136
C
HAPTER
7: B
RIDGE
P
ORT
P
ARAMETERS
SRHopLimit
(Multilayer Switching
Modules only)
(Not available at this release)
state
Current STP operating state of the port:
■
Blocking
— The bridge continues to run STP on the
port, but the bridge does not receive packets from the
port, learn locations of station addresses from it, or
forward packets onto it.
■
Listening
— The bridge continues to run STP and
to transmit configuration messages on the port, but it
discards packets that are received on the port and does
not transmit packets that are forwarded to the port.
■
Learning
— Similar to listening, but the bridge
receives packets on the port to learn the location of
some of the stations that are located on the port.
■
Forwarding
— The bridge receives packets on the
port and forwards or does not forward them,
depending on address comparisons with the bridge’s
source address list. Provided that the link state is up,
this
state
field indicates
forwarding
even if STP is
disabled for the bridge.
■
Disabled
— Management has disabled the port or
the link state is
down
.
stp
Configurable status of STP on a port. Provided that
bride-wide STP is enabled, the port STP configuration
states function as follows:
■
enabled
— STP sets the operating state of the port
(blocking, listening, etc.) according to network
topology characteristics. This is the default
configuration for all ports.
■
disabled
— STP is disabled and the port is disabled.
The port does not participate in STP decisions, frame
reception, or frame transmission.
■
removed
— STP is disabled on the port but the port
can still receive or transmit frames if its link state is up.
If bridge-wide STP is disabled, this port STP setting is
meaningless. To configure STP on a port, see “bridge port
stpState” in this chapter.
txAllFilters
(Multilayer Switching
Modules only)
Number of frames that the bridge port discarded because
of a user-defined packet filter on its “transmit all” path.
txBlockedDiscs
(Multilayer Switching
Modules only)
Number of frames that this bridge port discarded because
the transmitting bridge port was not in the forwarding
state.
Field
Description
Summary of Contents for 4007
Page 1: ...http www 3com com Switch 4007 Command Reference Guide Part No 10013693 Published May 2000...
Page 14: ......
Page 22: ...22 ABOUT THIS GUIDE...
Page 34: ...34 CHAPTER 1 ADMINISTRATION OVERVIEW...
Page 78: ...78 CHAPTER 4 SIMPLE NETWORK MANAGEMENT PROTOCOL SNMP...
Page 100: ...100 CHAPTER 5 ETHERNET PORTS...
Page 174: ...174 CHAPTER 9 RESILIENT LINKS...
Page 322: ...322 CHAPTER 13 VIRTUAL ROUTER REDUNDANCY VRRP...
Page 476: ...476 CHAPTER 16 INTERNET PACKET EXCHANGE IPX...
Page 552: ...552 CHAPTER 18 QUALITY OF SERVICE QOS AND RESOURCE RESERVATION PROTOCOL RSVP...
Page 566: ...566 APPENDIX A TECHNICAL SUPPORT...