On an RSTP network, port priorities may be compared during root port or designated port election. Which of the following values is the default priority of a port on a Huawei switch?
Comprehensive and Detailed Step-by-Step Explanation:
1. Port Priority in RSTP:
RSTP (Rapid Spanning Tree Protocol) elects root and designated ports based on port priority and port ID.
Port priority is a configurable value that helps determine which port becomes the root or designated port when multiple ports are eligible.
The port ID consists of the port priority and port number. When priorities are equal, the port number is used as a tiebreaker.
2. Default Port Priority on Huawei Switches:
On Huawei switches, the default port priority is 128 .
This value can be adjusted in increments of 16 using the command stp port priority.
3. Analysis of Options:
Option A: 1
Incorrect . This is not the default port priority value.
Option B: 128
Correct . This is the default port priority value on Huawei switches.
Option C: 4096
Incorrect . This is not a valid default port priority value.
Option D: 32768
Incorrect . This is the default bridge priority, not the port priority.
4. Summary:
The default port priority on Huawei switches is 128 .
[:, Huawei HCIA-Datacom Study Guide, Chapter "RSTP Port Role Election.", IEEE 802.1D-2004: Rapid Spanning Tree Protocol (RSTP)., ]
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