ZyXEL Communications XGS-4526 - Manual (Page 146)

Chapter 13 Spanning Tree Protocol
XGS-4526 User’s Guide
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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 35 Advanced Application > Spanning Tree Protocol > Status: MSTP
LABEL DESCRIPTION