[j-nsp] out of band management - real OOB

Pavel Lunin plunin at senetsy.ru
Mon Sep 19 20:02:36 EDT 2011


>   how about like management networks on ss7 deployments?
>

Not sure I correctly understand how the analogy from IP world should look
like. I can imagine a network of, say, access devices whether L2 or L3, for
which OOB mgt is really needed. But I don't know much people who use
dedicated mgt ports for this, first because it's usually copper, second
because it requires a dedicated line. Most implementations I saw used the
mgt-vlan-based approach. We've even seen here a discussion on OSPF design
for this a couple of weeks ago. Yes, sure, I agree, it's a good idea to
place the correspondent RVI into a VR/VRF/whatever. Second, I am not sure
this device (even if it's L3 and fxp0 is used) needs to send any transit
packets towards the management machines, if so — no problem with "routing
conflict".

> Hell, you could even envision something like this in the world of servers:
> > ilom (sun), drac (dell), hp-whatever-the-hell...
>

Yes, we have such a thing for routers. Called console port :)

BTW It's called iLO2 for HP. These toys usually require a license for
graphic support, JVM, weigh a couple hundreds of extra megabytes and is
totally different for different vendors. Not sure I want this in JUNOS :)
Moreover the copper 1G ports for this toys are becoming a problem for DCs
moving towards all-ten-gig.

 in 2011, we CAN have more than routing table on a single device, yes?
>

I am not arguing, that support of software-based VRs for fxp0 in JUNOS would
be useful. I just can't understand why people want so much to plug the MGT
network right into the control plane. What for? Just because they paid for
this port on RE? Why not use a normal interface, which does not require any
additional wiring and you can put into VRF or anywhere you wish?


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