Spanning Tree Protocol And Rapid Spanning Tree Protocol; Switch Database; Traffic Prioritization - 3Com SuperStack 3C17300 Implementation Manual

18 C 1: S
HAPTER WITCH
Spanning Tree
Protocol and Rapid
Spanning Tree
Protocol

Switch Database

Traffic Prioritization

F O
EATURES VERVIEW
endstations in each multicast group to which multicast traffic should be
forwarded.
For more information about multicast filtering, see
Multicast Filtering".
Spanning Tree Protocol (STP) and Rapid Spanning Tree Protocol (RSTP)
are bridge-based systems that makes your network more resilient to
link failure and also provides protection from network loops — one of
the major causes of broadcast storms.
STP allows you to implement alternative paths for network traffic in the
event of path failure and uses a loop-detection process to:
Discover the efficiency of each path.
Enable the most efficient path.
Disable the less efficient paths.
Enable one of the less efficient paths if the most efficient path fails.
RSTP is an enhanced version of the STP feature and is enabled by default.
RSTP can restore a network connection quicker than the STP feature.
RSTP can detect if it is connected to a legacy device that only supports
IEEE 802.1D STP and will automatically downgrade to STP on that
particular port.
STP conforms to the IEEE 802.1D-1998 standard, and RSTP conforms to
the IEEE 802.1w standard.
For more information about STP and RSTP, see
Resilience Features".
The Switch Database is an integral part of the Switch and is used by the
Switch to determine if a packet should be forwarded, and which port
should transmit the packet if it is to be forwarded.
For more information about the Switch Database, see
the Switch Database".
Traffic prioritization allows your network traffic to be prioritized to ensure
that high priority data, such as time-sensitive and system-critical data is
transferred smoothly and with minimal delay over a network.
Chapter 3 "Using
Chapter 4 "Using
Chapter 5 "Using