This describes how you can recover from corrupt/lost IOS image (stuck in rommon) or how to recover if you have a corrupt/lost bootldr image file.
I guess if you are stuck in rommon you have check that there is a bootldr file present with the "set" command and tried to force a the Sup to load with the "boot" command.
If you have a corrupt IOS image file that will not boot then you can tftp a new image down from rommon, if the bootldr is lost then it needs to be replaced with a new image file via xmodem. Takes a little while though.
[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...