Configuring MSTP
Figure 23-4 Alternate port
4. Backup port: The backup port of designated ports. When a designated port is blocked,
the backup port becomes a new designated port and starts forwarding data without delay.
When a loop occurs while two ports of the same MSTP device are interconnected, the device
will block either of the two ports, and the backup port is that port to be blocked.
Figure 23-5 Backup port
5. A master port connects an MST region to the common root. The path from the master
port to the common root is the shortest path between the MST region and the common root. In
the CST, the master port is the root port of the region, which is considered as a node. The
master port is a special boundary port. It is a root port in the IST/CIST while a master port in
the other MSTIs
To Next Page
Loading...
Need help?
General
