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mstp加vrrp的实验例子（原创实用版）目录1.MSTP 和 VRRP 的概述2.MSTP 加 VRRP 的实验环境搭建3.实验步骤和过程4.实验结果及分析5.实验结论和展望正文一、MSTP 和 VRRP 的概述1.MSTP（Multiple Spanning Tree Protocol）：多实例生成树协议，用于在多个 VLAN（虚拟局域网）之间实现生成树保护。
2.VRRP（Virtual Router Redundancy Protocol）：虚拟路由器冗余协议，用于提高网络设备的可靠性和冗余性。
二、MSTP 加 VRRP 的实验环境搭建1.设备：两台路由器（Router1 和 Router2），一台交换机（Switch）2.接口：Router1 的接口 G0/0/1 和 G0/0/2 分别连接到 Switch 的接口 1 和 2；Router2 的接口 G0/0/1 和 G0/0/2 分别连接到Switch 的接口 3 和 4。
3.配置：为每个接口分配不同的 VLAN，如 G0/0/1 为 VLAN10，G0/0/2 为 VLAN20。
三、实验步骤和过程1.在 Router1 上配置 MSTP 和 VRRP：a.配置 MSTP：在 Router1 上启用 MSTP，将 G0/0/1 和 G0/0/2 分别配置为 MSTP 的实例 1 和实例 2。
b.配置 VRRP：在 Router1 上启用 VRRP，将 G0/0/1 和 G0/0/2 分别配置为 VRRP 的虚拟路由器 1 和虚拟路由器 2。
2.在 Router2 上配置 MSTP 和 VRRP：a.配置 MSTP：在 Router2 上启用 MSTP，将 G0/0/1 和 G0/0/2 分别配置为 MSTP 的实例 1 和实例 2。
b.配置 VRRP：在 Router2 上启用 VRRP，将 G0/0/1 和 G0/0/2 分别配置为 VRRP 的虚拟路由器 1 和虚拟路由器 2。
H3C 7503-A<SwitchA> system-view[SwitchA] bfd echo-source-ip 11.11.11.11[SwitchA]vlan 10 20 30 40 50 60 70 80 90 4094[SwitchA] interface GigabitEthernet2[SwitchA-GigabitEthernet2] port link-type trunk[SwitchA-GigabitEthernet2] port trunk permit vlan 10 to 90[SwitchA] interface GigabitEthernet3[SwitchA-GigabitEthernet3] port link-type trunk[SwitchA-GigabitEthernet3] port trunk permit vlan 10 to 90[SwitchA] interface vlan-interface 4094[SwitchA-Vlan-interface4094] ip address 192.168.100.254 24[SwitchA] interface vlan-interface 10[SwitchA-Vlan-interface10] ip address 192.168.10.1 24[SwitchA-Vlan-interface10] vrrp vrid 10 virtual-ip 192.168.10.254 24[SwitchA-Vlan-interface10] vrrp vrid 10 priority 120[SwitchA-Vlan-interface10] vrrp vrid 10 track interface Vlan-interface4094 reduced 255 [SwitchA-Vlan-interface10]quit[SwitchA] interface vlan-interface 20[SwitchA-Vlan-interface20] ip address 192.168.20.1 24[SwitchA-Vlan-interface20] vrrp vrid 20 virtual-ip 192.168.20.254 24[SwitchA-Vlan-interface20] vrrp vrid 20 priority 120[SwitchA-Vlan-interface20] vrrp vrid 20 track interface Vlan-interface4094 reduced 255 [SwitchA-Vlan-interface20]quit[SwitchA] interface vlan-interface 30[SwitchA-Vlan-interface30] ip address 192.168.30.1 24[SwitchA-Vlan-interface30] vrrp vrid 30 virtual-ip 192.168.30.254 24[SwitchA-Vlan-interface30] vrrp vrid 30 priority 120[SwitchA-Vlan-interface30] vrrp vrid 30 track interface Vlan-interface4094 reduced 255 [SwitchA-Vlan-interface30]quit[SwitchA] interface vlan-interface 40[SwitchA-Vlan-interface40] ip address 192.168.40.1 24[SwitchA-Vlan-interface40] vrrp vrid 40 virtual-ip 192.168.40.254 24[SwitchA-Vlan-interface40] vrrp vrid 40 track 1 switchover[SwitchA-Vlan-interface40] bfd min-echo-receive-interval 10[SwitchA-Vlan-interface40] bfd detect-multiplier 3[SwitchA-Vlan-interface40]quit[SwitchA] interface vlan-interface 50[SwitchA-Vlan-interface50] ip address 192.168.50.1 24[SwitchA-Vlan-interface50] vrrp vrid 50 virtual-ip 192.168.50.254 24[SwitchA-Vlan-interface50] vrrp vrid 50 track 1 switchover[SwitchA-Vlan-interface50] bfd min-echo-receive-interval 10[SwitchA-Vlan-interface50] bfd detect-multiplier 3[SwitchA-Vlan-interface50] quit[SwitchA] interface vlan-interface 60[SwitchA-Vlan-interface60] ip address 192.168.60.1 24[SwitchA-Vlan-interface60] vrrp vrid 60 virtual-ip 192.168.60.254 24[SwitchA-Vlan-interface60] vrrp vrid 60 track 1 switchover[SwitchA-Vlan-interface60] bfd min-echo-receive-interval 10[SwitchA-Vlan-interface60] bfd detect-multiplier 3[SwitchA-Vlan-interface60] quit[SwitchA] interface vlan-interface 70[SwitchA-Vlan-interface70] ip address 192.168.70.1 24[SwitchA-Vlan-interface70] vrrp vrid 70 virtual-ip 192.168.70.254 24[SwitchA-Vlan-interface70] vrrp vrid 70 track 1 switchover[SwitchA-Vlan-interface70] bfd min-echo-receive-interval 10[SwitchA-Vlan-interface70] bfd detect-multiplier 3[SwitchA-Vlan-interface70] quit[SwitchA] interface vlan-interface 80[SwitchA-Vlan-interface80] ip address 192.168.80.1 24[SwitchA-Vlan-interface80] vrrp vrid 80 virtual-ip 192.168.80.254 24[SwitchA-Vlan-interface80] vrrp vrid 80 track 1 switchover[SwitchA-Vlan-interface80] bfd min-echo-receive-interval 10[SwitchA-Vlan-interface80] bfd detect-multiplier 3[SwitchA-Vlan-interface80] quit[SwitchA] interface vlan-interface 90[SwitchA-Vlan-interface90] ip address 192.168.90.1 24[SwitchA-Vlan-interface90] vrrp vrid 90 virtual-ip 192.168.90.254 24[SwitchA-Vlan-interface90] vrrp vrid 90 track 1 switchover[SwitchA-Vlan-interface90] bfd min-echo-receive-interval 10[SwitchA-Vlan-interface90] bfd detect-multiplier 3[SwitchA-Vlan-interface90] quit[SwitchA] track 1 bfd echo interface vlan-interface 10 to 90 remote ip 11.0.0.3 local ip 11.0.0.2[SwitchA] stp region-configuration[SwitchA-mst-region] region-name vrrp[SwitchA-mst-region] instance 1 vlan 10 20 30[SwitchA-mst-region] instance 2 vlan 40 50 60[SwitchA-mst-region] instance 3 vlan 70 80 90[SwitchA-mst-region] active region-configuration[SwitchA-mst-region] quit[SwitchA] stp instance 1 root primary[SwitchA] stp instance 2 root secondary[SwitchA] stp instance 3 root secondary[SwitchA] stp enable[SwitchA] port Gigabitethernet 6[SwitchA-GigabitEthernet6] port link-type trunk[SwitchA-GigabitEthernet6] port trunk permit vlan 10 20 30[SwitchA] port Gigabitethernet 5[SwitchA-GigabitEthernet5] port link-type trunk[SwitchA-GigabitEthernet5] port trunk permit vlan 40 50 60[SwitchA] port Gigabitethernet 4[SwitchA-GigabitEthernet4] port link-type trunk[SwitchA-GigabitEthernet4] port trunk permit vlan 70 80 90[SwitchA] port Gigabitethernet 1[SwitchA-GigabitEthernet1] port access vlan 4094[SwitchA-GigabitEthernet1] stp disable[SwitchA]ip route-static 0.0.0.0 0.0.0.0 192.168.100.100 preference 60 //内部所有主机访问外网的下一跳地址为上联设备接口地址H3C 7503-B<SwitchA> system-view[SwitchA] bfd echo-source-ip 11.11.11.11[SwitchA]vlan 10 20 30 40 50 60 70 80 90 4094[SwitchA] interface GigabitEthernet2[SwitchA-GigabitEthernet2] port link-type trunk[SwitchA-GigabitEthernet2] port trunk permit vlan 10 to 90[SwitchA] interface GigabitEthernet3[SwitchA-GigabitEthernet3] port link-type trunk[SwitchA-GigabitEthernet3] port trunk permit vlan 10 to 90[SwitchA] interface vlan-interface 4094[SwitchA-Vlan-interface4094] ip address 192.168.100.253 24。
Z 端 20.0.1.10/24Z 交换机A 交换机Vlan 2:20.0.1.1/24Vlan 3:30.0.1.1/24Vlan 4:40.0.1.1/24Vlan 5:50.0.1.1/24Vlan 3:30.0.1.3/24Vlan 4:40.0.1.3/24Vlan 5:50.0.1.3/24Mstp 元素：Name:wushan Revision:2Instance 1:vlan3,5Instance 2:vlan2,4Vlan 3,5主用路由Vlan 2,4备用路由Vlan 2:20.0.1.2/24Vlan 3:30.0.1.2/24Vlan 4:40.0.1.2/24Vlan 5:50.0.1.2/24Vlan 2,4主用路由Vlan 3,5备用路由注：mstp 同一区域中，不同交换机mstp 的3大属性（名称、修订号、instance 与vlan 的映射关系）必须完全相同。
Switch A:(config)#int range g0/23-24(config-range-if)#switchport trunk encapusulation dot1q (config-range-if)#switchport allow vlan 1-6 (config-range-if)#switchport mode trunk(config)#int g0/20(config-if)#switchport trunk encapusulation dot1q (config)#switchport allow vlan 1-6 (config-if)#switchport mode trunk(config)#int g0/11(config-if)#switchport mode access (config-if)#switchport access vlan 2(config)#spanning tree mode mst(config-mst)#spanning-tree mst configuration (config-mst)#name wushan (config-mst)#revision 2(config-mst)#instance 1 vlan 3,5(config-mst)#instance 2 vlan 2,4(config)#spanning-tree mst 1 root primary#show spanning-tree mst#show spanning-tree mst 1#show spanning-tree mst 1 detail#show spanning-tree mst int g0/23路由(config)# ip routing(config)# router ospf 1(config-router)#network 10.0.1.0 0.0.0.255 area 0(config-router)# network 20.0.1.0 0.0.0.255 area 0(config-router)#network 30.0.1.0 0.0.0.255 area 0(config-router)#network 40.0.1.0 0.0.0.255 area 0(config-router)#network 50.0.1.0 0.0.0.255 area 0//(config-router)#network 60.0.1.0 0.0.0.255 area 0#show ip ospf interface#show ip ospf database#show ip ospf neighborVrrp配置(config)#int vlan 2(config-if)#vrrp 2 ip 20.0.1.50(config-if)#vrrp 1 priority 90(config-if)#vrrp 1 timer learn(config-if)#end注: 一个vrrp组只有一个主用路由，一个或多个备用路由Vrrp group-number ip x.x.x.x x.x.x.x可以使虚拟的，也可以跟路由器的物理地址。
mstp加vrrp的实验例子（最新版）目录1.实验背景2.实验目的3.实验环境与工具4.实验步骤5.实验结果与分析6.实验结论正文1.实验背景随着科技的发展，虚拟现实技术 (Virtual Reality, VR) 已经被广泛应用在各个领域，如教育、医疗、游戏等。
VR 技术通过计算机模拟生成一个三维虚拟世界，用户可以在其中进行实时、交互式的操作。
为了提高 VR 技术的实用性和沉浸感，许多研究者开始探索如何将 VR 技术与空间定位技术 (Simultaneous Localization and Mapping, SLAM) 相结合。
在这样的背景下，本实验将探讨如何使用 MSTP（MonoSLAM）加 VRRP（VR Robot Positioning）的方法来进行空间定位和导航。
2.实验目的本实验的主要目的是验证 MSTP 加 VRRP 的方法在空间定位和导航方面的准确性和实用性。
通过比较不同的定位和导航算法，找出在 VR 环境下表现最佳的方法，为未来的 VR 应用提供技术支持。
3.实验环境与工具实验环境：计算机实验室实验设备：电脑、VR 头盔、传感器实验软件：MSTP、VRRP4.实验步骤（1）搭建实验环境：将 VR 头盔与电脑连接，启动 MSTP 和 VRRP 软件。
（2）设定实验参数：设置 MSTP 的定位精度、VRRP 的导航精度等参数。
（3）进行实验：分别使用 MSTP、VRRP 及其他算法进行定位和导航实验，记录实验结果。
（4）数据分析：对比不同算法的定位精度、导航速度等指标，分析实验结果。
5.实验结果与分析经过多次实验对比，MSTP 加 VRRP 的组合在定位精度和导航速度方面表现最佳。
与其他算法相比，MSTP 能够实现较高的定位精度，而 VRRP 在导航方面具有较快的速度。
这说明 MSTP 加 VRRP 的方法在 VR 环境下具有较高的实用性。
6.实验结论通过本次实验，我们验证了 MSTP 加 VRRP 的方法在空间定位和导航方面的准确性和实用性。
双核心（MSTP+VRRP）的拓扑实现和配置实例1 配置VRRP在实验拓扑图中，由于有多条链路产生环路，所以我们在实验初始时一定要将某些端口堵塞（初始化时已将RG-S35B的f0/1-4四个端口堵塞，在配置完毕进行测试时才可以打开）．否则产生环路后，会发现设备的cpu利用率会达到100%（使用命令show cpu查看）。
RG-S35A(config)#interface vlan 10RG-S35A(config-if)#ip address 192.168.10.254 255.255.255.0 ！配置VLAN10的IP 地址RG-S35A(config-if)#standby 1 ip 192.168.10.250 ！配置虚拟IPRG-S35A(config-if)#standby 1 preempt！设为抢占模式RG-S35A(config-if)#standby 1 priority 254 ！VLAN10的standby优先级设为254RG-S35A(config-if)#exitRG-S35A(config)#interface vlan 20 ！VLAN20的standby不设优先级,默认为100RG-S35A(config-if)#ip address 192.168.20.253 255.255.255.0 ！配置VLAN20的IP 地址RG-S35A(config-if)#standby 2 ip 192.168.20.250 ！配置虚拟IPRG-S35A(config-if)#standby 2 preempt ！设为抢占模式RG-S35A(config-if)#exitRG-S35A(config)#interface vlan 30RG-S35A(config-if)#ip address 192.168.30.254 255.255.255.0 ！配置VLAN30的IP 地址RG-S35A(config-if)#standby 3 ip 192.168.30.250 ！配置虚拟IPRG-S35A(config-if)#standby 3 preempt ！设为抢占模式RG-S35A(config-if)#standby 3 priority 254 ！VLAN30的standby优先级设为254RG-S35A(config-if)#exitRG-S35A(config)#interface vlan 40 ！VLAN20的standby不设优先级,默认为100RG-S35A(config-if)#ip address 192.168.40.253 255.255.255.0 ！配置VLAN40的IP 地址RG-S35A(config-if)#standby 4 ip 192.168.40.250 ！配置虚拟IPRG-S35A(config-if)#stand 4 preempt ！设为抢占模式RG-S35A(config-if)#exitRG-S35A(config)#exitRG-S35B把vlan20 40 设置为standby 2、4 priority 2542 配置RG-S35A与RG-S35B的端口聚合理论上，35A和35B的f0/3和f0/4端口不需要设置为trunk口，但是我们习惯上都设为trunk（已在前面做好了配置）。
全是锐捷的命令采用生成树协议只能做到链路级备份,无法做到网关级备份.MSTP与VRRP结合可以同时做到链路备份与网关级备份,极大地提高了网络的健壮性.配置要求:vlan 10以SW1为根桥,并且相应的VRRP Master也在SW1上, vlan 20以SW2为根桥,并且相应的VRRP Master也在SW2上。
配置VRRP+MSTP的重要原则是：在进行MSTP和VRRP结合配置使用时,需要注意的就是保持各VLAN的根桥与各自的VRRP Master需要保持在同一台三层交换机上。
SW1相关配置spanning-treespanning-tree mst configurationinstance 1 vlan 10instance 2 vlan 20name testrevision 1!spanning-tree mst 0 priority 4096 (设置SW1的实例1优先级最高，手动指定实例1的根桥为SW1)spanning-tree mst 1 priority 4096 (设置SW1的实例1优先级最高，手动指定实例1的根桥为SW1)spanning-tree mst 2 priority 8192interface FastEthernet 0/1switchport mode trunkinterface FastEthernet 0/2switchport mode trunkinterface Vlan 10(设置SW1上VLAN10的VRRP的优先级为150,高于默认的100-SW2上的VLAN10的VRRP优先级为100)ip address 192.168.10.2 255.255.255.0standby 10 ip 192.168.10.1standby 10 priority 150!interface Vlan 20ip address 192.168.20.3 255.255.255.0standby 20 ip 192.168.20.1SW2相关配置spanning-treespanning-tree mst configurationinstance 1 vlan 10instance 2 vlan 20name testrevision 1!spanning-tree mst 0 priority 8192spanning-tree mst 1 priority 8192spanning-tree mst 2 priority 4096 (设置SW1的实例1优先级最高，手动指定实例1的根桥为SW1)interface FastEthernet 0/1switchport mode trunkinterface FastEthernet 0/2switchport mode trunkinterface Vlan 10ip address 192.168.10.3 255.255.255.0standby 10 ip 192.168.10.1!interface Vlan 20(设置SW1上VLAN10的VRRP的优先级为150,高于默认的100)ip address 192.168.20.2 255.255.255.0standby 20 ip 192.168.20.1standby 20 priority 150SW3相关配置spanning-treespanning-tree mst configurationinstance 1 vlan 10instance 2 vlan 20name testrevision 1!interface fastEthernet 0/1switchport mode trunkinterface fastEthernet 0/2switchport mode trunkVRRP协议状态检查SW1#sh standbyIf Group State Priority Preempt Interval Virtual IP Auth ------- ----- ------ -------- ------- -------- --------------- -------- VL10 10 master 150 may 1 192.168.10.1VL20 20 backup 100 may 1 192.168.20.1SW2#sh standbyIf Group State Priority Preempt Interval Virtual IP Auth ------- ----- ------ -------- ------- -------- --------------- -------- VL10 10 backup 100 may 1 192.168.10.1VL20 20 master 150 may 1 192.168.20.1生成树协议状态检查实例1的根桥在SW1上，实例2的根桥在SW2上。
VRRP+MSTP配置VRRP+MSTP（多实例⽣成树+双路由冗余）实现负载分担MSTP (多⽣成树) 每个VLAN或者⼏个VLAN拥有⼀颗⽣成树，基于实例的⽣成树。
instance 1、instance 2 每个实例拥有⼀颗⽣成树。
MSTP可以实现多VLAN 的负载分担，可以实现多⼚商对接。
VRRP虚拟路由冗余协议(Virtual Router Redundancy Protocol)是由IETF提出的解决局域⽹中配置静态⽹关出现单点失效现象的路由协议。
拓扑如下：交换机与交换机之间的链路为trunk类型，放⾏vlan10 20SW1配置：[sw1]vlan batch 10 20 #创建vlan10 20[sw1-Vlanif10]dis this#interface Vlanif10ip address 192.168.10.1 255.255.255.0 #配置物理⽹关地址vrrp vrid 1 virtual-ip 192.168.10.254 #配置vrrp组1 配置虚拟⽹关地址vrrp vrid 1 priority 120 #配置优先级为120，默认100数字越⼤越优先，使它成为vlan10的Mastervrrp vrid 1 track interface GigabitEthernet0/0/3 reduced 30 #检测上联端⼝，如果断开优先级降低30（之后会作为backup）#[sw1-Vlanif20]dis this#interface Vlanif20ip address 192.168.20.1 255.255.255.0 #配置vlan20的物理⽹关vrrp vrid 2 virtual-ip 192.168.20.254 #配置vlan20的虚拟⽹关vrrp vrid 2 preempt-mode timer delay 20 #延迟20秒后抢占MSTP配置[sw1]stp mode mstp #配置stp模式为mstp[sw1]stp region-configuration #进⼊stp配置模式[sw1-mst-region]dis this#stp region-configurationregion-name HW #配置域名为HWrevision-level 1 #配置版本等级为1（可选）instance 10 vlan 10 #配置vlan10 加⼊实例10instance 20 vlan 20 #配置vlan20 加⼊实例20active region-configuration#[sw1]stp instance 10 root primary #配置实例10为根[sw1]stp instance 20 root secondary #配置实例20为备份根SW2配置：[sw2]vlan batch 10 20[sw2-Vlanif10]dis this#interface Vlanif10ip address 192.168.10.2 255.255.255.0 #配置vlan10⽹关vrrp vrid 1 virtual-ip 192.168.10.254 #配置vrrp组1 配置虚拟⽹关和SW1⼀样vrrp vrid 1 preempt-mode timer delay 20 #延迟20s后抢占#[sw2-Vlanif20]dis this#interface Vlanif20ip address 192.168.20.2 255.255.255.0 #配置vlan20⽹关vrrp vrid 2 virtual-ip 192.168.20.254 #配置vrrp组2 配置虚拟⽹关和SW1⼀样vrrp vrid 2 priority 120 #配置优先级为120，使vrrp2 成为vlan20的Mastervrrp vrid 2 track interface GigabitEthernet0/0/22 reduced 30 #配置上联链路检测，如果断开优先级减去30 使它成为backup#MSTP配置[sw2]stp mode mstp #配置stp模式为mstp[sw2]stp region-configuration #进⼊stp配置模式[sw2-mst-region]dis this#stp region-configurationregion-name HW #配置域名为HWrevision-level 1 #配置版本等级为1（可选）instance 10 vlan 10 #配置vlan10 加⼊实例10instance 20 vlan 20 #配置vlan20 加⼊实例20active region-configuration#[sw2]stp instance 20 root primary #配置实例20为根[sw2]stp instance 10 root secondary #配置实例10为备份根SW3配置：[sw3]vlan batch 10 20MSTP配置[sw3]stp mode mstp #配置stp模式为mstp[sw3]stp region-configuration #进⼊stp配置模式[sw3-mst-region]dis this#stp region-configurationregion-name HW #配置域名为HWrevision-level 1 #配置版本等级为1（可选）instance 10 vlan 10 #配置vlan10 加⼊实例10instance 20 vlan 20 #配置vlan20 加⼊实例20active region-configuration#SW4配置：[sw4]vlan batch 10 20MSTP配置[sw4]stp mode mstp #配置stp模式为mstp[sw4]stp region-configuration #进⼊stp配置模式[sw4-mst-region]dis this#stp region-configurationregion-name HW #配置域名为HWrevision-level 1 #配置版本等级为1（可选）instance 10 vlan 10 #配置vlan10 加⼊实例10instance 20 vlan 20 #配置vlan20 加⼊实例20active region-configuration#测试效果：可以看出来PC3⾛的是 sw1的⽹关PC4⾛的是SW2的⽹关假设SW1的上联链路断开：SW2接管了vlan10成为了Master<sw2>dis vrrpVlanif10 | Virtual Router 10State : Master #sw2变成了vlan10的Master Virtual IP : 192.168.10.254Master IP : 192.168.10.2PriorityRun : 100PriorityConfig : 100MasterPriority : 100Preempt : YES Delay Time : 20 sTimerRun : 1 sTimerConfig : 1 sAuth type : NONEVirtual MAC : 0000-5e00-010aCheck TTL : YESConfig type : normal-vrrpCreate time : 2021-09-0720:41:05 UTC-08:00Last change time : 2021-09-0810:39:48 UTC-08:00可以看出来PC3的数据从SW1切换到了SW2上End。
VRRP+MSTP实验拓扑图SWASWB SW3Vlan 10,20Vlan 10,20 1 1 链路聚合 2 2 23-2423-24 Vlan 10,20 Vlan 10 ip:192.168.10.252 虚拟网关地址:192.168.10.254 Vlan 20 ip:192.168.20.252 虚拟网关地址:192.168.20.254 Vlan 10 ip:192.168.10.253虚拟网关地址:192.168.10.254Vlan 20 ip:192.168.20.253虚拟网关地址:192.168.20.254Vlan 10 用户网关地址:192.168.10.254Vlan 20 用户网关地址:192.168.20.254要求vlan10的用户流量在SWA 上，vlan 20的用户流量在SWB 上VRRP 配置SWA 的配置SWA(config)#interface Vlan 10(设置SWA 上VLAN10的VRRP 的优先级为150,高于默认的100-SWB 上的VLAN10的VRRP 优先级为100)SWA(config-if)#ip address 192.168.10.253 255.255.255.0SWA(config-if)#vrrp 10 ip 192.169.10.254SWA(config-if)#vrrp 10 priority 150SWA(config-if)#exitSWA(config)#interface Vlan 20SWA(config-if)#ip address 192.168.20.253 255.255.255.0SWA(config-if)#vrrp 20 ip 192.168.20.254VRRP配置（续）SWB的配置SWB(config)#interface Vlan 10SWB(config-if)#ip address 192.168.10.252 255.255.255.0SWB(config-if)#vrrp 10 ip 192.169.10.254SWB(config-if)#exitSWB(config)#interface Vlan 20SWB(config-if)#ip address 192.168.20.252 255.255.255.0SWB(config-if)#vrrp 20 ip 192.168.20.254(设置SWA上VLAN20的VRRP的优先级为150,高于默认的100-SWB 上的VLAN20的VRRP优先级为100)SWB(config-if)#vrrp 20 priority 150交换机上配置VRRP提问：怎么配置VRRP回答：步骤一：Master：ruijie(config)#track 1 interface f0/0 ---端口追踪ruijie(config)#interface Vlan 10ruijie(config-if)#ip addr 10.10.10.1 255.255.255.0ruijie(config-if)#vrrp 1 priority 120 ---设置优先级，默认100，优先级高的成为主ruijie(config-if)#vrrp 1 ip 10.10.10.10 ---配置虚拟网关ruijie(config-if)#vrrp 1 timer advertise 3 ---调定时器，可选ruijie(config-if)#vrrp 1 preempt ---配抢占ruijie(config-if)#vrrp 1 track 1 100 ---追踪端口优先级降低值步骤二：Backup:ruijie(config)#interface Vlan 10ruijie(config-if)#ip addr 10.10.10.2 255.255.255.0ruijie(config-if)#vrrp 1 priority 100 ---设置优先级，默认100ruijie(config-if)#vrrp 1 ip 10.10.10.10ruijie(config-if)#vrrp 1 timer advertise 3 ---调定时器，可选ruijie(config-if)#vrrp 1 preempt ---配抢占验证：验证结果show vrrp [brief]show vrrp interface 接口show track小结：简单来说 VRRP 是一种容错协议 它为具有组播或广播能力的局域网 如以太网 设计 它保证当局域网内主机的下一跳路由器出现故障时 可以及时的由另一台路由器来代替 从而保持通讯的连续性和可靠性 为了使VRRP 工作 要在路由器上配置虚拟路由器号和虚拟IP 地址 同时产生一个虚拟MAC 地址 这样在这个网络中就加入了一个虚拟路由器 而网络上的主机与虚拟路由器通信 无需了解这个网络上物理路由器的任何信息 一个虚拟路由器由一个主路由器和若干个备份路由器组成 主路由器实现真正的转发功能 当主路由器出现故障时 一个备份路由器将成为新的主路由器 接替它的工作。
ĉ MSTP+VRRP ጱ෪" Ǐď?3 Ý2009-06-03 20:29:00 266 01 ?3VRRP෪"Ī /Óྞ 'ʦɟࡘ/Ǐɟ "ࡾ"Ù ༭ÐÔ ੰ ༭ఉ RG-S35Bጱf0/1-4Ĩ ੰ ?3 ɲ ༭"ċࡾ"ľ ࡘ/Ǐɟč Ǐ ጱcpu /ለ ɰ 100% Ü/Ďࡽshow cpu dzRG-S35A(config-if)#ip address 192.168.10.254 255.255.255.0RG-S35A(config-if)#standby 1 ip 192.168.10.250RG-S35A(config-if)#standby 1 preemptRG-S35A(config-if)#standby 1 priority 254RG-S35A(config-if)#exitRG-S35A(config)#interface vlan 20RG-S35A(config-if)#ip address 192.168.20.253 255.255.255.0RG-S35A(config-if)#standby 2 ip 192.168.20.250RG-S35A(config-if)#standby 2 preemptRG-S35A(config-if)#exitRG-S35A(config)#interface vlan 30RG-S35A(config-if)#ip address 192.168.30.254 255.255.255.0RG-S35A(config-if)#standby 3 ip 192.168.30.250RG-S35A(config-if)#standby 3 preemptRG-S35A(config-if)#standby 3 priority 254RG-S35A(config-if)#exitRG-S35A(config)#interface vlan 40RG-S35A(config-if)#ip address 192.168.40.253 255.255.255.0RG-S35A(config-if)#standby 4 ip 192.168.40.250RG-S35A(config-if)#stand 4 preemptRG-S35A(config-if)#exitRG-S35A(config)#exitRG-S35B vlan20 40 standby 2 4 priority 2542 ?35* 6 $Ñ5* 6 %ጱ ੰ4ઉ ࠳ $ď %ጱI ďI ੰÑʺ 3 WUXQNੰ &"Ù ő࠳ɾ WUXQN ఉ E ࡃ?3ʅჼ Ð DJJUHJDWH3RUWጱVZLWFKSRUW PRGH?3 WUXQN Ŀ ॥᯿ DFFHVV ĿRG-S35A(config-if)#port-group 1RG-S35A(config-if)#exitRG-S35A(config)#interface f0/4RG-S35A(config-if)#port-group 1RG-S35A(config-if)#endRG-S35A(config)#interface aggregatePort 1RG-S35A(config-if)#switchport mode trunkRG-S35A(config-if)#exitRG-S35BRG-S35B(config)#interface f0/3RG-S35B(config-if)#no shutdownRG-S35B(config-if)#interface f0/4RG-S35B(config-if)#no shutdownRG-S35B(config-if)#exit35BRG-S35A(config)#interface vlan 20RG-S35A(config-if)#ip ospf cost 65535RG-S35A(config-if)#exitRG-S35A(config)#interface vlan 40RG-S35A(config-if)#ip ospf cost 65535RG-S35A(config-if)#exitRG-S35BRG-S35B(config)#interface vlan 10 RG-S35B(config-if)#ip ospf cost 65535RG-S35B(config-if)#exitRG-S35B(config)#interface vlan 30 RG-S35B(config-if)#ip ospf cost 65535RG-S35B(config-if)#exit3 ?30673RG-S21A(config)#spanning-tree mode mstpRG-S21A(config)#spanning-tree mst configurationRG-S21A(config-mst)#instance 1 VLAN 10,30RG-S21A(config-mst)#revision 1RG-S21A(config-mst)#instance 2 vlan 20,40RG-S21A(config-mst)#revision 1RG-S21A(config-mst)#exitRG-S21BRG-S35ARG-S35A(config)#spanning-tree mst 1 priority 4096RG-S35A(config)#spanning-tree mst 2 priority 81921RG-S35BRG-S35B(config)#spanning-tree mst 2 priority 4096RG-S35B(config)#spanning-tree mst 1 priority 8192 RG-S35B(config)#interface range fastEthernet 0/1-2RG-S35B(config-if-range)#no shutdown4RG-S35A#show ip routeRG-S35B#show standbyRG-S35B#show ip routeVLAN103035A,VLAN204035B,standbyRG-S35C#show ip route。
交换机vrrp+mstp配置实例锐捷tac贾文宇一、组网需求1、switch a 、switch b选用两台锐捷的s5750 ；switch c 、shwich d 选用锐捷的s3750和s37602、全网共有两个业务vlan ,为vlan 10 、vlan 203、Switch a 、switch b 都分别对两vlan起用两vrrp组，实现两组的业务的负载分担和备份。
4、Switch a、switch b、switch c、switch d 都起用mstp多生成数协议，并且所有设备都属于同一个mst域，且实例映射一致（vlan 10映射实例1、vlan 20映射实例2 其他vlan映射默认实例0）。
5、Vlan 10业务以switch a为根桥；vlan 20业务以switch b为根桥；实现阻断网络环路，并能实现不同vlan数据流负载分担功能。
二、组网图三、配置步骤Switch a配置：s1#show runBuilding configuration...Current configuration : 1651 bytes!version RGNOS 10.2.00(2), Release(29287)(Tue Dec 25 20:39:14 CST 2007 -ngcf49) hostname s1co-operate enable!!!vlan 1!vlan 10!vlan 20!!no service password-encryption!spanning-tree 开启生成树（默认为mstp）spanning-tree mst configuration 进入mst配置模式revision 1 指定MST revision number 为1name region1 指定mst配置名称instance 0 vlan 1-9, 11-19, 21-4094 缺省情况下vlan都属于实例0instance 1 vlan 10 手工指定vlan10属于实例1instance 2 vlan 20 手工指定vlan20属于实例2spanning-tree mst 1 priority 0 指定实例1的优先级为0（为根桥）spanning-tree mst 2 priority 4096 指定实例2的优先级为4096interface GigabitEthernet 0/1switchport access vlan 10 配置g0/1属于vlan10!interface GigabitEthernet 0/2switchport access vlan 20 配置g0/2属于vlan 20!interface GigabitEthernet 0/3!..interface GigabitEthernet 0/24 设置g0/24为trunk接口且允许vlan10/20通过switchport mode trunk!interface VLAN 10 创建vlan 10 svi接口ip address 192.168.10.1 255.255.255.0 配置ip地址vrrp 1 priority 120 配置vrrp组1 优先级为120vrrp 1 ip 192.168.10.254 配置vrrp组1虚拟ip地址为192.168.10.254!interface VLAN 20 创建vlan 20 svi接口ip address 192.168.20.1 255.255.255.0 配置ip地址vrrp 2 ip 192.168.20.254 配置vrrp组2虚拟ip地址为192.168.20.254默认vrrp组的优先级为100默认不显示!line con 0line vty 0 4logins1#show vlanVLAN Name Status Ports---- -------------------------------- --------- ----------------------------------1 VLAN0001 STA TIC Gi0/3, Gi0/4, Gi0/5, Gi0/6Gi0/7, Gi0/8, Gi0/9, Gi0/10Gi0/11, Gi0/12, Gi0/13, Gi0/14Gi0/15, Gi0/16, Gi0/17, Gi0/18Gi0/19, Gi0/20, Gi0/21, Gi0/22Gi0/23, Gi0/2410 VLAN0010 STATIC Gi0/1, Gi0/2420 VLAN0020 STATIC Gi0/2, Gi0/24Switch b配置：s2#show runBuilding configuration...Current configuration : 1607 bytes!version RGNOS 10.2.00(2), Release(27932)(Thu Dec 13 10:32:09 CST 2007 -ngcf31) hostname s2!!!vlan 1!vlan 10!vlan 20!!no service password-encryption!spanning-treespanning-tree mst configurationrevision 1name region1instance 0 vlan 1-9, 11-19, 21-4094instance 1 vlan 10instance 2 vlan 20spanning-tree mst 1 priority 4096spanning-tree mst 2 priority 0interface GigabitEthernet 0/1switchport access vlan 10!interface GigabitEthernet 0/2switchport access vlan 20!..interface GigabitEthernet 0/24switchport mode trunk!interface VLAN 10ip address 192.168.10.2 255.255.255.0vrrp 1 ip 192.168.10.254!interface VLAN 20ip address 192.168.20.2 255.255.255.0vrrp 2 priority 120vrrp 2 ip 192.168.20.254!line con 0line vty 0 4login!!ends2#show vlanVLAN Name Status Ports---- -------------------------------- --------- -----------------------------------1 VLAN0001 STA TIC Gi0/3, Gi0/4, Gi0/5, Gi0/6Gi0/7, Gi0/8, Gi0/9, Gi0/10Gi0/11, Gi0/12, Gi0/13, Gi0/14Gi0/15, Gi0/16, Gi0/17, Gi0/18Gi0/19, Gi0/20, Gi0/21, Gi0/22Gi0/23, Gi0/2410 VLAN0010 STATIC Gi0/1, Gi0/2420 VLAN0020 STATIC Gi0/2, Gi0/24Switch c配置：s3#show runBuilding configuration...Current configuration : 1540 bytes!version RGNOS 10.2.00(2), Release(28794)(Fri Dec 21 09:27:15 CST 2007 -ngcf32) hostname s3!vlan 1!vlan 10!!service password-encryption!spanning-treespanning-tree mst configurationrevision 1name region1instance 0 vlan 1-9, 11-19, 21-4094instance 1 vlan 10instance 2 vlan 20spanning-tree mst 1 priority 0spanning-tree mst 2 priority 4096interface FastEthernet 0/1switchport access vlan 10!interface FastEthernet 0/2switchport access vlan 10!..interface GigabitEthernet 0/25!interface GigabitEthernet 0/26!interface GigabitEthernet 0/27!interface GigabitEthernet 0/28!interface VLAN 10ip address 192.168.10.3 255.255.255.0ip route 0.0.0.0 0.0.0.0 192.168.10.254!!line con 0line vty 0 4loginSwitch d配置：s4#show runBuilding configuration...Current configuration : 1066 bytes!version RGNOS 10.2.00(2), Release(27932)(Thu Dec 13 10:31:41 CST 2007 -ngcf32) hostname s4!vlan 1!vlan 20!!no service password-encryption!spanning-treespanning-tree mst configurationrevision 1name region1instance 0 vlan 1-9, 11-19, 21-4094instance 1 vlan 10instance 2 vlan 20spanning-tree mst 1 priority 4096spanning-tree mst 2 priority 0interface GigabitEthernet 0/1switchport access vlan 20!interface GigabitEthernet 0/2switchport access vlan 20!..interface GigabitEthernet 0/12!interface VLAN 20ip address 192.168.20.3 255.255.255.0!!!!ip route 0.0.0.0 0.0.0.0 192.168.20.254!!line con 0line vty 0 4login!四、查看vrrp、mstp信息Switch a 信息：s1#show vrrp 查看vrrp 信息VLAN 10 - Group 1State is MasterVirtual IP address is 192.168.10.254 configured Virtual MAC address is 0000.5e00.0101 Advertisement interval is 1 secPreemption is enabledmin delay is 0 secPriority is 120Master Router is 192.168.10.1 (local), priority is 120 Master Advertisement interval is 1 secMaster Down interval is 3 secVLAN 20 - Group 2State is BackupVirtual IP address is 192.168.20.254 configured Virtual MAC address is 0000.5e00.0102 Advertisement interval is 1 secPreemption is enabledmin delay is 0 secPriority is 100Master Router is 192.168.20.2 , priority is 120 Master Advertisement interval is 1 secMaster Down interval is 3 secs1#s1#s1#s1#show spanning-tree interface gigabitEthernet 0/1 查看g0/1接口stp状态信息PortAdminPortFast : DisabledPortOperPortFast : DisabledPortAdminAutoEdge : EnabledPortOperAutoEdge : DisabledPortAdminLinkType : autoPortOperLinkType : point-to-pointPortBPDUGuard : DisabledPortBPDUFilter : Disabled###### MST 0 vlans mapped :1-9, 11-19, 21-4094PortState : forwardingPortPriority : 128PortDesignatedRoot : 8000.001a.a909.8fe0PortDesignatedCost : 0PortDesignatedBridge :8000.00d0.f836.ed70PortDesignatedPort : 8001PortForwardTransitions : 6PortAdminPathCost : 200000PortOperPathCost : 200000PortRole : designatedPort###### MST 1 vlans mapped :10PortState : forwardingPortPriority : 128PortDesignatedRoot : 0001.00d0.f823.ef82PortDesignatedCost : 0PortDesignatedBridge :0001.00d0.f823.ef82PortDesignatedPort : 8001PortForwardTransitions : 5PortAdminPathCost : 200000PortOperPathCost : 200000PortRole : rootPort###### MST 2 vlans mapped :20PortState : forwardingPortPriority : 128PortDesignatedRoot : 0002.001a.a909.8fe0PortDesignatedCost : 0PortDesignatedBridge :1002.00d0.f836.ed70PortDesignatedPort : 8001PortForwardTransitions : 4PortAdminPathCost : 200000PortOperPathCost : 200000PortRole : designatedPorts1#s1#s1#show spanning-tree interface gigabitEthernet 0/2 查看g0/2接口stp状态信息PortAdminPortFast : DisabledPortOperPortFast : DisabledPortAdminAutoEdge : EnabledPortOperAutoEdge : DisabledPortAdminLinkType : autoPortOperLinkType : point-to-pointPortBPDUGuard : DisabledPortBPDUFilter : Disabled###### MST 0 vlans mapped :1-9, 11-19, 21-4094PortState : forwardingPortPriority : 128PortDesignatedRoot : 8000.001a.a909.8fe0PortDesignatedCost : 0PortDesignatedBridge :8000.00d0.f836.ed70PortDesignatedPort : 8002PortForwardTransitions : 5PortAdminPathCost : 20000PortOperPathCost : 20000PortRole : designatedPort###### MST 1 vlans mapped :10PortState : forwardingPortPriority : 128PortDesignatedRoot : 0001.00d0.f823.ef82PortDesignatedCost : 0PortDesignatedBridge :0001.00d0.f836.ed70PortDesignatedPort : 8002PortForwardTransitions : 4PortAdminPathCost : 20000PortOperPathCost : 20000PortRole : designatedPort###### MST 2 vlans mapped :20PortState : discardingPortPriority : 128PortDesignatedRoot : 0002.001a.a909.8fe0PortDesignatedCost : 0PortDesignatedBridge :0002.00d0.f8d7.ae12PortDesignatedPort : 8002PortForwardTransitions : 3PortAdminPathCost : 20000PortOperPathCost : 20000PortRole : alternatePorts1#s1#s1#show spanning-tree interface gigabitEthernet 0/24 g0/24接口stp状态信息PortAdminPortFast : DisabledPortOperPortFast : DisabledPortAdminAutoEdge : EnabledPortOperAutoEdge : DisabledPortAdminLinkType : autoPortOperLinkType : point-to-pointPortBPDUGuard : DisabledPortBPDUFilter : Disabled###### MST 0 vlans mapped :1-9, 11-19, 21-4094PortState : forwardingPortPriority : 128PortDesignatedRoot : 8000.001a.a909.8fe0PortDesignatedCost : 0PortDesignatedBridge :8000.001a.a909.8fe0PortDesignatedPort : 8018PortForwardTransitions : 5PortAdminPathCost : 20000PortOperPathCost : 20000PortRole : rootPort###### MST 1 vlans mapped :10PortState : forwardingPortPriority : 128PortDesignatedRoot : 0001.00d0.f823.ef82PortDesignatedCost : 0PortDesignatedBridge :0001.00d0.f836.ed70PortDesignatedPort : 8018PortForwardTransitions : 5PortAdminPathCost : 20000PortOperPathCost : 20000PortRole : designatedPort###### MST 2 vlans mapped :20PortState : forwardingPortPriority : 128PortDesignatedRoot : 0002.001a.a909.8fe0 PortDesignatedCost : 0PortDesignatedBridge :0002.001a.a909.8fe0 PortDesignatedPort : 8018 PortForwardTransitions : 4PortAdminPathCost : 20000PortOperPathCost : 20000PortRole : rootPorts1#Switch b 信息：s2#show vrrpVLAN 10 - Group 1State is BackupVirtual IP address is 192.168.10.254 configured Virtual MAC address is 0000.5e00.0101 Advertisement interval is 1 secPreemption is enabledmin delay is 0 secPriority is 100Master Router is 192.168.10.1 , priority is 120 Master Advertisement interval is 1 secMaster Down interval is 3 secVLAN 20 - Group 2State is MasterVirtual IP address is 192.168.20.254 configured Virtual MAC address is 0000.5e00.0102 Advertisement interval is 1 secPreemption is enabledmin delay is 0 secPriority is 120Master Router is 192.168.20.2 (local), priority is 120 Master Advertisement interval is 1 secMaster Down interval is 3 secs2#s2#s2#s2#s2#s2#s2#show spanning-tree interface gigabitEthernet 0/1 PortAdminPortFast : Disabled PortOperPortFast : Disabled PortAdminAutoEdge : Enabled PortOperAutoEdge : Disabled PortAdminLinkType : autoPortOperLinkType : point-to-point PortBPDUGuard : DisabledPortBPDUFilter : Disabled###### MST 0 vlans mapped :1-9, 11-19, 21-4094 PortState : forwardingPortPriority : 128PortDesignatedRoot : 8000.001a.a909.8fe0 PortDesignatedCost : 0 PortDesignatedBridge :8000.001a.a909.8fe0 PortDesignatedPort : 8001 PortForwardTransitions : 1 PortAdminPathCost : 200000 PortOperPathCost : 200000PortRole : designatedPort###### MST 1 vlans mapped :10PortState : forwardingPortPriority : 128PortDesignatedRoot : 0001.00d0.f823.ef82 PortDesignatedCost : 0 PortDesignatedBridge :0001.00d0.f823.ef82 PortDesignatedPort : 8002 PortForwardTransitions : 2 PortAdminPathCost : 200000 PortOperPathCost : 200000PortRole : rootPort###### MST 2 vlans mapped :20PortState : forwardingPortPriority : 128PortDesignatedRoot : 0002.001a.a909.8fe0 PortDesignatedCost : 0 PortDesignatedBridge :0002.001a.a909.8fe0 PortDesignatedPort : 8001PortForwardTransitions : 1 PortAdminPathCost : 200000 PortOperPathCost : 200000PortRole : designatedPorts2#s2#s2#s2#show spanning-tree interface gigabitEthernet 0/2 PortAdminPortFast : Disabled PortOperPortFast : Disabled PortAdminAutoEdge : Enabled PortOperAutoEdge : Disabled PortAdminLinkType : autoPortOperLinkType : point-to-point PortBPDUGuard : DisabledPortBPDUFilter : Disabled###### MST 0 vlans mapped :1-9, 11-19, 21-4094 PortState : forwardingPortPriority : 128PortDesignatedRoot : 8000.001a.a909.8fe0 PortDesignatedCost : 0 PortDesignatedBridge :8000.001a.a909.8fe0 PortDesignatedPort : 8002 PortForwardTransitions : 1 PortAdminPathCost : 20000 PortOperPathCost : 20000PortRole : designatedPort###### MST 1 vlans mapped :10PortState : forwardingPortPriority : 128PortDesignatedRoot : 0001.00d0.f823.ef82 PortDesignatedCost : 0 PortDesignatedBridge :1001.001a.a909.8fe0 PortDesignatedPort : 8002 PortForwardTransitions : 2 PortAdminPathCost : 20000 PortOperPathCost : 20000PortRole : designatedPort###### MST 2 vlans mapped :20PortState : forwardingPortPriority : 128PortDesignatedRoot : 0002.001a.a909.8fe0 PortDesignatedCost : 0PortDesignatedBridge :0002.001a.a909.8fe0 PortDesignatedPort : 8002 PortForwardTransitions : 1PortAdminPathCost : 20000PortOperPathCost : 20000PortRole : designatedPorts2#s2#s2#s2#s2#show spanning-tree interface gigabitEthernet 0/24 PortAdminPortFast : Disabled PortOperPortFast : Disabled PortAdminAutoEdge : Enabled PortOperAutoEdge : Disabled PortAdminLinkType : autoPortOperLinkType : point-to-point PortBPDUGuard : DisabledPortBPDUFilter : Disabled###### MST 0 vlans mapped :1-9, 11-19, 21-4094 PortState : forwardingPortPriority : 128PortDesignatedRoot : 8000.001a.a909.8fe0 PortDesignatedCost : 0PortDesignatedBridge :8000.001a.a909.8fe0 PortDesignatedPort : 8018 PortForwardTransitions : 1PortAdminPathCost : 20000PortOperPathCost : 20000PortRole : designatedPort###### MST 1 vlans mapped :10PortState : discardingPortPriority : 128PortDesignatedRoot : 0001.00d0.f823.ef82 PortDesignatedCost : 0PortDesignatedBridge :0001.00d0.f836.ed70 PortDesignatedPort : 8018 PortForwardTransitions : 1PortAdminPathCost : 20000 PortOperPathCost : 20000PortRole : alternatePort###### MST 2 vlans mapped :20PortState : forwardingPortPriority : 128PortDesignatedRoot : 0002.001a.a909.8fe0 PortDesignatedCost : 0 PortDesignatedBridge :0002.001a.a909.8fe0 PortDesignatedPort : 8018 PortForwardTransitions : 1 PortAdminPathCost : 20000 PortOperPathCost : 20000PortRole : designatedPorts2#Switch c 信息：s3#show spanning-tree interface fastEthernet 0/1 PortAdminPortFast : Disabled PortOperPortFast : Disabled PortAdminAutoEdge : Enabled PortOperAutoEdge : Disabled PortAdminLinkType : auto PortOperLinkType : point-to-point PortBPDUGuard : DisabledPortBPDUFilter : Disabled###### MST 0 vlans mapped :1-9, 11-19, 21-4094 PortState : discardingPortPriority : 128PortDesignatedRoot : 8000.001a.a909.8fe0 PortDesignatedCost : 0 PortDesignatedBridge :8000.00d0.f836.ed70 PortDesignatedPort : 8001 PortForwardTransitions : 1 PortAdminPathCost : 200000 PortOperPathCost : 200000PortRole : alternatePort###### MST 1 vlans mapped :10PortState : forwardingPortPriority : 128PortDesignatedRoot : 0001.00d0.f823.ef82 PortDesignatedCost : 0 PortDesignatedBridge :0001.00d0.f823.ef82 PortDesignatedPort : 8001 PortForwardTransitions : 1 PortAdminPathCost : 200000 PortOperPathCost : 200000PortRole : designatedPort###### MST 2 vlans mapped :20PortState : discardingPortPriority : 128PortDesignatedRoot : 0002.001a.a909.8fe0 PortDesignatedCost : 0 PortDesignatedBridge :1002.00d0.f836.ed70 PortDesignatedPort : 8001 PortForwardTransitions : 0 PortAdminPathCost : 200000 PortOperPathCost : 200000PortRole : alternatePorts3#s3#s3#s3#s3#show spanning-tree interface fastEthernet 0/2 PortAdminPortFast : Disabled PortOperPortFast : Disabled PortAdminAutoEdge : Enabled PortOperAutoEdge : Disabled PortAdminLinkType : auto PortOperLinkType : point-to-point PortBPDUGuard : DisabledPortBPDUFilter : Disabled###### MST 0 vlans mapped :1-9, 11-19, 21-4094 PortState : forwardingPortPriority : 128PortDesignatedRoot : 8000.001a.a909.8fe0 PortDesignatedCost : 0 PortDesignatedBridge :8000.001a.a909.8fe0 PortDesignatedPort : 8001PortForwardTransitions : 1 PortAdminPathCost : 200000 PortOperPathCost : 200000PortRole : rootPort###### MST 1 vlans mapped :10PortState : forwardingPortPriority : 128PortDesignatedRoot : 0001.00d0.f823.ef82 PortDesignatedCost : 0 PortDesignatedBridge :0001.00d0.f823.ef82 PortDesignatedPort : 8002 PortForwardTransitions : 2 PortAdminPathCost : 200000 PortOperPathCost : 200000PortRole : designatedPort###### MST 2 vlans mapped :20PortState : forwardingPortPriority : 128PortDesignatedRoot : 0002.001a.a909.8fe0 PortDesignatedCost : 0 PortDesignatedBridge :0002.001a.a909.8fe0 PortDesignatedPort : 8001 PortForwardTransitions : 1 PortAdminPathCost : 200000 PortOperPathCost : 200000PortRole : rootPorts3#Switch d 信息：s4#show spanning-tree interface gigabitEthernet 0/1 PortAdminPortFast : Disabled PortOperPortFast : Disabled PortAdminAutoEdge : Enabled PortOperAutoEdge : Disabled PortAdminLinkType : autoPortOperLinkType : point-to-point PortBPDUGuard : DisabledPortBPDUFilter : Disabled###### MST 0 vlans mapped :1-9, 11-19, 21-4094 PortState : forwardingPortPriority : 128PortDesignatedRoot : 8000.001a.a909.8fe0 PortDesignatedCost : 0 PortDesignatedBridge :8000.001a.a909.8fe0 PortDesignatedPort : 8002 PortForwardTransitions : 1 PortAdminPathCost : 20000 PortOperPathCost : 20000PortRole : rootPort###### MST 1 vlans mapped :10PortState : discardingPortPriority : 128PortDesignatedRoot : 0001.00d0.f823.ef82 PortDesignatedCost : 0 PortDesignatedBridge :1001.001a.a909.8fe0 PortDesignatedPort : 8002 PortForwardTransitions : 1 PortAdminPathCost : 20000 PortOperPathCost : 20000PortRole : alternatePort###### MST 2 vlans mapped :20PortState : forwardingPortPriority : 128PortDesignatedRoot : 0002.001a.a909.8fe0 PortDesignatedCost : 0 PortDesignatedBridge :0002.001a.a909.8fe0 PortDesignatedPort : 8002 PortForwardTransitions : 1 PortAdminPathCost : 20000 PortOperPathCost : 20000PortRole : rootPorts4#s4#s4#s4#show spanning-tree interface gigabitEthernet 0/2 PortAdminPortFast : Disabled PortOperPortFast : Disabled PortAdminAutoEdge : Enabled PortOperAutoEdge : DisabledPortAdminLinkType : auto PortOperLinkType : point-to-point PortBPDUGuard : DisabledPortBPDUFilter : Disabled###### MST 0 vlans mapped :1-9, 11-19, 21-4094 PortState : discardingPortPriority : 128PortDesignatedRoot : 8000.001a.a909.8fe0 PortDesignatedCost : 0 PortDesignatedBridge :8000.00d0.f836.ed70 PortDesignatedPort : 8002 PortForwardTransitions : 1 PortAdminPathCost : 20000 PortOperPathCost : 20000PortRole : alternatePort###### MST 1 vlans mapped :10PortState : forwardingPortPriority : 128PortDesignatedRoot : 0001.00d0.f823.ef82 PortDesignatedCost : 0 PortDesignatedBridge :0001.00d0.f836.ed70 PortDesignatedPort : 8002 PortForwardTransitions : 2 PortAdminPathCost : 20000 PortOperPathCost : 20000PortRole : rootPort###### MST 2 vlans mapped :20PortState : forwardingPortPriority : 128PortDesignatedRoot : 0002.001a.a909.8fe0 PortDesignatedCost : 0 PortDesignatedBridge :0002.00d0.f8d7.ae12 PortDesignatedPort : 8002 PortForwardTransitions : 2 PortAdminPathCost : 20000 PortOperPathCost : 20000PortRole : designatedPorts4#FAQ:1.1 RSTP和MSTP配合为什么有问题1.1.1 原因分析由于RSTP/MSTP的指定端口快速迁移机制，即接收到下游的agreement报文才能进行快速迁移。
