TCL ping
I useful method to script the pinging of multiple IP addresses; tclsh foreach address {10.1.1.1 10.2.2.2} {ping $address repeat 2} tclquit
IOS
A collection of 2 posts
CCIE R&S Lab Equipment and IOS Version
I guess a key part to studying for CCIE is to understand what devices and IOS versions you will be tested on in the lab. Thanks to Cisco they let you know this