[j-nsp] juniper cisco switch interconnection

[Dale Shaw]

Hi Patrick,

On Tue, Dec 11, 2012 at 8:20 AM, Patrick Dickey <dickeypjeep at yahoo.com> wrote:
> Just a quick note: if you need multiple vlan STP (like what PVST+ has...),
> use VSTP on the Juniper. Ensure that VLAN 1 is on any trunk line between the
> Cisco and the Juniper. You don't need to have traffic there, but PVST+ uses
> VLAN 1 and VSTP will listen on VLAN 1 for STP information. If it's not
> configured, all kinds of strangeness occurs.

Your comment reminded me of some VSTP "strangeness" I'd seen previously.

Do you know if VSTP "wants" VLAN 1 even in a pure Juniper environment?
Or is this only required for Cisco PVST+ interop?

Cheers,
Dale