Certifications

Expand all | Collapse all

ISO addressing in IS-IS

  • 1.  ISO addressing in IS-IS

     
    Posted 02-23-2018 04:40

    Hi All,

     

    Can anyone explain about iso addresing. For instance,

    Router 1 and Router 2 are directly connected and in the same area. According to following info, Which configuration must be set on R2 to form a Level1 IS-IS adjacency with R1?

     

    Is iso address on the router 2 is 39.0001.3414.0010.0250.0000.0056.00 or

    39.0001.3415.0010.0250.0000.0056.0?

     

    R1:

    lo0:10.250.0.55

    Instance:Master

    Router ID:10.250.0.55

    Hostname:R1

    Sysid:0250.0000.0055

    Areaid:39.0001.3414.0010

    ......

    ........

    R2:

    lo0:10.250.0.46

     

    ......

    ........



  • 2.  RE: ISO addressing in IS-IS

     
    Posted 02-23-2018 04:47

     

    Your area id should be same in order to have L1 ISIS adjacency.

     

    For a router to support IS-IS, you must configure an ISO network entity title (NET) address on one of the router’s interfaces, preferably the loopback interface

    https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/iso-address.html

     

     

     

     

     



  • 3.  RE: ISO addressing in IS-IS

     
    Posted 02-23-2018 04:58

     

    For instance, R1 is connected to R2.

    This is config will maintain only Level 1 adjancey between the two.

     

    Router1
    set interfaces fe-1/2/0 unit 0 description to-R2
    set interfaces fe-1/2/0 unit 0 family inet address XX.0.0.X/30
    set interfaces fe-1/2/0 unit 0 family iso
    set interfaces lo0 unit 0 family inet address X.X.X.X/32
    set interfaces lo0 unit 0 family iso address 49.002.0192.0168.0006.00
    set protocols isis interface fe-1/2/0.0 level 2 disable
    set protocols isis interface lo0.0 level 2 disable

     

    Router2
    set interfaces fe-1/2/0 unit 0 description to-R1
    set interfaces fe-1/2/0 unit 0 family inet address XX.0.0.X/30
    set interfaces fe-1/2/0 unit 0 family iso
    set interfaces lo0 unit 0 family inet address X.X.X.X/32
    set interfaces lo0 unit 0 family iso address 49.002.0192.0168.0007.00
    set protocols isis interface fe-1/2/0.0 level 2 disable
    set protocols isis interface lo0.0 level 2 disable