2960 Switch port status down

[anthonydellarosa1]

I am setting up my 2960 switch and only 1 of my ports is showing a status of being up. I have tried different cables in different ports but only one(f0/6) is lighting up. The rest are showing all as being down when I try to assign it an ip address or try to show ip int brief

[daniel]

are the other ports marked as administratively down? if so use the no shutdown command to enable them

[Julio E. Moisa]

Hi

If the port is administratively down, you need to enable them executing:  no shutdown, you can enable them using:

using a range command:

interface range fa0/1-48 
no shutdown

Could you please provide: 

show ip int brief    and   show interface status. 

:-)

[anthonydellarosa1]

It seems now it is back up and the lights are green, before it was up then down and now it's back up again

[Julio E. Moisa · Accepted solution]

Hi Anthony,

Great, the ports probably were shutdown, with show interface status  you will see if there is any device connected to the ports.

Hope it is useful

:-)

[anthonydellarosa1]

I have another question on the same switch which is a catalyst 2960. I cannot enable SSH.

S1(config)# line vty 0 15
S1(config-line)# transport input ssh  the ssh is not available, when I add a question mark after transport input I get all, and telnet but not ssh

thanks

[Julio E. Moisa]

Hi

The reason is because you need to upgrade to an IOS image that supports SSH. Could you please share your current image? it can be seen using: show version or show flash:

by the way it is the basic SSH configuration:

Basic SSH Config

hostname <switch hostname>
ip domain name <any domain name>
ip ssh ver 2  
ip ssh auth 3   (example value)
ip ssh time 120  (if im not wrong max time is 2 minutes)
cryto key generate rsa

select at least 1024

line vty 0 15
transport input ssh

if you are going to use local credentials (username <user> priv 15 password <password>)

you need to execute:

no aaa new-model
line vty 0 15
login local

Thank you in advance. 

[Julio E. Moisa]

You need an IOS K9 to support SSH configuration, it is an example for Catalyst 2960-48TT-L Switch

https://software.cisco.com/download/release.html?mdfid=279963518&flowid=2551&softwareid=280805680&release=12.2.55-SE11&relind=AVAILABLE&rellifecycle=ED&reltype=latest

[anthonydellarosa1]

Looks like 12.2

can I upgrade the iOS via a flash drive?

[Julio E. Moisa]

Hi

Yes, you have a basic lanbase IOS you need to upgrade to a lanbaseK9 IOS. You can upgrade the IOS using TFTP:

IOS to upgrade:

https://software.cisco.com/download/release.html?mdfid=279963472&flowid=2548&softwareid=280805680&release=12.2.55-SE11&relind=AVAILABLE&rellifecycle=ED&reltype=latest

Steps to upgrade:

http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960/software/release/12-2_25_fx/release/notes/OL7076.html

http://www.philvirtual.com/it/it/how-to-replace-a-cisco-2960-switch-and-upgrade-firmware/

Note: in some cases you need to delete the current IOS to upgrade with a new one, during this process the switch should not be rebooted.  *take cautions*

Hope it is useful

:-)

[anthonydellarosa1]

Thank you

[Julio E. Moisa]

Hi Anthony,

You are welcome, have a great day!

:-)

[navnath.dighe]

Switch port shows administratively down, not up using no shut command. Kindly help for same.

[Georg Pauwen]

Hello,

that sounds very much like a physical problem with e.g. the Ethernet controllers. What do you see when you reboot the switch ? The output should give you some information on the port failures...