Hi all
we just moved from the omniswitch 9800 to the 10k (OS10K 8.3.1.314.R01 GA, September 07, 2016).
In the first week from the installation we noticed slowness in the remote networks.
After one week remote switches begin to block themselves.
every switch is configured with SPT 1x1:
show spantree mode
Spanning Tree Global Parameters
Current Running Mode : Per VLAN,
Current Protocol : N/A (Per VLAN),
Path Cost Mode : AUTO,
Auto Vlan Containment : N/A
Cisco PVST+ mode : Disabled
Vlan Consistency check: Disabled
no one ports was blocked by the SPT.
the only abnormal thing that I saw is the cpu usage in the slot 1 of the 10k, the cpu hit the 100%!
Than I disconnected each port from the slot1 until I found and isolated the remote switch that caused the malfunction.
I repeated the disconnect operation in the remote switch Omniswitch 6250 (6.6.4.177.R01 GA, May 24, 2013) and find a crushed copper cable.
How is possible that a fault cable connected to a 100mbit interface on a remote switch can block all my network ?
(Probabily the cable was already crushed at the time of the 9800)
Is there in the 10k (with AOS8) a feature to prevent this kind of troubles ?
thanks
Giacomo