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  1. I have an interesting question - what happens if you have multiple VLANs running and you want to trunk all of them instead of just 1 VLAN? :crab:

  2. Hi Chris,

    This is no problem.

    H1:

    H1#
    interface GigabitEthernet0/1.100
     encapsulation dot1Q 100
     ip address 192.168.100.101 255.255.255.0
    

    H2:

    H2#
    interface GigabitEthernet0/1.100
     encapsulation dot1Q 100
     ip address 192.168.100.102 255.255.255.0
    

    And a ping:

    H1#ping 192.168.100.102  
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 192.168.100.102, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 8/9/12 ms
    

    Rene

  3. Hello Rene

    was going to CCIE written blue print…not able to find this 2 topic in l3vpn tunneling section
    please can you help or i am missing …
    4.1.h (i) MPLS-VPLS general principals
    4.1.h (ii) OTV general principals

  4. Hi Prashant,

    I just added something that explains MPLS/VPLS basics to 4.1.h.

    About OTV, In the Cisco Press book, there are only about 9 lines about it so it’s a minor topic for R&S written. That makes sense since it’s a DC topic. I don’t have a full lesson for this yet.

    OTV (Overlay Transport Virtualization) is an overlay network where we transport L2 Ethernet over an L3 network. OTV uses IS-IS for adjacencies and to exchange MAC info on the control plane.

    It is supported on IOS XE so I’ll see if I can lab this up.

    Rene

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