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Dell EMC SmartFabric OS10 User Guide Release 10.5.0

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MSTP 配置

在 VLT 节点上启用多个生成树协议 (MSTP) 时，在同一个 MST 区域中配置两个 VLT 对等节点，以避免网络循环。确保两个 VLT 对等节点上的 VLAN 到实例映射、地区名称和版本 ID 相同。

注: OS10 最多支持 64 个 MST 实例。

要配置 MSTP over VLT，请在两个 VLT 对等节点上执行以下步骤：

  1. 启用 MSTP。
    CONFIGURATION 模式
    spanning-tree mode mst
  2. 进入 MST 配置模式。
    CONFIGURATION 模式
    spanning tree mst configuration
  3. 创建 MST 实例并根据需要添加多个 VLAN。
    MULTIPLE-SPANNING-TREE
    instance instance-number vlan from-vlan-id — to-vlan-id
  4. 配置 MST 版本号，从 0 到 65535。
    MULTIPLE-SPANNING-TREE
    revision revision-number
  5. 配置 MST 区域名称。
    MULTIPLE-SPANNING-TREE
    name name-string
以下示例显示了两个 VLT 节点均配置了同一个 MST VLAN 到实例映射。
VLT Peer 1 confoguration
OS10(config)# spanning-tree mode mst
OS10(config)# spanning-tree mst configuration
OS10(conf-mst)# instance 1 vlan 2-10
OS10(conf-mst)# revision 10
OS10(conf-mst)# name ExampleMSTregion

VLT Peer 2 confoguration
OS10(config)# spanning-tree mode mst
OS10(config)# spanning-tree mst configuration
OS10(conf-mst)# instance 1 vlan 2-10
OS10(conf-mst)# revision 10
OS10(conf-mst)# name ExampleMSTregion

以下示例显示了有关 VLTi 的 MSTP 信息：

注: 要查看所有其他端口，请使用 show spanning-tree active 或 show spanning-tree msti 命令。
OS10# show spanning-tree virtual-interface 
VFP(VirtualFabricPort) of MSTI 0 is Designated Forwarding
Edge port: No (default)
Link type: point-to-point (auto)
Boundary: Yes, Bpdu-filter: Disable, Bpdu-Guard: Disable, Shutdown-on-Bpdu-Guard-violation: No
Root-Guard: Disable, Loop-Guard: Disable
Bpdus (MRecords) Sent: 387, Received: 16
Interface                                                                       Designated
Name                PortID    Prio      Cost      Sts         Cost      Bridge ID                PortID  
---------------------------------------------------------------------------------------------------VFP(VirtualFabricPort) 0.1     0         1         FWD         0         32768    3417.ebf2.a8c4  0.1   

VLT-LAG -1(vlt-portid-1) of MSTI 0 is in Designated Forwarding
Edge port: No (default)
Link type: point-to-point (auto)
Boundary: No, Bpdu-filter: Disable, Bpdu-Guard: Disable, 
Shutdown-on-Bpdu-Guard-violation: No
Root-Guard: Disable, Loop-Guard: Disable
Bpdus (MRecords) Sent: 1234, Received: 123

Virtual
Interface                                                          Designated
Name              PortID    Prio      Cost      Sts         Cost    Bridge ID                PortID  
---------------------------------------------------------------------------------------------------

VLT-LAG -1(vlt-portid1)         128.2001  128       2000000   FWD         0       32768    90b1.1cf4.a523  128.2001
注: 要查看所有其他端口，请使用 show spanning-tree active 命令。

以下示例详细显示了有关 VLTi 的 MSTP 信息：

OS10# show spanning-tree virtual-interface detail
Port 1 (VFP(VirtualFabricPort)) of MSTI 0 is designated Forwarding
Port path cost 0, Port priority 128, Port Identifier 128.1
Designated root priority: 32768, address: 34:17:44:55:66:7f
Designated bridge priority: 32768, address: 90:b1:1c:f4:a5:23
Designated port ID: 128.1, designated path cost: 0
Number of transitions to forwarding state: 1
Edge port: No (default)
Link Type: Point-to-Point
BPDU Sent: 2714, Received: 1234

Port 2001 (VLT-LAG -1(vlt-portid-1)) of MSTI 0 is designated Forwarding
Port path cost 200000, Port priority 128, Port Identifier 128.2001
Designated root priority: 32768, address: 34:17:44:55:66:7f
Designated bridge priority: 32768, address: 90:b1:1c:f4:a5:23
Designated port ID: 128.2001, designated path cost: 0
Number of transitions to forwarding state: 1
Edge port: No (default)
Link Type: Point-to-Point
BPDU Sent: 2714, Received: 1234

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