[c-nsp] Catalyst Blade Switch 3012 inband management?

[Peter Rathlev]

Pardon my ignorance, but we've recently inherited a bunch of
WS-CBS3012-IBM-I bladecenter switches, and I can't really grasp the
management interface concept. All our other bladecenter switches are
CIGESM with a regular interface Vlan marked as "management-interface",
and even though I don't like this at least it works.

These CBS-switches have no "management-interface" commands; the IP
address assigned from the bladecenter management module ("AMM") sticks
to a "Fa0" interface, not what I intend to use for management (Vlan2).

We have no problem configuring "inband" management as such, but every
time someone edits and saves the AMM configuration the default-gateway
is overwritten. I know of "protected mode" but the paperwork involved in
getting permission to enable this means I'm looking at alternatives.

We can't configure the AMM interface with the real default gateway since
this address is outside the Fa0-assigned net.

Is there some way of bridging the Fa0 interface with a specific VLAN? Or
another way of making this work? What exactly is "Fa0" and where would I
insert a cable into this port? It doesn't seem to exist physically on
the front of the module.

(I tried reading the "Getting Started" guide and the chapter regarding
management in the "Configuration Guide" but either I'm blind or they're
targeted server people.)

Thank you.

-- 
Peter