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New Contributor
Posts: 2
Registered: ‎10-09-2013

How access switch to run supportshow cmd??

Hello,

I'm trying to access a couple of switches (4100) to run "supportshow" cmd, I have not IP, I can not get prompt through serial cable or network.

Can anybody help me??

External Moderator
Posts: 4,813
Registered: ‎02-23-2004

Re: How access switch to run supportshow cmd??

hear to me you have generally no access to those switches, is correct ?

->can not get prompt through serial cable


is most probable you have wrong serial cable or wrong value set in the COM configuration.


anyway, this is a common topic, use the search feature here in the community, and try to resolve serial connection.


then you can continue with other step

TechHelp24
New Contributor
Posts: 2
Registered: ‎10-09-2013

Re: How access switch to run supportshow cmd??

Thank you,

What characteristics should the cable have??

It is another way to get the support show?

How can I know the Switchs IP's??

Thanks a lot ¡!¡

Valued Contributor
Posts: 931
Registered: ‎12-30-2009

Re: How access switch to run supportshow cmd??

What characteristics should the cable have??

It was supplied with the switch. I don't know the characteristics for the pins.

It is another way to get the support show?

With out access to the CLI Serial or other management interface like BNA, NO

How can I know the Switchs IP's??

Will they should be registered in a document or database.

If you don't have a document, try your CMDB/ DNS/ DHCP to see if you spot something which might point to your switches.

If you still haven't found them, but you know were the management port is plugged into (ie switch and port) you could ask your network team which vlan is assigned to the port and if there's an mac address present.

If so you could try an netscan for that vlan in the hopes some ports advertise themself (22/23/80 are usual suspects).

Valued Contributor
Posts: 761
Registered: ‎06-11-2010

Re: How access switch to run supportshow cmd??

Hi,

A cable should have been provided with the switch, but if you do not have it you should get a cable with the following characteristics:

Serial Port Specifications:

The serial port is located on the port side of the switch. It is a three-wire RS-232 port with a DB-9 male connector, designed to connect to a DTE port.

The port requires a straight serial cable with a female 9-pin subminiature-D connector. Only pins 2, 3, and 5 are supported.

Cable pinouts:

PIN   Signal          Description

1     Not supported   Not supported

2     RxData          Receive data

3     TxData          Transmit data

4     Not supported   Not supported

5     GND             Logic ground    

6     Not supported   Not supported

7     Not supported   Not supported

8     Not supported   Not supported

9     Not supported   Not supported

Serial Connection:

In a Windows environment:

Bits per second: 9600

Databits: 8

Parity: None

Stop bits: 1

Flow control: None

Rgds

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