[j-nsp] IRB Interface Question

[quinn snyder]

isnt the bandwidth used as a metric placeholder for $routing_protocol?
 this is the significance in vendor 'c' land.

q.

-= sent via iphone. please excuse spelling, grammar, and brevity =-

On Sep 6, 2011, at 17:15, "Scott T. Cameron" <routehero at gmail.com> wrote:

> IRB is like RVI on Cisco.  It's a logical interface, and doesn't have a
> physical (bandwidth) limitation.
>
> I don't use NMS so can't speak on what you're seeing.  But I have 2x 1Gbps
> interfaces in LACP (ae1) bound to an IRB & 1x 10Gb.  show int irb ext shows
> only 1000 Mbps, but I think that's just a placeholder instead of having
> different show interface output.
>
> Scott
>
> On Tue, Sep 6, 2011 at 7:59 PM, Paul Stewart <paul at paulstewart.org> wrote:
>
>> Hi there...
>>
>>
>>
>> Been searching for an answer on this - can't find it.
>>
>>
>>
>> On an MX box we have an IRB interface that is physically made up of 4X1GE
>> interfaces.  I noticed our NMS platform reports the IRB interface itself as
>> 1000mbps and also the CLI reports the same:
>>
>>
>>
>> Logical interface irb.911 (Index 97) (SNMP ifIndex 384)
>>
>>   Description: xxxxxxxxx
>>
>>   Flags: SNMP-Traps 0x4004000 Encapsulation: ENET2
>>
>>   Bandwidth: 1000mbps
>>
>>   Routing Instance: xxxxxx Bridging Domain: xxxxxxx
>>
>>
>>
>>
>>
>> I presume that the IRB has no actual bandwidth limitation and that the only
>> limitation is the physical interfaces?  Can I set the bandwidth manually or
>> is this because the IRB has no real way to know what the bandwidth behind
>> it
>> is possible of doing?
>>
>>
>>
>> Thanks,
>>
>>
>>
>> Paul
>>
>>
>>
>>
>>
>>
>>
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