ZyXEL P-794H User Guide - Page 134

STP Port States, Table 60

Page 134 highlights

Chapter 7 WAN Setup 7.8.2.3 STP Port States STP assigns five port states (see next table) to eliminate packet looping. A bridge port is not allowed to go directly from blocking state to forwarding state so as to eliminate transient loops. Table 60 STP Port States PORT STATES DESCRIPTIONS Disabled STP is disabled (default). Blocking Only configuration and management BPDUs are received and processed. Listening All BPDUs are received and processed. Learning All BPDUs are received and processed. Information frames are submitted to the learning process but not forwarded. Forwarding All BPDUs are received and processed. All information frames are received and forwarded. 134 P-794H User's Guide

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Chapter 7 WAN Setup
P-794H User’s Guide
134
7.8.2.3
STP Port States
STP assigns five port states (see next table) to eliminate packet looping. A bridge
port is not allowed to go directly from blocking state to forwarding state so as to
eliminate transient loops.
Table 60
STP Port States
PORT
STATES
DESCRIPTIONS
Disabled
STP is disabled (default).
Blocking
Only configuration and management BPDUs are received and processed.
Listening
All BPDUs are received and processed.
Learning
All BPDUs are received and processed. Information frames are
submitted to the learning process but not forwarded.
Forwarding
All BPDUs are received and processed. All information frames are
received and forwarded.