[c-nsp] Strange Problem

[Alexandra Alvarado]

Hello,

Until now this problem with no explanation has been ocurred 6 times:

Network Diagram
---------------

Cisco 7513  --- (eth0) Main Linux (eth1) --- Clients
                        

The network has Switches Cisco 3550 in the Backbone, suddenly in any hour one of my clients (I'm going to call it Client A) loss comunication to the cisco router 7513, all others clients are ok, but the client A remains down. I can see the next:

1.- From devices that belongs to de same network no problem
2.- I saw the correct mac address learned in the port switch where directly is connected the Client A
3.- I saw the correct Client A mac address learned in the eth1 Main linux

It's like the linux loss the routing capacity of only one ip address from de network (it's strange)

Until now the problem solves when I reboot the switch 3550 near of the client with the problem, but today I reboot linux and the problems solves too

My question is:  What is the real problem?, and how could I resolve it?.


Thanks for your help!


Alexandra Alvarado