[j-nsp] Interconnecting logical routers via FPC3-E

[Erdem Sener]

Hi,

 AFAIK lt- interfaces are treated like any other interface from a
firewall/policer and CoS perspective; e.g:

unit 0 {
    encapsulation ethernet;
    peer-unit 1;
    family inet {
        policer {
            input policer_500meg;
            output policer_500meg;
        }
        address 12.12.12.1/30;
    }
}

router> show interfaces lt-11/3/0.0 extensive | match policer
      Policer: Input: policer_500meg-lt-11/3/0.0-inet-i, Output:
policer_500meg-lt-11/3/0.0-inet-o

Furthermore, in a MX platform, you can use a port in 'tunnel services'
mode (without requiring
a services (tunnel, AS, MS) PIC, where you can also specify the
bandwitdh, such as:

erdem at mx-re0# show chassis
redundancy {
    failover {
        on-loss-of-keepalives;
    }
    graceful-switchover;
}
routing-engine {
    on-disk-failure disk-failure-action reboot;
}
fpc 11 {
    pic 3 {
        tunnel-services {
            bandwidth 10g; #### this is a 10gig ethernet port
        }
    }
}

erdem at mx-re0# set chassis fpc 11 pic 3 tunnel-services bandwidth ?
Possible completions:
  1g                   1 gigabit per second <<<<<< you may choose to
use it as a 1gig 'tunnel' interface.
  10g                  10 gigabits per second

This would effectively create interfaces such as vt-11/3/0, lt-11/3/0,
gr-11/3/0, mt-11/3/0 etc.

HTH,
Erdem


On Sat, Apr 18, 2009 at 5:22 PM, Stacy W. Smith <stacy at acm.org> wrote:
> There are different Tunnel PICs depending upon the type of FPC in which they
> are being installed. Each of these offer differing amounts of tunnel
> bandwidth. The PB-TUNNEL is for Type 3 FPCs and is inherently limited to
> 10Gbps of tunneling bandwidth. See page 3 of
> http://www.juniper.net/us/en/local/pdf/datasheets/1000092-en.pdf for more
> details.
>
> I'm pretty QOS illiterate, so I don't know if you might be able to apply
> policers to lt interfaces to further limit the bandwidth. Maybe someone else
> can comment on this.
>
> --Stacy
>
>
> On Apr 18, 2009, at 3:44 AM, Robert Kern wrote:
>
>> Hi Stacy,
>>
>> thanks for answer. Is there a way to limit the traffic between
>> logical-routers to 10Ge for example and what is the bandwidth limitation for
>> a tunnel between LRs.
>>
>> Regards,
>>
>> Robert
>>
>> On Sat, Apr 18, 2009 at 7:29 AM, Stacy W. Smith <stacy at acm.org> wrote:
>>
>> On Apr 17, 2009, at 10:57 PM, Robert Kern wrote:
>>
>> Hi Guys,
>>
>> I have a question about interconnection logical-routers on M320 via
>> FPC3-E.
>> Interconnection should be internal (not via physical ports) and limited to
>> 10Ge for example.
>>
>> What kind of configuration do I need for such logical connection - I
>> belive
>> no other HW is needed for that.
>>
>> Tnx for answers.
>>
>> Robert
>>
>> You need a logical tunnel (lt) interface. That requires either a tunnel
>> PIC, AS PIC, or MS PIC.
>>
>> Assuming you have an lt interface, the configuration looks like this:
>>
>> logical-systems {
>>   R11 {
>>       interfaces {
>>           lt-1/1/0 {
>>               unit 2 {
>>                   description "R11 LR to Default LR on unit 1";
>>                   encapsulation vlan;
>>                   vlan-id 1;
>>                   peer-unit 1;
>>                   family inet {
>>                       address 192.168.21.6/30;
>>                   }
>>               }
>>           }
>>       }
>>   }
>> }
>> interfaces {
>>   lt-1/1/0 {
>>       unit 1 {
>>           description "Default LR to R11 LR on unit 2";
>>           encapsulation vlan;
>>           vlan-id 1;
>>           peer-unit 2;
>>           family inet {
>>               address 192.168.21.5/30;
>>           }
>>       }
>>   }
>> }
>>
>> --Stacy
>>
>>
>
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