ZyXEL Communications MES-3528 User Manual page 142

Chapter 13 Spanning Tree Protocol
Table 32 Advanced Application > Spanning Tree Protocol > Status: MSTP
(continued)
LABEL
Internal Cost
Port ID
142
DESCRIPTION
This is the path cost from the root port in this MST instance to the
regional root switch.
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.
MES-3528 User's Guide