How to Find Out unused switch ports from large network.

[Khaleelur Rahman]

Dear team,

Please help me to find out unused switch port in large network.

(eg) ports which are not used for more then 10 days.

thanks in advance.

Regards,

Khaleelur Rahman.

[Ton V Engelen]

Hi

what we do

execute the command: 

clear counters (all interfaces / ports)

Wait 10 days

If any port / interface has both 0 input packets AND 0 output packets, the port is unused

[Khaleelur Rahman]

Wait for 10 days..??? :O

[Ton V Engelen]

Yeah

you wanted to know following:

"(eg) ports which are not used for more then 10 days."

So if you clear them today and then wait 10 days you ll have your answer by checking the input and output packets. 

[Khaleelur Rahman]

Dear Ton,

please use the following command.

sh int | inc line protocol is|Last input

[Harrie Hendriks]

I made 2 php scripts where we can find interface port who are some weeks (default 10 weaks = 70 days) are down.

output of the script gives.

System startup date  (this example switch  04 Aug 2015)

System Uptime          ( 412 days, 1:0:0)

Time script generate  (19 Sep 2016 14:13)

and the ports who are down and when they gone down.

  Index      Poort      Status      LastChange 
  1            Gi0/1        down      04 - 08 - 2015 
  2            Gi0/22      down      22 - 02 - 2016 
  3            Gi0/23      down      04 - 08 - 2015 
  4            Gi0/24      down      04 - 08 - 2015 
  5            Gi0/37      down      10 - 03 - 2016 
  6            Gi0/38      down      10 - 03 - 2016