In MSTI1, after RouterA is configured as a root bridge, RouterA Eth2/0/0 and Eth2/0/1 are
elected as designated ports during spanning tree calculation. In MSTI2, after RouterA is
configured as a root bridge, RouterA Eth2/0/0 and Eth2/0/1 are elected as designated ports during
spanning tree calculation.
# Verify the interface status and protection type on SwitchA. In MSTI1, interface Eth0/0/1 is
elected as root port, interfaces Eth0/0/2 and Eth0/0/3 are elected as designated ports. In MSTI2,
interface Eth0/0/1 is elected as root port, interfaces Eth0/0/2 and Eth0/0/3 are elected as
designated ports.
# Verify the interface status and protection type on SwitchB. In MSTI1, interface Eth0/0/1 is
elected as root port, interfaces Eth0/0/2 and Eth0/0/3 are elected as designated ports. In MSTI2,
interface Eth0/0/1 is elected as root port, interfaces Eth0/0/2 and Eth0/0/3 are elected as
designated ports.
# Verify the interface status and protection type on SwitchC. In MSTI1, interface Eth0/0/1 is
elected as root port, interface Eth0/0/4 is blocked. In MSTI2, interface Eth0/0/1 is elected as
root port, interface Eth0/0/4 is elected as designated port.
# Verify the interface status and protection type on SwitchD. In MSTI1, interface Eth0/0/1 is
elected as root port, interface Eth0/0/4 is elected as designated port. In MSTI2, interface
Eth0/0/1 is elected as root port, interface Eth0/0/4 is blocked.
----End
Configuration Files
l Configuration file of RouterA
#
sysname
RouterA
#
vlan batch 2 to
20
#
stp instance 1 root
primary
stp instance 2 root
primary
stp pathcost-standard
legacy
#
stp region-
configuration
region-name
RG1
instance 1 vlan 2 to
10
instance 2 vlan 11 to
20
active region-
configuration
#
interface Ethernet2/0/0
port link-type trunk
port trunk allow-pass vlan 2 to
20
stp root-
protection
#
interface Ethernet2/0/1
port link-type trunk
port trunk allow-pass vlan 2 to
Huawei AR3200 Series Enterprise Routers
Configuration Guide - LAN 8 MSTP Configuration
Issue 02 (2012-03-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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