Notable Replies

  1. Hi Zeeshan,

    In an MPLS PE-CE scenario, you can use IGPs or BGP. Even static routes are possible.


  2. Hi Rene.
    Will you please advise me how do I advertise loopback I/F of PE1 to CE1?
    I have added

    PE1(config)#router rip
    PE1(config-router)#address-family ipv4 vrf CUSTOMER
    PE1(config-router-af)#version 2
    PE1(config-router-af)#no auto-summary 
    and even
    **PE1(config-router-af)#redistribute connnected**

    It seems the PE1 are not advertise its loopback to CE1.

  3. Hello Shang

    This behaviour is normal. Not only that, it is actually desired. The whole purpose of the MPLS Layer 3 VPN is to be able to create a transparent MPLS VPN between the two CE routers as if they are directly connected to each other. You’ve configured the Loopback to participate in the RIP routing, but you’ve also configured the ip vrf forwarding CUSTOMER VRF on the customer facing Fa0/0 interface and the mpls ldp autoconfig on the network facing interface. This will cause all additional network interfaces to be “inside the VPN” and not visible to the RIP process.

    I hope this has been helpful!


  4. Hello lagapides
    Thank you for your kindly explaination.
    I also find some hint in the next few lessons.

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