3com S7906E Manuel De Montage

 

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Within an MST region, the packet is forwarded along the corresponding MSTI. 

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Between two MST regions, the packet is forwarded along the CST. 

MSTP is compatible with STP and RSTP. STP and RSTP protocol packets can be recognized by 
devices running MSTP and used for spanning tree calculation. 

In addition to basic MSTP functions, many special functions are provided for ease of management, as 
follows: 

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Root bridge hold 

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Root bridge backup 

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Root guard 

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BPDU guard 

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Loop guard 

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TC-BPDU guard 

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Support for hot swapping of interface cards and active/standby changeover. 

MSTP is documented in: 

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IEEE 802.1d: Spanning Tree Protocol 

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IEEE 802.1w: Rapid Spanning Tree Protocol 

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IEEE 802.1s: Multiple Spanning Tree Protocol 

Before configuring MSTP, you need to know the role of each device in each MSTI: root bridge or leave 
node. In each MSTI, one, and only one device acts as the root bridge, while all others as leaf nodes. 

Complete these tasks to configure MSTP: 

Required 

Configuring the Root Bridge or a Secondary Root Bridge  

Optional 

Configuring the Work Mode of an MSTP Device  

Optional 

Configuring the Priority of a Device  

Optional 

Configuring the Maximum Hops of an MST Region  

Optional 

Optional 

Configuring Timers of MSTP  

Optional 

Optional 

Configuring the Maximum Port Rate  

Optional 

Optional 

Optional 

Optional 

Configuring the 
root bridge 

Optional