10-06-2012 11:16 AM - edited 03-04-2019 05:46 PM
I'm studying for my CCNA exam.
I'm busy setting up a frame-relay lab.
Everything is going well so far, but when i finished the lab after a few minsee i can't ping some routers anymore.
in the beginning i can ping everything.
All my mappings are still active and up.
The routes on the frame relaye switch are also active .
What can cause this to happen?
My lab is in attachment .
Passwords are cisco
10-06-2012 11:57 AM
Can you change the file extension from .rar to some thing else, so I can view it? .doc is good.
10-06-2012 11:59 AM
Which all routers you are not able to ping now?
CCIE (R&S) 25070
10-06-2012 12:17 PM
Hi Najaf and Reza
Thx for fast reply.
In the beginning everything works fine, but after a while i can't ping let's say any router anymore.
So i can't answer the question.
Can this be gns3 or is this congestion ?
the lab is done in gns3 (Reza)
10-06-2012 12:22 PM
replace your WIC-2T in slot 0 by NM-4T in slot 1 and it should work, I've had lots of problems with WIC-2T and 3725 platform too and with NM-4T never had an issue.
Don't forget to rate helpful posts.
10-06-2012 01:10 PM
Well i'm back.
i tryed it ,but when i try to remove the wic-2t and add nm-14t to slot 1 push apply .Wic-2t stays in that other slot.
I've tryed it with a new lab .First adding the nm-4t module then connecting it to a router.When i look back to the router i see that wic 2t is back.
I've read this on forum about it :
In the real world: a WIC-2T will give you two async/synchronous serial interfaces, and the NM-4T will give you 4 synchronous only serial interfaces. A NM-4T is a network module which is usually about the size of 4 WIC cards. They both use different types of physical connectors, but offer relatively the same functionality, connecting various remote topologies together. WIC-2T connects via a Smart Serial cable. NM-4T uses a DB-60 serial cable. Maximum data rates on the NM-4T are 8 Mbps on port 0; 4 Mbps each on port 0 and port 2; or 2 Mbps on all four ports simultaneously (8 Total). Depending on the slot the WIC-2T is inserted into, it can support up 8Mbs on both ports with a maximum of 6 ports at 8Mbps each.
How can i replace them on a existing lab?
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: