Cisco Switches: Difference between revisions
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The switches for the ''private'' HPC cluster in room 68-822 are Catalyst 3750 series 24-port switches. They are in a stacked configuration meaning that the backbone spans the physical switches in a loop using Cisco StackWise Stacking Cables. | The switches for the ''private'' HPC cluster in room 68-822 are Catalyst 3750 series 24-port switches. They are in a stacked configuration meaning that the backbone spans the physical switches in a loop using Cisco StackWise Stacking Cables. | ||
== Software == | == Software == | ||
The current software version is Version 12.2(35)SE5, RELEASE SOFTWARE (fc1) | |||
== Maintainance == | == Maintainance == | ||
There is a web interface set up on a virtual IP address on the cluster network: http://192.168.0.250/. Alternatively, the switches can be configured (in | There is a web interface set up on a virtual IP address on the cluster network: http://192.168.0.250/. Alternatively, the switches can be configured by logging into them from a serial port on one of the computers using the light blue cable to connect the serial port to the ethernet-like port on the switch. To do this, on the computer you are using type | ||
<code> | |||
# dmesg | grep tty # To find the serial port | |||
serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A | |||
00:0b: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A | |||
# setserial -g /dev/ttyS0 # To set it up | |||
/dev/ttyS0, UART: 16550A, Port: 0x03f8, IRQ: 4 | |||
# minicom -s # This software creates a terminal over the serial port to configure the switch, the first time you run it it is good to configure it | |||
</code> | |||
In <code>minicom</code> you need to change the following: | |||
* in Serial Port Setup: | |||
** serial device = /dev/ttyS0 | |||
** Bps/Par/Bits = 9600 8N1 | |||
** Hardware flow control = yes | |||
** Software flow control = no | |||
* Save setup as: | |||
** cisco | |||
* Exit minicom | |||
<code> | |||
# minicom cisco # To start the terminal. Note, there are authorisation commands required to change settings: en (enables the authorisation to change something or see an important setting), conf (enables the configuration for the switch, once authorised). | |||
Switch1> en | |||
Password: | |||
Switch1# conf | |||
Switch1(config)# exit | |||
Switch1# show version | |||
Cisco IOS Software, C3750 Software (C3750-IPBASE-M), Version 12.2(35)SE5, RELEASE SOFTWARE (fc1) | |||
... | |||
</code> | |||
To exit just press Ctrl-A X. | |||
See [http://www.cisco.com/en/US/products/hw/switches/ps5023/products_installation_and_configuration_guides_list.html here] for configurational information. Alan has all the passwords. | |||
Revision as of 02:08, 24 August 2009
Cisco Switches
The switches for the private HPC cluster in room 68-822 are Catalyst 3750 series 24-port switches. They are in a stacked configuration meaning that the backbone spans the physical switches in a loop using Cisco StackWise Stacking Cables.
Software
The current software version is Version 12.2(35)SE5, RELEASE SOFTWARE (fc1)
Maintainance
There is a web interface set up on a virtual IP address on the cluster network: http://192.168.0.250/. Alternatively, the switches can be configured by logging into them from a serial port on one of the computers using the light blue cable to connect the serial port to the ethernet-like port on the switch. To do this, on the computer you are using type
- dmesg | grep tty # To find the serial port
serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
00:0b: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
- setserial -g /dev/ttyS0 # To set it up
/dev/ttyS0, UART: 16550A, Port: 0x03f8, IRQ: 4
- minicom -s # This software creates a terminal over the serial port to configure the switch, the first time you run it it is good to configure it
In minicom you need to change the following:
- in Serial Port Setup:
- serial device = /dev/ttyS0
- Bps/Par/Bits = 9600 8N1
- Hardware flow control = yes
- Software flow control = no
- Save setup as:
- cisco
- Exit minicom
- minicom cisco # To start the terminal. Note, there are authorisation commands required to change settings: en (enables the authorisation to change something or see an important setting), conf (enables the configuration for the switch, once authorised).
Switch1> en
Password:
Switch1# conf
Switch1(config)# exit
Switch1# show version
Cisco IOS Software, C3750 Software (C3750-IPBASE-M), Version 12.2(35)SE5, RELEASE SOFTWARE (fc1)
...
To exit just press Ctrl-A X.
See here for configurational information. Alan has all the passwords.
