Tag: IOS

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Cisco : Serial Numbers

Today I have spent some time trying to find serial numbers on multiple Cisco devices, some Routers, Switches, Firewalls and Wireless LAN Controllers. Here is 7 ways I have found:

  1. Locate the serial number tag on the device chassis.
  2. The serial number is displayed in the banner during boot.
  3. “show version” command. (Look for Processor board ID or S/N)
  4. “show inventory” command. (Look for Hw Serial# or SN:)(Also works on WLC’s)
  5. “show diag” command. (Look for Chassis Serial Number)
  6. “show hardware” command. (Look for Processor board ID or S/N)
  7. “show tech-support” command. 
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Cisco/Brocade : Basic Similar Commands

  • Here are some basic switch commands and the Cisco to Brocade differences, even though the OS’s are similar they have some subtle differences.

Task

Cisco

Brocade

Configure a VLAN

Interface vlan 2

Vlan 2

Configure a trunk port

Int fa0/1

Switchport trunk encap dot1q

Switchport mode trunk

Vlan 2

Tagged eth 0/1/1

Vlan 3

Tagged eth 0/1/1

Vlan 4

Tagged eth 0/1/1

Interface ethernet 0/1/1

Dual-mode 1

Configure a access port

Int fa0/1

Switchport access vlan 2

Vlan 2

Untagged eth 0/0/1

Configure an IP address on a VLAN

Int vlan2

Ip address 192.168.1.1 255.255.255.0

Vlan 2

Router interface ve 1

Interface ve1

Ip address 192.168.1.1 255.255.255.0

Configure a range of ports

Int range fa0/1-10

Int eth 0/1/1 to 0/1/5

Configure a port for both voice and data vlans

Int fa0/1

Switchport access vlan2

Switchport voice vlan3

vlan2

Tagged eth 0/1/1

vlan3

Tagged eth 0/1/1

Inter eth 0/1/1

Dual-mode 1

Voice-vlan 3

Inline power

Show the interface status of a port/vlan

Sh int fa0/1

Show int eth 0/1/1

See CDP Neighbors

Show cdp neighbors

Show fdp neighbors
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Cisco : IOS Upgrade to Denali

CATALYST IOS UPGRADE TO DENALI

You can copy the files to the router from your local pc with the Fenix web server.

Right click on the file in the Fenix web browser > copy link > use the copy command on the device.

Copy OS file to flash:

Copy usbflash0:<filename> flash:<filename>

                  verify /md5 bootflash:<image_file>

On XE 3.x

software install file flash:<filename> new force

On Denali 16.x

request platform software package install switch all file flash: <filename> auto-copy

Troubleshooting

Clean OS’s in Denali

Request platform software package clean switch all file flash:

If Versions are Mismatches in XE

% Switch # is running incompatible software.

Compatible software must be installed on this switch before performing the current operation.

Switch#software auto-upgrade

If Versions are Mismatches in Denali

device(config)#software auto-upgrade enable

UPGRADE 3.6+ IF MASTER SWITCH IS ON DENALI 16.3

request platform software package install autoupgrade

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Cisco : IOS Catalyst Upgrade

CATALYST IOS UPGRADE

From the switch, do the following

Get an MD5 hash to verify the image is intact

                verify /md5 bootflash:<image_file>

Set the config to boot from the new image

               boot system flash bootflash:<image_file>

Save the config and reload

              write mem
              reload

The switch comes back up with the new image

             sh version

Save the config

             write mem