First, you will need to determine the type of OC-3 being brought to you from your Telco provider and verify that you purchase the correct 3640 interface. The URL below will take you to the interface selection or you can go to the cisco product catalog for the 3600 router line.
OC-3 circuits are fiber optic, ATM circuits that provide a number configuration options for QOS and are ideal for both large amounts of data as well as voice/video applications. Just about anything you would ever want to know about ATM can be found Techfest.com- http://www.techfest.com/networking/atm.htm
As far as the IOS version, I would select the appropriate version for the protocols I was intending to run as well as meeting the requriements for the network modules I was installing. I had good luck with 12.0(7)T on a 7204VXR for an OC3 with T1 CES routing IP only.
[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...