just realized I posted this in wrong section, so here it is:
Hi here is my problem:
I have 2 3500XL switches in a building exhibiting problems. I am having multiple instances of link up/down state changes. Sh post tells me ports 9-12 failed loopback test as well as the Gigabit port 1. No one in the building can data out. I am able to telnet in from another route though. This happened last week on about Thursday. Just prior to this we had a pretty bad storm blow over, lots of lightning. I am thinking Electrostatic Discharge and the interfaces for both are damaged. However I can't justify that, any help would be appreciated. If I had to replace them thats fine I just want to know I have exhausted all my solutions first.
[toc:faq]The ProblemOn traditional switches whenever we have a trunk
interface we use the VLAN tag to demultiplex the VLANs. The switch needs
to determine which MAC Address table to look in for a forwarding
decision. To do this we require the switch to do...
[toc:faq]Introduction:Netdr is a tool available on a RSP720, Sup720 or
Sup32 that allows one to capture packets on the RP or SP inband. The
netdr command can be used to capture both Tx and Rx packets in the
software switching path. This is not a substitut...
IntroductionOSPF, being a link-state protocol, allows for every router
in the network to know of every link and OSPF speaker in the entire
network. From this picture each router independently runs the Shortest
Path First (SPF) algorithm to determine the b...