02-25-2008 02:28 PM
We're in the process of either upgrading from an OC12 to an OC48 or adding a secondary OC12. Can anyone tell me any additional considerations I need to take into account besides card space and vt matrix space? I'm just trying to ensure I cover all of my bases.
Thanks
02-25-2008 05:18 PM
1. Are you considering the MRC card or do you have fixed OC48? Check your cross connect cards. Older XC cards & some fixed optics cards require OC48 cards in high-speed slots. XC10G (and newer XCs) provide support for any-slot OC48.
2. Check you fiber losses and compare against the OC48 card specs.
3. What is the optical architecture and current VT usage? If you are worried about VT consumption, try to aggregate VT cross connects into as few STS as possible.
In general, one OC48 is much better use of slot real estate vs multiple lower rate cards.
02-26-2008 08:34 AM
Typically, the automatic upgrade function in the Cisco Management System (CMS) performs this task well.
Make sure to:
-Back-up the databases
-Verify the nodes are operating on the same version software
-Clear open alarms before beginning upgrade procedure
-Verify the new optics cards are compatible with the cross-connect in the shelf and the shelf slot.
-Follow upgrade instructions for the version of software you are operating
Can't think of anything else.
I'm sure others will have input as well.
Good Luck
Tom
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide