topic Re: Port connected but not working in Switching

Port connected but not working

DANATELLLLLLLO — Tue, 25 Apr 2023 04:01:09 GMT

Hi team

There is a problem with the port, the port is connected but not working, architecture: converter => cisco => server, tried to connect directly without a switch all works, but from the switch does not ping and the mac address does not take.

Re: Port connected but not working

Mark Elsen — Tue, 25 Apr 2023 06:35:45 GMT

- Verify port settings , such as correct VLAN assignment , for instance,

Re: Port connected but not working

DANATELLLLLLLO — Tue, 25 Apr 2023 06:41:46 GMT

show running config interface

switchport mode access

switchport port-security maximum 3

switchport port-security violation restrict

switchport port-security mac-address sticky

switchport port-security

ip flow monitor TEST1 input

ip flow monitor TEST2 output

no cdp enable

spanning-tree portfast

Try to clear mac address sticky , but its already empty

Re: Port connected but not working

Mark Elsen — Tue, 25 Apr 2023 07:09:14 GMT

- For starters , go for a simple as possible port setup , such as default int gix/x , then switchport mode host (e.g.) ; check if that can work,

Re: Port connected but not working

DANATELLLLLLLO — Tue, 25 Apr 2023 08:13:14 GMT

The previous configuration worked, but after a while it stopped working. I'm trying to fix it and therefore asked a question to troubleshoot

Re: Port connected but not working

MHM Cisco World — Tue, 25 Apr 2023 08:24:59 GMT

The mac is save in two table

Mac table and port secuirty mac table

Did you clear mac from both table ?

Re: Port connected but not working

DANATELLLLLLLO — Tue, 25 Apr 2023 08:29:28 GMT

the mac address table does not contain this interface (which does not work) , it turns out it has already been cleared? I only cleared sticky

Re: Port connected but not working

MHM Cisco World — Tue, 25 Apr 2023 08:37:53 GMT

show port-security address

Re: Port connected but not working

DANATELLLLLLLO — Tue, 25 Apr 2023 08:39:36 GMT

All interfaces have mac addresses, but the non-working interface is not on the list

Re: Port connected but not working

MHM Cisco World — Tue, 25 Apr 2023 09:39:41 GMT

then there is one think I guess it make port not work,
remove the ip flow monitor and check the port-security,