[j-nsp] General MX notes for use as a core ethernet switch...

[Rubens Kuhl Jr.]

On Mon, Aug 18, 2008 at 10:12 PM, Derick Winkworth <dwinkworth at att.net> wrote:
> Fiddling with the MX for a POC-like session, I found a couple of things
> others may find interesting...
>
> 1) On etherchannel bundles, traffic is distributed per destination-mac, per
> source-mac, or both.  Unfortunately, this is not configurable on a per-link
> basis, only globally.  So, for us, this means we will be using both...
>
> "forwarding-options hash-key family multiservice ..."

No option to distribute by src/dst IP, TCP/UDP src/dst port, MPLS label ?



> 2) On an IRB interfaces, there is the annoying requirement of specifying a
> layer-2 interface in a static arp definition.  This annoying requirement
> remains true even in the case of a multicast-mac.  For some reason,
> configuring static ARP means the MX can't learn that MAC address... which is
> highly inconvenient when you need to use a multicast MAC address (like
> active/active multicast mac firewall configurations).

Kinda like port-security ?

> 3) To be 100% compatible with Cisco's PVST+, you need to use "force-version"
> and make sure you are configured for STP and not rapid-pvst...

Any references whether this is the case with EX-series ?


Rubens