[j-nsp] Interconection of Logical Systems or Routing Instances

Giuliano Cardozo Medalha giulianocm at uol.com.br
Wed Oct 20 11:23:08 EDT 2010


  Thanks a lot Dave.

It works for me.


>
> Hi,
> You could do this...
>
> set logical-systems R1 interfaces lt-1/2/0 unit 1 encapsulation ethernet
> set logical-systems R1 interfaces lt-1/2/0 unit 1 peer-unit 2
> set logical-systems R1 interfaces lt-1/2/0 unit 1 family inet address 
> 100.100.100.1/24
>
> and then
>
> set logical-systems R2 interfaces lt-1/2/0 unit 2 encapsulation ethernet
> set logical-systems R2 interfaces lt-1/2/0 unit 2 peer-unit 1
> set logical-systems R2 interfaces lt-1/2/0 unit 2 family inet address 
> 100.100.100.2/24
>
> the secret sauce is in that "peer-unit" statement, which connects to 
> two logical interfaces
> together.  You can set the encapsulation to a few different types, 
> which is kind of fun.
>
> Here is a pointer so some (older) documentation, it's what came up in 
> a google search:
> http://www.juniper.net/techpubs/software/junos/junos70/swconfig70-interfaces/html/interfaces-tunnel-config4.html
>
> Disclaimer: I work for Juniper.
>
> HTHs,
> Dave
>
>
> On Oct 20, 2010, at 10:36 AM, Giuliano Cardozo Medalha wrote:
>
>> People,
>>
>> We have a M7i with built in Tunnel interface - 800 Mbps.
>>
>> We need to create a logical interface to interconnect the default 
>> logical system and a created one ... called R1.
>>
>> Router# set logical-systems R1
>>
>> We need to establish a BGP connection between the two logical systems 
>> using the logical interface.
>>
>> What is the best solution ?
>>
>> Use gr-1/2/0 interface
>>
>> or
>>
>> Use lt-1/2/0 interface ?
>>
>> When we try to use lt-1/2/0 ... the ip address does not appear in 
>> table inet.0 (stays with protocol down status)
>>
>> Can someone help me with this configuration ?  Is it possible ?
>>
>> Thanks a lot,
>>
>> Giuliano
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>



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