交换机端口角色（项目）

it2025-02-18 4

实验要求： 1、指定LSW1为根交换机 2、在出现环路的线路上，选举LSW4的e0/0/1接口为AP，e0/0/2接口为DP LSW1

<SW1>display current-configuration # sysname SW1 # stp instance 0 root primary # cluster enable ntdp enable ndp enable # drop illegal-mac alarm # diffserv domain default # drop-profile default # aaa authentication-scheme default authorization-scheme default accounting-scheme default domain default domain default_admin local-user admin password simple admin local-user admin service-type http # interface Vlanif1 # interface MEth0/0/1 # interface Ethernet0/0/1 # interface Ethernet0/0/2 # interface Ethernet0/0/3 # interface Ethernet0/0/4 # interface Ethernet0/0/5 # interface Ethernet0/0/6 # interface Ethernet0/0/7 # interface Ethernet0/0/8 # interface Ethernet0/0/9 # interface Ethernet0/0/10 # interface Ethernet0/0/11 # interface Ethernet0/0/12 # interface Ethernet0/0/13 # interface Ethernet0/0/14 # interface Ethernet0/0/15 # interface Ethernet0/0/16 # interface Ethernet0/0/17 # interface Ethernet0/0/18 # interface Ethernet0/0/19 # interface Ethernet0/0/20 # interface Ethernet0/0/21 # interface Ethernet0/0/22 # interface GigabitEthernet0/0/1 # interface GigabitEthernet0/0/2 # interface NULL0 # user-interface con 0 idle-timeout 0 0 user-interface vty 0 4 # return <SW1>display stp brief MSTID Port Role STP State Protection 0 Ethernet0/0/1 DESI FORWARDING NONE 0 Ethernet0/0/2 DESI FORWARDING NONE

LSW2

<SW2>DIS current-configuration # sysname SW2 # stp instance 0 priority 4096 # cluster enable ntdp enable ndp enable # drop illegal-mac alarm # diffserv domain default # drop-profile default # aaa authentication-scheme default authorization-scheme default accounting-scheme default domain default domain default_admin local-user admin password simple admin local-user admin service-type http # interface Vlanif1 # interface MEth0/0/1 # interface Ethernet0/0/1 stp instance 0 port priority 16 # interface Ethernet0/0/2 # interface Ethernet0/0/3 stp instance 0 port priority 32 # interface Ethernet0/0/4 stp instance 0 port priority 0 # interface Ethernet0/0/5 # interface Ethernet0/0/6 # interface Ethernet0/0/7 # interface Ethernet0/0/8 # interface Ethernet0/0/9 # interface Ethernet0/0/10 # interface Ethernet0/0/11 # interface Ethernet0/0/12 # interface Ethernet0/0/13 # interface Ethernet0/0/14 # interface Ethernet0/0/15 # interface Ethernet0/0/16 # interface Ethernet0/0/17 # interface Ethernet0/0/18 # interface Ethernet0/0/19 # interface Ethernet0/0/20 # interface Ethernet0/0/21 # interface Ethernet0/0/22 # interface GigabitEthernet0/0/1 # interface GigabitEthernet0/0/2 # interface NULL0 # user-interface con 0 idle-timeout 0 0 user-interface vty 0 4 # return <SW2>display stp brief MSTID Port Role STP State Protection 0 Ethernet0/0/1 ROOT FORWARDING NONE 0 Ethernet0/0/2 DESI FORWARDING NONE 0 Ethernet0/0/3 DESI FORWARDING NONE 0 Ethernet0/0/4 DESI FORWARDING NONE

LSW3

<SW3>DIS CUR # sysname SW3 # stp instance 0 priority 8192 # cluster enable ntdp enable ndp enable # drop illegal-mac alarm # diffserv domain default # drop-profile default # aaa authentication-scheme default authorization-scheme default accounting-scheme default domain default domain default_admin local-user admin password simple admin local-user admin service-type http # interface Vlanif1 # interface MEth0/0/1 # interface Ethernet0/0/1 # interface Ethernet0/0/2 # interface Ethernet0/0/3 # interface Ethernet0/0/4 # interface Ethernet0/0/5 # interface Ethernet0/0/6 # interface Ethernet0/0/7 # interface Ethernet0/0/8 # interface Ethernet0/0/9 # interface Ethernet0/0/10 # interface Ethernet0/0/11 # interface Ethernet0/0/12 # interface Ethernet0/0/13 # interface Ethernet0/0/14 # interface Ethernet0/0/15 # interface Ethernet0/0/16 # interface Ethernet0/0/17 # interface Ethernet0/0/18 # interface Ethernet0/0/19 # interface Ethernet0/0/20 # interface Ethernet0/0/21 # interface Ethernet0/0/22 # interface GigabitEthernet0/0/1 # interface GigabitEthernet0/0/2 # interface NULL0 # user-interface con 0 idle-timeout 0 0 user-interface vty 0 4 # return <SW3>display stp brief MSTID Port Role STP State Protection 0 Ethernet0/0/1 ROOT FORWARDING NONE 0 Ethernet0/0/2 ALTE DISCARDING NONE

LSW4

<SW4>DIS current-configuration # sysname SW4 # stp instance 0 priority 12288 # cluster enable ntdp enable ndp enable # drop illegal-mac alarm # diffserv domain default # drop-profile default # aaa authentication-scheme default authorization-scheme default accounting-scheme default domain default domain default_admin local-user admin password simple admin local-user admin service-type http # interface Vlanif1 # interface MEth0/0/1 # interface Ethernet0/0/1 stp instance 0 port priority 0 # interface Ethernet0/0/2 # interface Ethernet0/0/3 # interface Ethernet0/0/4 # interface Ethernet0/0/5 # interface Ethernet0/0/6 # interface Ethernet0/0/7 # interface Ethernet0/0/8 # interface Ethernet0/0/9 # interface Ethernet0/0/10 # interface Ethernet0/0/11 # interface Ethernet0/0/12 # interface Ethernet0/0/13 # interface Ethernet0/0/14 # interface Ethernet0/0/15 # interface Ethernet0/0/16 # interface Ethernet0/0/17 # interface Ethernet0/0/18 # interface Ethernet0/0/19 # interface Ethernet0/0/20 # interface Ethernet0/0/21 # interface Ethernet0/0/22 # interface GigabitEthernet0/0/1 # interface GigabitEthernet0/0/2 # interface NULL0 # user-interface con 0 idle-timeout 0 0 user-interface vty 0 4 # return <SW4>display STP brief MSTID Port Role STP State Protection 0 Ethernet0/0/1 ALTE DISCARDING NONE 0 Ethernet0/0/2 ROOT FORWARDING NONE

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