I have a switch stack of two 3750s. Recently the master in the stack rebooted. I am trying to determine why. Unfortunately the switch is only configured to log to the internal bufer and this has been overwritten with more recent events. Is there any way to find out why the restart occured (it wasn't planned).
"sh version" tells you when the stack was reloaded and why which in our case was a power on a few weeks ago which I am aware of. The recent restart of the master switch is displayed at the bottom of the command output but it doesn't display a reason why.
[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...