[j-nsp] instance-specific filters for VPLS BUM/flood filtering

[Saku Ytti]

On (2012-11-05 10:44 +0100), Sebastian Wiesinger wrote:

> And there I'm missing a instance-specific knob. The only reference I
> find to "instance-specific" is this:
> 
> | To enable this higher precedence on BPDU packets, an instance-specific
> | BPDU precedence filter named default_bpdu_filter is automatically
> | attached to the VPLS DMAC table

Your questions is valid. For interfaces you need 'interface-specific' so
that policers in filter are not shared.

However for some reason, in VPLS routing-instance forwarding-options the
filter policers are instance-specific, so if your policer says 5Mbps, each
instance where it is applied gets 5Mbps. Tested in MX960 11.4R5. I don't
quite understand why it is like this, or where it is documented.

I would have expected they are shared. As if you use forwarding-options
filters to limit IP options, and apply same filter to main instance and
routing-instances, then the policer is shared, so 5Mbps IP options is
shared amongst all routing-instances and global instance. Tested in 10.4R2
or so.

Does not seem consistent, and I fear if it is intended feature or not, as
I've not found documentation.

-- 
  ++ytti