Huawei S Series White Paper

S Series Switches
iStack Technology White Paper
2 Technology Description
Issue 01 (2013-05-25)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
19
Figure 2-8 Removing the standby switch
SwitchA
(Master)
SwitchB
(Standby)
SwitchC
(Slave)
Detects that the
stack port goes
Down, deletes
neighbor
information, and
recalculates
topology
information
Hehuan packet
HIGIG packet
Nbr Lost
Discards the
packet and does
not process it
Notifies SwitchC that it becomes
the new standby switch
Reselect the
standby switch
Running state
Running state
Figure 2-9 Removing a slave switch
SwitchA
(Master)
SwitchB
(Standby)
Switch C
(Slave)
Nbr Lost
SPDU times out and
the device is restarted
Delete lost neighbor
information
Hehuan packet
Recalculates
topology
information
HIGIG packet
SwitchD
(Slave)
Nbr Lost
Running state Running state Running state
Hehuan packet
HIGIG packet

Huawei S Series Specifications

General

Brand	Huawei
Model	S Series
Category	Switch
Language	English