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Forums » CCIE Forums » CCIE Service Provider Technical » MDT Question
Latest post 07-06-2009 8:35 AM by ciscokid. 7 replies.
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  • 07-02-2009 12:47 PM

    MDT Question

    Reply Contact

    Hello

     

    I have one question:

     

    On my labs i see this error:

    %MDT-4-LBSRC : MDT [chars] uses source address [IP_address] from a non-loopback interface

    Explanation    The local peering interface used to set up MDT tunnel is not a loopback Interface. This may cause blackholes if the interface is in the outgoing list of the MDT group.

    Recommended Action    Change the configuration of bgp update-source and use a loopback interface as the local peering interface.

     

    but i configure all bgp session with update loopback,  is there some other way to do this?

     

    Regards.
    Filed under:
    • Post Points: 20

  • 07-02-2009 1:49 PM In reply to

    Re: MDT Question

    Reply Contact

    What is your BGP peering address? The connected interface or the loopback? 

    Darrell A. Escola, CCIE #23173 (R&S)
    B.Sc. Information Technology
    MCSE, MCDBA, MCSD, Linux+
    • Post Points: 20

  • 07-02-2009 1:56 PM In reply to

    Re: MDT Question

    Reply Contact

    Loopback interface
    • Post Points: 20

  • 07-02-2009 3:35 PM In reply to

    • Seba
    • Top 25 Contributor
    • Joined on 07-17-2008
    • Ireland
    • Expert
    • Points 3,680

    Re: MDT Question

    Reply Contact

    It is probably IOS "feature". Try adding:

    "bgp next-hop loopbackX"

    in VRF configuration.

    Cheers,

    Seba

    Sebastian Pasternacki

    CCIE #17541 RS/Sec/SP
    • Post Points: 35

  • 07-03-2009 6:37 AM In reply to

    Re: MDT Question

    Reply Contact

    Loopback also needs to be configured with pim sparse-mode

     

    Jon
    • Post Points: 20

  • 07-03-2009 6:41 AM In reply to

    Re: MDT Question

    Reply Contact

    loopback is configured with pim sparse mode
    • Post Points: 5

  • 07-06-2009 8:35 AM In reply to

    RE: MDT Question

    Reply Contact

    Loopback interface

     

    De: ccie-sp@ieoc.com [mailto:ccie-sp@ieoc.com] En nombre de DarrellEscola
    Enviado el: Thursday, July 02, 2009 3:54 PM
    Para: Allen, Ramses
    Asunto: Re: [CCIE SP] MDT Question

     

    What is your BGP peering address? The connected interface or the loopback? 




    Internetwork Expert - The Industry Leader in CCIE Preparation
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    • Post Points: 5

  • 07-06-2009 8:35 AM In reply to

    Re: MDT Question

    Reply Contact
    You may find sparse-mode has not been enabled on the loopback

    Thanks

    James

    Sent from my iPhone 3G

    On 03 Jul 2009, at 0:39, Seba <bounce-Seba@ieoc.com> wrote:

    It is probably IOS "feature". Try adding:

    "bgp next-hop loopbackX"

    in VRF configuration.

    Cheers,

    Seba




    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

    Kind regards

    James R. Yeo

    CCIE#11676 R&S+Security+Service Provider

     
    • Post Points: 5
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