Dell EMC SmartFabric OS10 User Guide Release 10.5.0

您可以创建多个 MSTP 实例并映射 VLAN。要充分利用 MSTP，请创建多个 MSTI 并将 VLAN 映射到它们。

1. 在 CONFIGURATION 模式下输入实例编号。

   spanning tree mst configuration

2. 在 MULTIPLE-SPANNING-TREE 模式下输入 MST 实例编号，从 0 到 63。对于 Mt.Echo 平台，MULTIPLE-SPANNING-TREE 模式为 0 到 61。
   注: Mt. Echo 平台总共支持 64 个实例，其中 1 个为 VLT 控制 VLAN，1 个用于 L3 VLAN，1 个用于默认的 STP 实例。运行快速 pvst 风格时，将为每个 VLAN 分配一个实例，直至 VLAN 数达到 61。61 之后的 VLAN 映射到默认实例。

   instance instance-number

3. 输入要在 MULTIPLE-SPANNING-TREE 模式下参与 MST 实例的 VLAN 和 ID，从 1 到 4096。

   instance vlan-id

创建 MST 实例

OS10(config)# spanning-tree mst configuration
OS10(conf-mst)# name Dell
OS10(conf-mst)# revision 100
OS10(conf-mst)# instance 1 vlan 2-10
OS10(conf-mst)# instance 2 vlan 11-20
OS10(conf-mst)# instance 3 vlan 21-30

查看 VLAN 实例映射

OS10# show spanning-tree mst configuration
Region Name: Dell
Revision: 100
MSTI    VID
0       1,31-4093
1       2-10
2       11-20
3       21-30

查看端口转发/丢弃状态

OS10# show spanning-tree msti 0 brief
Spanning tree enabled protocol msti with force-version mst
MSTI 0 VLANs mapped 1,31-4093
Executing IEEE compatible Spanning Tree Protocol
Root ID    Priority 32768, Address 3417.4455.667f
Root Bridge hello time 2, max age 20, forward delay 15, max hops 20
Bridge ID    Priority 32768, Address 90b1.1cf4.a523
Configured hello time 2, max age 20, forward delay 15, max hops 20
CIST regional root ID Priority 32768, Address 90b1.1cf4.a523
CIST external path cost 500
Interface                                              Designated
Name             PortID  Prio  Cost     Sts   Cost  Bridge ID    PortID
-----------------------------------------------------------------------------------
ethernet1/1/1   128.260  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.260
ethernet1/1/2   128.264  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.264
ethernet1/1/3   128.268  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.268
ethernet1/1/4   128.272  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.272
ethernet1/1/5   128.276  128   500       FWD   0    32768   3417.4455.667f  128.146
ethernet1/1/6   128.280  128   500       BLK   0    32768   3417.4455.667f  128.150
ethernet1/1/7   128.284  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.284
ethernet1/1/8   128.288  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.288
ethernet1/1/9   128.292  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.292
ethernet1/1/10  128.296  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.296
ethernet1/1/11  128.300  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.300
ethernet1/1/12  128.304  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.304
ethernet1/1/13  128.308  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.308
ethernet1/1/14  128.312  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.312
ethernet1/1/15  128.316  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.316
ethernet1/1/16  128.320  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.320
ethernet1/1/17  128.324  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.324
ethernet1/1/18  128.328  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.328
ethernet1/1/19  128.332  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.332
ethernet1/1/20  128.336  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.336
ethernet1/1/21  128.340  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.340
ethernet1/1/22  128.344  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.344
ethernet1/1/23  128.348  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.348
ethernet1/1/24  128.352  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.352
ethernet1/1/25  128.356  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.356
ethernet1/1/26  128.360  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.360
ethernet1/1/27  128.364  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.364
ethernet1/1/28  128.368  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.368
ethernet1/1/29  128.372  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.372
ethernet1/1/30  128.376  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.376
ethernet1/1/31  128.380  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.380
ethernet1/1/32  128.384  128   200000000 BLK   0    32768   90b1.1cf4.a523  128.384
Interface
Name             Role   PortID    Prio  Cost      Sts   Cost  Link-type Edge
--------------------------------------------------------------------------
ethernet1/1/1    Disb   128.260   128   200000000 BLK   0     AUTO      No
ethernet1/1/2    Disb   128.264   128   200000000 BLK   0     AUTO      No
ethernet1/1/3    Disb   128.268   128   200000000 BLK   0     AUTO      No
ethernet1/1/4    Disb   128.272   128   200000000 BLK   0     AUTO      No
ethernet1/1/5    Root   128.276   128   500       FWD   0     AUTO      No
ethernet1/1/6    Altr   128.280   128   500       BLK   0     AUTO      No
ethernet1/1/7    Disb   128.284   128   200000000 BLK   0     AUTO      No
ethernet1/1/8    Disb   128.288   128   200000000 BLK   0     AUTO      No
ethernet1/1/9    Disb   128.292   128   200000000 BLK   0     AUTO      No
ethernet1/1/10   Disb   128.296   128   200000000 BLK