In this order: Manual router ID configured under ospf process Highest IP address of a loopback in the up state...
Contents of the Crashinfo File The crashinfo file contains this information: *limited error message (log) and command history *description of...
RIP – “sh ip rip database” OSPF – OLD > “sh ip ospf database” NEW > “sh ip ospf rib...
When a switch stack forms a port-channel, the active stack member’s MAC Address is used for the LACP ID. The...
HSRP Tracking is pretty easy to do. You have several options as you’ll see below....
When saving device configurations using PuTTY, you’ll got a lot of –more–’s in the configuration file and it’s annoying. To...
I came across a bug in IOS 12.2(53r)SE2 and it shows up in other IOS versions, where the “Total output...
Some common ones I use:...
RFC1918 name IP address range number of addresses largest CIDR block (subnet mask) host id size mask bits classful description...