_{配置思路：} 1在处于环形网络中的交换设备上配置MSTP基本功能。与PC相连的端口不用参与MSTP计算,将其设置为边缘端口。 2.配置保护功能,实现对设备或链路的保护。 3.配置设备的二层转发功能。 4.配置Eth-Trunk保证交换机SWA-SWB链路带宽和稳定性。

SWA配置

sysname SWA
#
vlan batch 2 to 20
#
stp pathcost-standard legacy
#
stp instance 1 root primary
stp instance 2 root secondary
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 Eth-Trunk1
 port link-type trunk
 port trunk allow-pass vlan 2 to 20
#
interface GigabitEthernet0/0/1
 port link-type trunk
 port trunk allow-pass vlan 2 to 20
 stp root-protection
#
interface GigabitEthernet0/0/3
 eth-trunk 1
#
interface GigabitEthernet0/0/4
 eth-trunk 1

SWB配置

sysname SWB
#
vlan batch 2 to 20
#
stp pathcost-standard legacy
#
stp instance 2 root primary
stp instance 1 root secondary
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 Eth-Trunk1
 port link-type trunk
 port trunk allow-pass vlan 2 to 20
#
interface GigabitEthernet0/0/1
 port link-type trunk
 port trunk allow-pass vlan 2 to 20
 stp root-protection
#
interface GigabitEthernet0/0/3
 eth-trunk 1
#
interface GigabitEthernet0/0/4
 eth-trunk 1

SWC配置

sysname SWC
#
vlan batch 2 to 20
#
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 GigabitEthernet0/0/1
 port link-type access
 port default vlan 10
 stp edged-port enable
#
interface GigabitEthernet0/0/2
 port link-type trunk
 port trunk allow-pass vlan 2 to 20
 stp instance 2 cost 20000
#
interface GigabitEthernet0/0/3
 port link-type trunk
 port trunk allow-pass vlan 2 to 20

SWD配置

sysname SWD
#
vlan batch 2 to 20
#
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 GigabitEthernet0/0/1
 port link-type access
 port default vlan 20
 stp edged-port enable
#
interface GigabitEthernet0/0/2
 port link-type trunk
 port trunk allow-pass vlan 2 to 20
 stp instance 1 cost 20000
#
interface GigabitEthernet0/0/3
 port link-type trunk
 port trunk allow-pass vlan 2 to 20
#