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MX Q-in-Q With Multiple Inner Tags not working

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  • 1.  MX Q-in-Q With Multiple Inner Tags not working

    Posted 06-16-2017 12:16

    I am trying to build an interface that sends 3 seperate VLANs inside an outer tag across the network.  One of the logical units is a Layer3 IP interface and the other 2 are bridged VLANs.  Using the below config, the Layer3 Interface passes traffic and then only 1 or the other (whichever one I build first) of the bridged units will pass traffic.  How can this config be modified so all 3 VLANs pass traffic at the same time?

     

    MX480

    user@FTMY-T3-EDGE-01> show configuration interfaces ge-2/3/0 
    description "--- UPLINK TO NNI ---";
    flexible-vlan-tagging;
    mtu 9192;
    encapsulation flexible-ethernet-services;
    
    unit 1276 {
        vlan-tags outer 1176 inner 1276;
        family inet {
            address 63.247.145.69/30;
        }
    }
    unit 11767 {
        encapsulation vlan-bridge;
        vlan-tags outer 1176 inner 127;
    }
    unit 11769 {
        encapsulation vlan-bridge;
        vlan-tags outer 1176 inner 999;
    }
    user@FTMY-T3-EDGE-01> show configuration bridge-domains 
    VLAN-127 {
        description T3-VOIP;
        vlan-id 127;
        interface ge-2/3/0.11767;
        interface ge-x/x/x.127;
    }
    VLAN-999 {
        description T3-CUST-MGMT;
        vlan-id 999;
        interface ge-2/3/0.11769;
        interface ge-x/x/x.999;
    }

    Again, in the above config I can ping across unit 1276, but I can only ever ping across either 999 or 127 and not both when enabled at the same time.  How can I configure this better so it will work?

     



  • 2.  RE: MX Q-in-Q With Multiple Inner Tags not working
    Best Answer

    Posted 06-20-2017 13:17

    I finally solved this on my own.  I combined the two bridged inner vlans 127 & 999 on a trunk interface with the inner-vlan-id-list.  This is the config that works:

     

    user@FTMY-T3-EDGE-01# show interfaces ge-2/3/0 
    flexible-vlan-tagging;
    mtu 9192;
    encapsulation flexible-ethernet-services;
    unit 1176 {
        vlan-id 1176;
        family bridge {
            interface-mode trunk;
            inner-vlan-id-list [ 127 999 ];
        }
    }
    unit 1276 {
        vlan-tags outer 1176 inner 1276;
        family inet {
            address 63.247.145.69/30;
        }
    }
    

    If anyone has any better methods, please feel free to reply.

    Thanks!