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Author Topic: challenging wide network OSPF + HP comware + OOB management :)  (Read 105 times)

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Offline romnet

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challenging wide network OSPF + HP comware + OOB management :)
« on: September 10, 2018, 02:18:45 PM »
Hey guys, I'm looking for your opinion on the following :

Big routed network for a country-wide tetra network. We have routers (actually L3 switches from HP) that are in several locations, all connected by various long-haul (licensed) wireless links.

My concern is : the client previously broadcasted a management vlan with all its OOB management interfaces, let's say vlan number 100. There was also a OSPF instance running on all switches connected to between 1 and 4 other switches (mesh network). On top of that STP running as well :)

I'm trying to figure out good practices I could propose them :

1st approach : change all links between switches to "route" mode and not bridge (cisco equivalent : no switchport), and then make all vlans actually routed. In this scenario, I guess I need to have on small, let's say /30 network for local management that will be routed, each location having it's all /30 management network.

2nd approach : keep the same mix as they did, with OSPF + vlans running together, good thing is the management vlan is the same everywhere and is not affected by OSPF malfunctions :D

That's a tricky question I think, 1st approach looks better to me, but I have never deployed such wide network with routing + OOB management  :) any clues ?


Offline Michael McNamara

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Re: challenging wide network OSPF + HP comware + OOB management :)
« Reply #1 on: September 10, 2018, 08:29:12 PM »
I would suggest a loopback interface running OSPF in passive mode... you could assign a /32 address to the loopback, let OSPF figure out the routing, then you have a single IP address to manage the switch/router regardless of what /30 network is up or running to get to said device.

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