3com WXR100 3CRWXR10095A User Manual

Page of 750
display spantree backbonefast
491
See Also
„
display spantree 
backbonefast
Indicates whether the STP backbone fast convergence feature is enabled 
or disabled.
Syntax — 
display spantree backbonefast
Defaults — None.
Access — All.
History —Introduced in MSS Version 3.0.
Port-state
STP state of the port:
„
Blocking — The port is not forwarding Layer 2 
traffic but is listening to and forwarding STP 
control traffic.
„
Disabled — The port is not forwarding any traffic, 
including STP control traffic. The port might be 
administratively disabled or the link might be 
disconnected.
„
Forwarding — The port is forwarding Layer 2 
traffic.
„
Learning — The port is learning the locations of 
other WX switches in the spanning tree before 
changing state to forwarding.
„
Listening — The port is comparing its own STP 
information with information in STP control 
packets received by the port to compute the 
spanning tree and change state to blocking or 
forwarding.
„
STP Off—STP is disabled on the port.
Cost
STP cost of the port.
Prio
STP priority of the port.
Portfast
State of the uplink fast convergence feature:
„
Enabled
„
Disabled
Table 75   Output for display spantree (continued)
Field
Description