10-09-2013 04:46 PM
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??
10-09-2013 08:27 PM
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
10-10-2013 11:41 AM
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).
10-11-2013 01:46 AM
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.
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
In a Windows environment:
Bits per second: 9600
Stop bits: 1
Flow control: None