[j-nsp] Routing-instances

[Leigh Porter]

They are also used for filter based forwarding.
i.e.

You match packets to port 80 and have a routing instance with a default 
route pointing to your transparent WWW cache, when the filter sees a 
datagram matching your filter instead of using the normal inet.0 routing 
table you can tell it to use a different routing table to select a route 
from for that datagram.

Or say you have two upstream ISP connections, you can decide what ISP to 
send traffic to based on a filter and have each ISP with a different 
routing instance, I think this is the example used in the Juniper docs.

Juniper routing instances can have their own routing protocol instances  
also, I believe.

--
Leigh


Erdem Sener wrote:
> Hello,
>
>  Well, basically the routing-instances are routing tables besides the
> default inet.x and might be used for things like source-based routing,
> MPLS/VPLS configuration etc.
>
>  By configuring a routing-instance you might be defining a VRF table,
> a VPLS domain or just a routing table you can use for source-based
> routing.
>
> HTH
> --
> Erdem
>
>
>
> On 9/20/06, Christian Koch <ckoch at globix.com> wrote:
>   
>> Can anyone explain to me exactly what "routing-instances" are?
>>
>> Thanks!
>>
>>
>>
>> ______________________________
>> Globix Network Operations / AS4513
>> NOC: 212-625-7777 / 800-2-GLOBIX
>> support at globix.com / www.globix.com
>>
>>
>> _______________________________________________
>> juniper-nsp mailing list juniper-nsp at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/juniper-nsp
>>
>>     
> _______________________________________________
> juniper-nsp mailing list juniper-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/juniper-nsp
>