Friday, January 13, 2012

Catalyst 3500XL layer 3 frozen

I'm not sure about the reason (most likely a broadcast storm), but one of our 3500XL switches stopped processing L3 traffic. Layer 2 switching was normal, and since it's our distribution switch (Cisco Modular Campus Design, here we come!), I didn't really want to reload it.

Consoling to the switch provided me with a responsive CLI, so no trouble there, either. CPU utilization was normal too.

After a few show commands, it turned out that it can't even resolve IPs with ARP.
I tried clear arp-cache, clear mac-address table, clear int vlan 10; no joy. I had to delete the entire vlan interface (no interface vlan 10), clear the caches, and re-create the vlan interface to make it work again. Of course it's running the latest IOS out there (12.0(5)WC17).

Wednesday, January 11, 2012

A new kind of sexy: Huawei Quidway S2309

During winter break I managed to acquire a new baby to my collection:
a Huawei Quidway S2309 switch.

It's a layer2, carrier CPE grade box, with a lot of features:

It runs the Huawei VRP software, which is almost like the 3Com Comware, so I can use this baby to practice for my HP ASE exams.

Stay tuned for updates on this baby...