Cisco Cisco IOS Software Release 12.2(55)SE
5
Release Notes for the Cisco ME 3400E and ME 3400 Ethernet Access Switches, Cisco IOS Release 12.2(55)SE and Later
OL-23325-06
Upgrading the Switch Software
Upgrading a Switch
This procedure is for copying the combined tar file to the switch. You copy the file to the switch from a
TFTP server and extract the files. You can download an image file and replace or keep the current image.
TFTP server and extract the files. You can download an image file and replace or keep the current image.
Note
For downloading software, we recommend that you connect to the TFTP server through a network node
interface (NNI). If you want to connect to the server through a user network interface (UNI), see the
“Troubleshooting” chapter of the software configuration guide for methods for enabling ping capability
on UNIs.
interface (NNI). If you want to connect to the server through a user network interface (UNI), see the
“Troubleshooting” chapter of the software configuration guide for methods for enabling ping capability
on UNIs.
To download software, follow these steps:
Step 1
Use
to identify the file that you want to download.
Step 2
Download the software image file:
a.
If you are a registered customer, go to this URL and log in.
b.
Navigate to Switches > Service Provider Switches - Ethernet Access.
c.
Navigate to your switch model.
d.
Click IOS Software, then select the latest IOS release.
Download the image you identified in Step 1.
Step 3
Copy the image to the appropriate TFTP directory on the workstation, and make sure that the TFTP
server is properly configured.
server is properly configured.
For more information, refer to Appendix B in the software configuration guide for this release.
Step 4
Log into the switch through the console port or a Telnet session.
Step 5
(Optional) Ensure that you have IP connectivity to the TFTP server by entering this privileged EXEC
command:
command:
Switch# ping tftp-server-address
Note
By default, ping is supported on network node interfaces (NNIs), but you cannot ping from a
user network interface (UNI) because the control-plane security feature drops ICMP response
packets received on UNIs. See the “Troubleshooting” chapter of the software configuration
guide for methods for pinging from the switch to a host connected to a UNI.
user network interface (UNI) because the control-plane security feature drops ICMP response
packets received on UNIs. See the “Troubleshooting” chapter of the software configuration
guide for methods for pinging from the switch to a host connected to a UNI.
For more information about assigning an IP address and default gateway to the switch, refer to the
software configuration guide for this release.
software configuration guide for this release.
Step 6
Download the image file from the TFTP server to the switch. If you are installing the same version of
software that is currently on the switch, overwrite the current image by entering this privileged EXEC
command:
software that is currently on the switch, overwrite the current image by entering this privileged EXEC
command:
Switch# archive download-sw /overwrite /reload
tftp:
[[//location]/directory]/image-name.tar
The /overwrite option overwrites the software image in flash memory with the downloaded one.
The /reload option reloads the system after downloading the image unless the configuration has been
changed and not saved.
changed and not saved.