[j-nsp] Good practice for EX-series interface config management

Michel de Nostredame d.nostra at gmail.com
Tue Nov 2 17:58:40 EDT 2010

On Tue, Nov 2, 2010 at 2:31 PM, Dale Shaw <dale.shaw+j-nsp at gmail.com> wrote:
> Hi all,
> I'm curious about what people have found is the best way to manage
> interface configurations on EX-series devices. There are a number of
> ways to apply configuration to interfaces -- direct to each interface,
> using interface-ranges etc.
> We've been burnt a couple of times with people making adjustments to
> interface-ranges and not paying close enough attention to the net
> effect of their change (e.g. leaving out all interfaces on a switch).
> Direct application of config to interfaces, while precise, kind of
> feels 'wrong' as JUNOS provides more elegant ways to achieve the same
> end result. Maybe in carefully planned, static environments where
> access port VLAN assignments and other port specific configs rarely
> change, interface-ranges are more workable. Or maybe we're just doing
> it wrong.
> I'm hoping that this sparks some discussion. What works best for you?
> Cheers,
> Dale

We use apply group to manage EX interfaces.

In case we change settings in a specific group, it will only affect
those member interfaces who explicitly have the group configed.


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