Table of Contents
Advertisement
Quidway S5700 Series Ethernet Switches
Configuration Guide - Device Management
The original service configurations on a switch are cleared after the switch is added to a stack.
Then, the switch uses global configurations of the master switch. If the configuration file already
exists on the master device and an interface already exists in the configuration file, the interface
can be configured through the configuration file. If an interface does not exist in the configuration
file, the configuration of the interface is null. If the configuration file does not exist on the master
device, the default configuration of the interface is used. If the stack ID of the added switch
conflicts with the stack ID of another member switch in the stack, the master switch reassigns
a stack ID to the added switch. Adding a member switch does not affect the original services in
the stack system.
A stack consists of up to nine switches. The number of the member switches cannot exceed the
limit after new member switches are added to the stack.
Quitting a Stack System
Quitting a stack system refers to the action of leaving a stack. Different roles inflict different
impacts on a stack by quitting the stack system. The following describes different situations:
l
l
l
l
Restarting a Member Switch
If a stack system runs stably, restarting a member switch indicates that a member switch quits
a stack system first and then rejoins the stack system.
l
l
l
When a member switch restarts, the master switch recalculates the stack topology and delivers
the stack routing table. Then, the member switch rejoins the stack as a standby or slave switch.
Replacing a Member Switch
If a stack system runs stably, replacing a member switch indicates that a member switch quits
the stack system first and then a new member switch joins the stack system. For more details,
see the description of adding a member switch to a stack system and quitting a stack system.
Issue 01 (2011-07-15)
When the master switch quits a stack system, the neighbor switch detects the change, and
then informs the neighbors of the change and updates the information about the local
neighbors. The standby switch becomes the master switch, and then recalculates the stack
topology and informs all the other member switches of the change. In addition, the new
master switch specifies a member switch as the standby switch, and then runs normally.
When the standby switch quits a stack system, the master switch re-specifies a member
switch as the standby switch, and then recalculates the stack topology and informs all the
other member switches of the change.
When a slave switch quits a stack system, the master switch only recalculates the stack
topology and informs all the other switches of the change. The quitting slave switch restarts
immediately.
When the master and standby switches quit a stack system at the same time, all the other
member switches in the stack system restart and recreate a stack system.
If the master switch restarts, the standby switch becomes the master switch, and then
specifies another member switch as the standby switch and synchronizes data to the new
standby switch.
If the standby switch restarts, the master switch specifies another member switch as the
standby switch and synchronizes data to the new standby switch.
When the master and standby switches restart at the same time, all the other member
switches in the stack system restart and recreate a stack system.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
3 Stacking
27
Advertisement
Table of Contents
