C9200L blocks

[dfezfd05]

i have a problem with c9200L stack,

Sometimes a port is blocked randomlly for one user and not for others, sometimes a hole vlan is blocked.

What i do is unblug the user and put the same configuration in another port or just make default configuration in the same port and reconfigure it with same config, or i shutdown the hole stack( taking off the alimentation).

I upgraded the version to the latest and it didn't resolve the problem, the ip phones gives the tftp problem.

[Kasun Bandara]

@dfezfd05 

when port is blocks, check the reason for blocking.

1. check interface using #sh interface gi0/x and find the reason for blocking (err-disables)

2. check logs to understand why port/vlan is getting blocked

[Joseph W. Doherty]

". . . the ip phones gives the tftp problem."

Which is?

[Leo Laohoo]

When this happens again, post the complete output to the command "sh interface status err".

[balaji.bandi]

what version did you upgrade to? what is the configuration of the access port ?

Sometimes a port is blocked randomly for one user and not for others, sometimes a hole vlan is blocked.  - BLOCK means, is the port go error disabled ? what reason ? if the whole VLAN - then I suspect some STP issue here ?