Sprint - MPLS & VPN

Discussion in 'Cisco' started by Phil Schuman, Aug 8, 2006.

  1. Phil Schuman

    Phil Schuman Guest

    hi -
    Just catching up since we rolled out Frame Relay several years ago.
    With something like Sprint's MPLS offering,
    what is required in the router to connect and support a MPLS network.
    I can see how the firmware must be upgraded
    to understand the new tags used by MPLS.
    But why does it seem that MPLS and VPN are mentioned together,
    and yet we didn't need a VPN when using our Frame network.

    Any other considerations for migrating from a Frame network
    up to a MPLS network ?

    Also - I didn't see a MPLS newsgroup, but there was an old Frame group.
    Phil Schuman, Aug 8, 2006
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  2. Phil Schuman

    stephen Guest

    The MPLS tags dont normally get to your routers - they are within the
    carrier cloud, and are there to let the telco use a common backbone for lots
    of different customers.

    A lot of MPLS services support more modern types of QoS etc - but there is
    no real reason you need up to the minute code versions. MPLS has been around
    for several years now, so obviously worked with IOS releases current when it
    1st came out.
    I dont know what Sprint do specifically, but it is common practice for some
    carriers to use Frame Relay encap between PE and CE router - ie on the link
    from customer site to the carrier cloud.

    So - in theory Sprint could swap you from F/R to MPLS, and all you need is
    some changes to the config on the routers.

    We use it at work because you can use multiple PVCs to carry different VRFs
    to give multiple logical VPNs on 1 access link.
    A specific customer F/Relay set of PVCs and ports sort of make up a layer 2
    cloud. They didnt call it a VPN as that wasnt the "in vogue" term at the
    time :).
    One advantage of MPLS is alternate access link support - Ethernet at
    10/100/1000 Mbps for example.

    QoS is pretty much standard (although usually with some extra costs), and
    other things such as multicast, IP voice breakout in the cloud, Internet
    feeds and hosting integration all come up frequently.

    Multiple VPNs can be useful e.g. to segregate a live and test network, or
    internal net and an extranet, but without needing separate access lines.

    I suggest you start writing down requirements without worrying about MPLS
    capabilities and then check how closely the carrier services map to that.
    stephen, Aug 8, 2006
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  3. Phil Schuman

    Phil Schuman Guest

    tnx for the update -
    MPLS tags -> was using that as a generic term for the Frame PVC/LMI
    and VPN now is just a PVC with encryption :) for all the HIPAA, SOX, etc
    Phil Schuman, Aug 9, 2006
  4. Hi Phil,

    You may wish to investigate Cisco's extremely active and robust:

    MPLS Newsgroup


    Found at Cisco Systems Technical Forums:


    Hope this helps.

    Brad Reese
    BradReese.Com - Cisco Power Supply Headquarters
    1293 Hendersonville Road, Suite 17
    Asheville, North Carolina USA 28803
    USA & Canada: 877-549-2680
    International: 828-277-7272
    Fax: 775-254-3558
    AIM: R2MGrant
    BradReese.Com - Cisco Jobs
    www.BradReese.Com, Aug 9, 2006
  5. Phil Schuman

    cri-tter Guest

    mpls is within the carrier cloud is correct;
    one advantage of this type of typology is the
    any to any connectivity, vs a hub and spoke type of typology.
    this allows better use of a network to roll out
    services such as voip.

    cri-tter, Aug 9, 2006
  6. Phil Schuman

    Phil Schuman Guest

    We are migrating from an existing Frame network to a MPLS network,
    along with upgrading our current 2501 and 1600 routers to 2801 -
    Phil Schuman, Aug 9, 2006
  7. www.BradReese.Com, Aug 10, 2006
  8. Phil Schuman

    Phil Schuman Guest

    Phil Schuman, Aug 10, 2006
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