[j-nsp] IRB Interface Question

[Scott T. Cameron]

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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