From: Nitin Venugopal (nitinsworld@gmail.com)
Date: Mon Mar 16 2009 - 08:05:15 ART
Thanks Scott. The solution i was looking for is applying 'clns net command'
to interfaces
Say
R1---R2
R1
Int eth0/1
net clns 49.4001.XXXX.XXXX.XXXX.00
Int eth0/2
net clns 49.4001.XXXX.XXXX.XXXX.00
Although i can verify the associated net on the local router R1 using 'show
clns interface' command
However I am not sure how to verify the associated clns net . when the same
route is recieved on the R2 (whch recieves the route from R1)
Best Regard
Nitin
On Sun, Mar 15, 2009 at 11:17 PM, Scott Morris <
smorris@internetworkexpert.com> wrote:
> You can have a single process with multiple NETs (sys-ID must be the same
> for all). Or you can use multiple processes to separate.
>
> Under an interface, using "ip router isis (proc-name-called-'tag')" will
> separate things. Or under the process itself, using "passive-interface"
> will as well without enabling the process on the particular interface.
>
> HTH,
>
> Scott
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Nitin Venugopal
> Sent: Sunday, March 15, 2009 2:23 PM
> To: doubleccie@yahoo.com
> Cc: Fahad Khan; ccielab@groupstudy.com
> Subject: Re: ISIS multi-area
>
> Your Solution is fine. However as i told you, the question is you are not
> allowed to configure more than one isis process
> How will you bind an area with the Interface?
> Binding of ISIS process to specific interface is not allowed in the
> question
>
> Best Regards
> Nitin
> On Sun, Mar 15, 2009 at 8:44 PM, Peter Svidler <doubleccie@yahoo.com>
> wrote:
>
> > when you apply ISIS process with multiple NET command configured on
> > certain interface , all the Areas under this process will be assigned to
> > this interface ..in other words the router will be able to form adj with
> > neighbors if any of the areas are configured on the neighbor ( assuming
> L1
> > here since with Level2 the area matching is not a restriction )
> >
> > assume you have 3 routers R1 ----R2 ----R3 and assume all L1
> >
> >
> > R1 is area 1 , and R3 on area 3 , now on R2 you can configure two NET
> > command for A1 and A3 , apply the process on R2 both interfaces .
> >
> > you will be able in this case to form adj. wth both R1 and R3 , the
> > prefixes will be also leaked between the two areas .
> >
> >
> >
> >
> > --- On *Sun, 3/15/09, Nitin Venugopal <nitinsworld@gmail.com>* wrote:
> >
> > From: Nitin Venugopal <nitinsworld@gmail.com>
> > Subject: Re: ISIS multi-area
> > To: doubleccie@yahoo.com
> > Cc: "Fahad Khan" <fahad.khan@gmail.com>, ccielab@groupstudy.com
> > Date: Sunday, March 15, 2009, 8:40 AM
> >
> >
> > Even if you apply multiple net under single process, how will you know
> > which interface is part of which area- Unless you bind the area with the
> > Interface.
> >
> > ISIS process can be binded with specific interface , but you are not
> > allowed to add more isis process
> >
> > Regds
> > Nitin
> >
> > On Sun, Mar 15, 2009 at 4:34 PM, Peter Svidler
> <doubleccie@yahoo.com>wrote:
> >
> >> the trick in my question was that i was expecting the command to look
> >> like
> >> redistribute isis (tag) ip level-2 into level-1 distrbuite-list 100
> >>
> >>
> >> however the ( tag ) is not required , probably because you can run only
> >> one level 2 process on the router but not sure .
> >>
> >>
> >> to comment on your answer , L1 router can accept redistribution from
> >> level2 (typically this redistibution will be on L1/2 router ) , the
> prefixes
> >> will appear as IA in the L1 router
> >>
> >> to run multi-area on single interface , you have to put multiple NET
> >> commands under the same process , this scenarios is used for migration
> >> purposes .
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> --- On *Sun, 3/15/09, Nitin Venugopal <nitinsworld@gmail.com>* wrote:
> >>
> >> From: Nitin Venugopal <nitinsworld@gmail.com>
> >> Subject: Re: ISIS multi-area
> >> To: "Fahad Khan" <fahad.khan@gmail.com>
> >> Cc: "Peter Svidler" <doubleccie@yahoo.com>, ccielab@groupstudy.com
> >> Date: Sunday, March 15, 2009, 6:15 AM
> >>
> >>
> >> FYI-L1 is NSSA (eq OSPF) by default
> >> ie it allows redistribtion, if it was totally stubby it wont allow
> >> redistribution
> >> L1 only intraarea
> >> L2 can be Inter Area or Intra Area
> >> L1/L20 is like ABR in OSPF
> >>
> >> i have one question. How can you have multiple interface be part of
> >> different ISIS area's . But with single ISIS process.
> >>
> >> *Say R1 *
> >> Eth 0/0 to be part of 49.4004 and Eth 0/1 be part of 49.4008. But only
> one
> >> process allowed is on the router 'router isis 10'
> >> And how will you differentiate which interface is part of which area?
> >>
> >> Regds
> >> Nitin
> >>
> >>
> >>
> >> On Sun, Mar 15, 2009 at 2:03 PM, Fahad Khan <fahad.khan@gmail.com>
> wrote:
> >>
> >> > I am sure you are talking about route leaking, since areas having L1
> >> > routers
> >> > are totally stubby by default. So you need to have route leaking
> >> configured
> >> > to inject specific L2 routes.
> >> >
> >> > You do it by
> >> >
> >> > redistribute isis ip level-2 into level-1 distribute-list <list
> >> defining L2
> >> > specific routes>
> >> >
> >> > regards,
> >> >
> >> > On Sun, Mar 15, 2009 at 11:40 AM, Peter Svidler <doubleccie@yahoo.com
> >> > >wrote:
> >> >
> >> > > Guys ,
> >> > >
> >> > > is it possible on a router that is running multiple instances of
> >> ISIS to
> >> > > redistribute one into another ?
> >> > >
> >> > > assume i have router with one process L2 and another process L1 , i
> >> want
> >> > to
> >> > > redistribute the L2 process into the L1 process so that the
> >> downstream
> >> > sees
> >> > > the explicit route ...however when i try redistribution under the
> >> ISIS
> >> > L1
> >> > > process i get Unrecognized command !!!! is this even possible (
> seems
> >> yes
> >> > )
> >> > > but what am i missing here? ( AREA1 is created already )
> >> > >
> >> > > router isis
> >> > >
> >> > > R1(config-router)#redistribute isis ?
> >> > > WORD ISO routing area tag
> >> > > ip Redistribution of IP routes between levels
> >> > > !(config-router)#redistribute isis AREA1 ?
> >> > > % Unrecognized command
> >> > >
> >> > >
> >> > >
> >> > >
> >> > > anyone sees something similar ?
> >> > >
> >> > >
> >> > >
> >> > >
> >> > >
> >> > > Blogs and organic groups at http://www.ccie.net
> >> > >
> >> > >
> >> _______________________________________________________________________
> >> > > Subscription information may be found at:
> >> > > http://www.groupstudy.com/list/CCIELab.html
> >> > >
> >> > >
> >> > >
> >> > >
> >> > >
> >> > >
> >> > >
> >> > >
> >> >
> >> >
> >> > --
> >> > Muhammad Fahad Khan
> >> > IT Specialist
> >> > Global Technology Services, IBM
> >> > +92-321-2370510
> >> > +92-301-8247638
> >> > http://www.linkedin.com/in/muhammadfahadkhan
> >> > http://fahad-internetworker.blogspot.com
> >> >
> >> >
> >> > Blogs and organic groups at http://www.ccie.net
> >> >
> >> >
> _______________________________________________________________________
> >> > Subscription information may be found at:
> >> > http://www.groupstudy.com/list/CCIELab.html
> >>
> >>
> >> Blogs and organic groups at http://www.ccie.net
> >>
> >> _______________________________________________________________________
> >> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
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