IS-IS, not exchanging update

qplayedqplayed Member Posts: 303
I've got 2 routers runnning is-is but i'm not exchanging updates for some reason

here's a snippet of the config

R1
router isis
net 45.0001.xxxx.xxxx.xxxx.xxxx.00
is-is metric 25

R2
net 45.0001.xxxx.xxxx.xxxx.xxxx.00
is-type level-1


can someone explain to me why?
If you cannot express in a sentence or two what
you intend to get across, then it is not focused
well enough.
—Charles Osgood, TV commentator

Comments

  • cisco_troopercisco_trooper Too many Member Posts: 1,441 ■■■■□□□□□□
    Make sure your net statements are unique for each of routers R1 and R2. Also make sure you have identified which interfaces on those routers are going to participate in ISIS with ip router isis


    Also check out http://www.techexams.net/forums/viewtopic.php?t=30423


    Best of luck. IS-IS is one of those topics that had my head in knots until I got the concepts down.
  • qplayedqplayed Member Posts: 303
    thanks ct..

    but my configs are almost similar to
    http://www.cisco.com/warp/public/97/isis-frint.html
    only real difference is that my net addresses start with 45.0001 instead of 49.0001
    is that the problem? also both routers are connected on the same switch
    and both routers have a net of 45.000.1 with unique sys-id(mac address)

    i was told that the routers are not in the same area? is that correct?

    there must be something i am not understanding...
    If you cannot express in a sentence or two what
    you intend to get across, then it is not focused
    well enough.
    —Charles Osgood, TV commentator
  • cisco_troopercisco_trooper Too many Member Posts: 1,441 ■■■■□□□□□□
    It is my understanding that if you choose to use the AFI identifier that it must be one of three values: 39 (country code), 47 (international code), or 49 (private). I haven't played with 39 or 47 but 49 signifies that you can choose your own ISO addressing scheme. So in short, I suspect 45 will be a problem for you.

    ISO Addressing was made to scale the globe, and it can be as complex as that suggests. Go with the simplest addressing scheme necessary to get the job done.

    I chose not to use the AFI in my ISO addresses and went with something similar to

    net 00.0000.0000.0001.00



    the first two 00 indicate the area. The follow 12 digits are the unique address, and the last two 00 are the NET.

    Good luck.
  • qplayedqplayed Member Posts: 303
    i figured it out :P
    i dug into it some more and i didn't realize i had an extra few bytes in the net address

    45.0001.0010.12A3.00C1.0010.00
    45.0001.0030.00B1.BD01.0120.00


    45.0001.0010 != 45.0001.0030

    2 totally different areas!

    tsk tsk ts ...details details.....more reading !
    If you cannot express in a sentence or two what
    you intend to get across, then it is not focused
    well enough.
    —Charles Osgood, TV commentator
  • cisco_troopercisco_trooper Too many Member Posts: 1,441 ■■■■□□□□□□
    qplayed wrote:
    i figured it out :P
    i dug into it some more and i didn't realize i had an extra few bytes in the net address

    45.0001.0010.12A3.00C1.0010.00
    45.0001.0030.00B1.BD01.0120.00


    45.0001.0010 != 45.0001.0030

    2 totally different areas!

    tsk tsk ts ...details details.....more reading !


    Just curious...is this working with the AFI of 45?
  • qplayedqplayed Member Posts: 303
    yes sir
    If you cannot express in a sentence or two what
    you intend to get across, then it is not focused
    well enough.
    —Charles Osgood, TV commentator
  • cisco_troopercisco_trooper Too many Member Posts: 1,441 ■■■■□□□□□□
    sweet. good to know. never tried it.
  • qplayedqplayed Member Posts: 303
    i actually did this on accident as I was reviewing some quizzes from CNAP and making
    a lab out of some questions.
    If you cannot express in a sentence or two what
    you intend to get across, then it is not focused
    well enough.
    —Charles Osgood, TV commentator
  • miller811miller811 Member Posts: 897
    What kind of devices are you testing ISIS on. I am at the point to run some labs for ISIS and it appears my gear will not run it.
    I don't claim to be an expert, but I sure would like to become one someday.

    Quest for 11K pages read in 2011
    Page Count total to date - 1283
  • dtlokeedtlokee Member Posts: 2,378 ■■■■□□□□□□
    miller811 wrote:
    What kind of devices are you testing ISIS on. I am at the point to run some labs for ISIS and it appears my gear will not run it.

    What gear are you using?
    The only easy day was yesterday!
  • miller811miller811 Member Posts: 897
    I have the following
    3 1720 routers
    1 831 router
    1 2620 router
    1 2610 router
    1 1605 router
    1 2524 router
    1 3640 router
    I don't claim to be an expert, but I sure would like to become one someday.

    Quest for 11K pages read in 2011
    Page Count total to date - 1283
  • cisco_troopercisco_trooper Too many Member Posts: 1,441 ■■■■□□□□□□
    Here is what I had used for the ISIS lab and configs.

    Don't know the state of the configs, but if you're interested...

    http://www.ipnetworksllc.com/routerconfigs/ISIS.zip
  • miller811miller811 Member Posts: 897
    Here is what I had used for the ISIS lab and configs.

    Don't know the state of the configs, but if you're interested...

    http://www.ipnetworksllc.com/routerconfigs/ISIS.zip

    Are you using dynamips, or real gear for the ISIS lab?
    I don't claim to be an expert, but I sure would like to become one someday.

    Quest for 11K pages read in 2011
    Page Count total to date - 1283
  • qplayedqplayed Member Posts: 303
    i'm using real gear :) used to use dynamips
    If you cannot express in a sentence or two what
    you intend to get across, then it is not focused
    well enough.
    —Charles Osgood, TV commentator
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