[j-nsp] Question about ISO and ISIS family

Felix Schueren felix.schueren at hosteurope.de
Wed Jul 28 20:10:21 EDT 2010


Luis,

> Hello ..
> I´m working with isis using iso addressing, so now when i see the routes in
> my EX  , it has the next:
> juniper at junex.cvie.mgmt.01# run show route
> 
> inet.0: 13 destinations, 13 routes (13 active, 0 holddown, 0 hidden)
> + = Active Route, - = Last Active, * = Both
> .......................
> .......................
> .......................
> 
>                       MultiRecv
> 
> iso.0: 2 destinations, 2 routes (2 active, 0 holddown, 0 hidden)
> + = Active Route, - = Last Active, * = Both
> 
> 49.77ff.0021.59cf.ebf0/72
>                    *[Direct/0] 03:11:44
>                     > via lo0.0
> 49.77ff.0021.59cf.ebf1/72
>                    *[Direct/0] 02:46:39
>                     > via lo0.0
> 
> 
> so, my question is, how can i export via ISIS ( the adjacencies to the other
> equipments are UP)  the  routes in the iso.0 table ?
> 

I don't quite understand what you are trying to do? Export to where?

In any case:
- Junos can only propagate ip(4 + 6) routes via IS-IS, you cannot use 
run an ISO addressing network with Juniper boxes
- the ISO addressing is just for link-local communications so IS-IS works
- iso.0 routes are local and cannot be exported in any way

By default, any IP routes which are associated with IS-IS-speaking 
interfaces will be in the IS-IS database (and propagated throughout the 
IS-IS network).

kind regards,

Felix

-- 
Felix Schüren
Head of Network

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