[j-nsp] MX: Hardware-Down for an irb logical unit
bdale at comlinx.com.au
Tue Apr 28 20:21:11 EDT 2015
On 29 Apr 2015, at 9:32 am, Chuck Anderson <cra at WPI.EDU> wrote:
> What would cause an irb logical interface unit to stay in
> "Hardware-Down"? I'm using identical configs on 4 different routers
> (different IPs of course), and one of them won't come up. There is at
> least one physical interface in the BD that is up. The irb physical
> interface is up. There are many other irb logical units that are up
> and working fine, just this one unit that is down.
This is usually caused because there are no physical interfaces up in the bridge-domain.
I notice you've got an aggregated-ethernet interface in there - if you have LACP enabled, but no LACP partner, the physical link will stay up, but the logical interface will go down, thus taking down your IRB as well.
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