Binding The New Switch To The Stack; Performing A Rolling Reload Or Upgrade; Starting A Rolling Reload - Lenovo RackSwitch G8264 Application Manual

Binding the New Switch to the Stack

1. Log in to the stack interface.
2. From the stack interface, assign the csnum for the new switch.

Performing a Rolling Reload or Upgrade

Starting a Rolling Reload

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Note: If replacing the Master switch, be sure to log in to the stack interface (hosted
temporarily on the Backup switch) rather than logging in directly to the newly
installed Master.
You can bind Member switches to a stack csnum using either the new switch's
asnum or MAC address :
RS G8264(config)# stack switch­number <csnum> mac <MAC address>
‐or‐
RS G8264(config)# stack switch­number <csnum> bind <asnum>
Note: If replacing the Master switch, the Master will not assume control from the
Backup unless the Backup is rebooted or fails.
You can perform a sequential reload or upgrade, otherwise known as a staggered
or rolling reload or upgrade, to avoid the need for an overall outage. With a rolling
reload or upgrade, some of the hardware stays up at all times.
This approach differs from the traditional image upgrade that requires manual
image downloads and install to individual switches, which then requires the entire
logical switch reboot.
After the firmware is copied to all members of the stack, the rolling reload or
upgrade process automatically reboots all switches sequentially in the following
order:
Backup switch

 Master switch
 Other stack members, from lowest to highest csnum
During the rolling firmware reload or upgrade process, there will be continuous
connectivity to the upstream network. From the point of view of the stack, it is as
though a series of switch and uplink failures are occurring. When the design is
cabled and configured properly, the environment redirects traffic.
For detailed instructions on upgrading and rebooting, see Chapter 3, "Switch
Software Management."
To start a rolling reload, use the command:
RS G8264(config)# reload staggered [delay <minutes>]
where delay is an integer from 2 to 20 representing the time delay in minutes
between switch reboots. The default value is one minute between switch reboots.
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Chapter 18: Stacking