service provide VLAN to it ?


    No. Plain VLAN-CCC does NOT add any extra/remove any tags. You have to specifically configure VLAN maps to add/remove 802.1Q tags.

    HTH

    Thanks
    Alex