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    Tunnel Layer and Layer 3 Routing Interaction

    Modifications to the network model (e.g. tunnels, demands/flows, network elements, design options) usually require tunnels or flows to be rerouted. In IP/MPLSView, this rerouting occurs in the following order:

    • If you are in Layer 3 and a reroute is triggered, tunnels will be rerouted first, followed by demands/flows.
    • If you are in Tunnel Layer and a reroute is triggered, then only tunnels will be rerouted while in Tunnel layer. The moment you switch into Layer 3, however, the Layer 3 demands/flows will then be rerouted.

    Additional Information

    Table 1: Commands Modeled Using Affinity and Mask Feature


    Corresponding Cisco Commands

    Setting link attributes

    mpls traffic-eng attribute-flags attributes

    Setting tunnel affinity and mask

    tunnel mpls traffic-eng affinity affinity [ mask mask ]


    Corresponding Juniper Commands for the mpls protocol




    admin-groups {

    group-name 1;

    group-name 2;



    Selecting admin groups for a link

    interface interface name {

    admin-group [ group-name group-name ... ];


    Setting admin groups for a tunnel

    label-switched-path lsp-path-name {

    to address;


    primary path-name {

    admin-group {

    exclude [ group-name group-name ... ];

    include [ group-name group-name ... ];

    include-all [ group-name group-name ... ];

    include-any [ group-name group-name ... ];



    Modified: 2016-11-08