Configuring A Stack; Configuration Overview; Best Configuration Practices - Lenovo RackSwitch G8264 Application Manual

Configuring a Stack

Configuration Overview

Best Configuration Practices

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G8264 Application Guide for ENOS 8.4
Notes:
 When stacking mode is enabled on the switch, the configuration is reset to
factory default and the port numbering changes.
When a switch mode is changed from standalone to stack or from stack to

standalone, the active and backup configuration will be erased. We
recommended that you save the configuration to an external device before
changing the switch mode.
This section provides procedures for creating a stack of switches. The high‐level
procedure is as follows:
 Configure the stack settings to be available after the next reboot:
Choose one Master switch for the entire stack.

Set all stack switches to stacking mode.

Configure the same stacking VLAN for all switches in the stack.

Configure the desired stacking interlinks.

Configure a management interface.

 Reboot the Master switch.
 Configure the stack after the reboot:
Bind Member switches to the Master.

Assign a Backup switch.

These tasks are covered in detail in the following sections.
The following are guidelines for building an effective switch stack:
 Always connect the stack switches in a complete ring topology (see Figure 25 on
page 304).
 Avoid disrupting the stack connections unnecessarily while the stack is in
operation.
 For enhanced redundancy when creating port LAGs, include ports from
different stack members in the LAGs.
 Avoid changing the csnum definitions unnecessarily while the stack is in
operation.
 Avoid rebooting the switches unnecessarily.
 When in stacking mode, the highest QoS priority queue is reserved for internal
stacking requirements. Therefore, only seven priority queues will be available
for regular QoS use.
Configure only as many QoS levels as necessary. This allows the best use of

packet buffers.