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Routing Problem between Procurve 9300 and 5308 switches

Brady Hiscox
Occasional Contributor

Routing Problem between Procurve 9300 and 5308 switches

I have this problem that I just can't seem to figure out, maybe I've been looking at it to long in a uncomfortable little server room. I thought I would ask the forum to see if anyone else had ideas.

A rundown of the setup is as follows. There is a HP Procurve 9300 switch as a core with quite a few HP Procurve 5308 switches as edge switches. Most of the configurations are identical with the exception of a few test switches.

On the 9300 we have some core devices landed on it that are Linux and windows boxes. On the edge we have 90% linux boxes and a few windows pc's. There's really nothing special going on here.

The problem is we are getting timeouts when communicating from one end to the other. Additionally if I do a traceroute from any machine to the other end on the core the hop that goes through the core switch will timeout until finally getting to the destination.

Basically in the system that is in place this is causing a ton of false alarms and failover devices to kick in when they shouldn't be.

I don't have the configurations handy on this computer but will try to attach them later. A rundown is as follows:

On the core switch there are several /24 networks with a default gateway of .254 in each of them. The network ranges are essentially all 192.168.x.0/24

Interconnecting the switches are /30 subnets in the 192.168.10.x/30 range.

OSPF is the routing protocol in use, spanning tree is enabled as well as PIM-DM.

On the edge it is all /24 subnets with the default gateway being .1 in the range they are all addressed in the 192.168.x.0/24 manner.

The trunks between the switches are just setup as trunks with no lacp and the trunk is untagged in a respective vlan on each edge switch and the core switch.

The default vlan is unaddressed and has no ports tagged or untagged.

I sort of inherited this design and it is in a mission critical application that makes changing this nearly impossible. Sorry I was not able to attach some network configurations but I gave you the majority of the information.

Thanks in advance.