ZyXEL GS2200-48 ユーザーガイド

 Chapter 11 Spanning Tree Protocol

GS2200-48 User’s Guide

Internal Cost

This is the path cost from the root port in this MST instance to the 
regional root switch. 

Port ID 

This is the priority and number of the port on the Switch through which 
this Switch must communicate with the root of the MST instance.

Table 31   Advanced Application > Spanning Tree Protocol > Status: MSTP