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    Creating a Connectivity File for Multihomed Groups

    The connectivity file can include one or more multihomed groups. Each multihomed group defines an access switch that is connected to one primary PE device and one or more backup PE devices.

    The following requirements must be met before you create a connectivity file for a multihomed group:

    • Perform device discovery to import the N-PE devices that you want to include in the multihomed group.
    • Pre-stage the N-PE devices that you want to include in the multihomed group.

    You must create an XML file to define connectivity for the PE devices in a multihomed group. You can specify any name for the connectivity file, but it must be a valid XML file that includes the following attributes:

    • Name—Multihomed group name.
    • Description—Multihomed group description.
    • AccessSwitchIP—IP address for the CE device.
    • PEHostName—Hostname for the N-PE device. Include two or more hostnames to identify the primary and secondary PE devices in the multihomed group.

      Note: By default, the first PEHostname specifies the primary device.

    • PEInterface—UNI on the N-PE device that connects to the CE device. Each multihomed group must specify the interface for the primary and secondary PE devices.
    • AccessSwitchInterface—UNI on the CE device that connects to the primary or secondary PE device.

    The following sample XML file shows the format you use to configure multihomed groups:

    <!— List of unmanaged connections for an Access Switch not currently modeled in Junos Space
         <MultihomedGroup Name="group1" Description="multihomed group1" AccessSwitchIP="">
              <MultihomedEndPoint PEHostName="PEHostName1" PEInterface="ge-2/0/1" AccessSwitchInterface="ge-1/0/4"/>
              <MultihomedEndPoint PEHostName=”PEHostName2” PEInterface=”ge-2/0/2” AccessSwitchInterface=”ge-1/0/5"/>
         <MultihomedGroup Name="group2" Description="multihomed group2" AccessSwitchIP="">
              <MultihomedEndPoint PEHostName="PEHostName3" PEInterface="ge-2/0/1" AccessSwitchInterface="ge-1/0/4"/>
              <MultihomedEndPoint PEHostName=”PEHostName4” PEInterface=”ge-2/0/2” AccessSwitchInterface=”ge-1/0/5"/>
              <MultihomedEndPoint PEHostName=”PEHostName5” PEInterface=”ge-3/0/2” AccessSwitchInterface=”ge-1/0/6"/>

    In the preceding sample connectivity file, the first multihomed group, multihomed group1, defines two PE devices in which PEHostName1 is the primary PE device and PEHostName2 is the backup PE device. The second multihomed group, multihomed group2, defines two PE devices in which PEHostName3 is the primary PE device and PEHostName4 and PEHostName5 are backup PE devices.

    To view a sample connectivity file for multihomed groups, see Viewing a Sample Connectivity File for Multihomed Groups.

    Modified: 2017-01-19