l Preemption mode
l Method of selecting the port to block
l Priorities of the ports in the SEP segment
Procedure
Step 1 Configure basic SEP functions.
1. Configure SEP segment 1 on LSW1 to LSW5 and configure VLAN 10 as the control VLAN
of SEP segment 1.
# Configure LSW1.
<Quidway> system-view
[Quidway] sysname LSW1
[LSW1] sep segment 1
[LSW1-sep-segment1] control-vlan 10
[LSW1-sep-segment1] protected-instance all
[LSW1-sep-segment1] quit
# Configure LSW2.
<Quidway> system-view
[Quidway] sysname LSW2
[LSW2] sep segment 1
[LSW2-sep-segment1] control-vlan 10
[LSW2-sep-segment1] protected-instance all
[LSW2-sep-segment1] quit
# Configure LSW3.
<Quidway> system-view
[Quidway] sysname LSW3
[LSW3] sep segment 1
[LSW3-sep-segment1] control-vlan 10
[LSW3-sep-segment1] protected-instance all
[LSW3-sep-segment1] quit
# Configure LSW4.
<Quidway> system-view
[Quidway] sysname LSW4
[LSW4] sep segment 1
[LSW4-sep-segment1] control-vlan 10
[LSW4-sep-segment1] protected-instance all
[LSW4-sep-segment1] quit
# Configure LSW5.
<Quidway> system-view
[Quidway] sysname LSW5
[LSW5] sep segment 1
[LSW5-sep-segment1] control-vlan 10
[LSW5-sep-segment1] protected-instance all
[LSW5-sep-segment1] quit
NOTE
l The control VLAN must be a VLAN that has not been created or used, but the configuration file
automatically displays the command for creating the VLAN.
l Each SEP segment must be configured with a control VLAN. After an interface is added to the
SEP segment configured with a control VLAN, the interface is automatically added to the control
VLAN.
2. Add all devices on the ring to SEP segment 1 and configure port roles on the devices.
NOTE
By default, STP is enabled on a Layer 2 interface. Before adding an interface to the SEP segment,
disable STP on the interface.
# On LSW1, configure GE1/0/1 as the primary edge port and GE1/0/3 as the secondary
edge port.
Quidway S7700 Smart Routing Switch
Configuration Guide - Ethernet 10 SEP Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
527
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