Cabletron Systems SmartStack STS16-20FRM, Инструкция по установке и эксплуатации

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SmartStack STS16-20RM/STS16-20FRM Token Ring Switches, P/N: 9032957-01 Monitoring the Network from the Console Statistics Menu
Dsg PId (Designated Port Identifier)
Port on the designated bridge through which this switch will communicate with the
root of the spanning tree. This information is useful if the switch is the designated
bridge on one or more network segments.
# Chgs
Number of topology changes, that is, the number of times the port has entered the
forwarding state plus the number of times the port has made the transition from
forwarding to blocking. The counter is reset when the switch is reset or the
spanning tree is turned on.
Last Chg
Time since the port last entered the forwarding state or made the transition from
forwarding to blocking.
You cannot change any information on this screen. To change the spanning tree
parameters, refer to the section “Spanning Tree for BRF Screen” on page 96.