Dell PowerConnect B-RX Configuration Manual page 475

This field...
P2P Mac
Edge port
Role
State
Designated Cost
Designated Bridge
State
BigIron RX Series Configuration Guide
53-1002253-01
Displaying RSTP information
Displays...
Indicates if the point-to-point-mac parameter is configured to be a
point-to-point link:
•
T – The link is configured as a point-to-point link.
•
F – The link is not configured as a point-to-point link. This is the
default.
Indicates if the port is configured as an operational Edge port:
•
T – The port is configured as an Edge port.
•
F – The port is not configured as an Edge port. This is the default.
The current role of the port:
•
Root
•
Designated
•
Alternate
•
Backup
•
Disabled
Refer to "Bridges and bridge port roles"
the roles.
The port's current RSTP state. A port can have one of the following
states:
•
Forwarding
•
Discarding
•
Learning
•
Disabled
Refer to "Bridge port states" on page 361 and
port states" on page 362.
The best root path cost that this port received, including the best root
path cost that it can transmit.
The ID of the bridge that sent the best RST BPDU that was received on
this port.
The port's STP state. The state can be one of the following:
•
BLOCKING – STP has blocked Layer 2 traffic on this port to prevent
a loop. The device or VLAN can reach the root bridge using another
port, whose state is FORWARDING. When a port is in this state, the
port does not transmit or receive user frames, but the port does
continue to receive STP BPDUs.
•
DISABLED – The port is not participating in STP. This can occur
when the port is disconnected or STP is disabled on the port.
•
FORWARDING – STP is allowing the port to send and receive
frames.
•
LISTENING – STP is responding to a topology change and this port
is listening for a BPDU from neighboring bridges in order to
determine the new topology. No user frames are transmitted or
received during this state.
•
LEARNING – The port has passed through the LISTENING state and
will change to the BLOCKING or FORWARDING state, depending on
the results of STP's reconvergence. The port does not transmit or
receive user frames during this state. However, the device can
learn the MAC addresses of frames that the port receives during
this state and make corresponding entries in the MAC table.
13
on page 357 for definitions of
"Edge port and non-edge
399