Configuration Guide User guide

FastIron Configuration Guide 1143
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STP feature configuration
Fwd Dly The number of seconds a non-edge Designated port waits until it can
apply any of the following transitions, if the RST BPDU it receives does
not have an agreed flag:
• Discarding state to learning state
• Learning state to forwarding state
When a non-edge port receives the RST BPDU it goes into forwarding
state within 4 seconds or after two hello timers expire on the port.
Fwd Dly is also the number of seconds that a Root port waits for an RST
BPDU with a proposal flag before it applies the state transitions listed
above.
If the port is operating in 802.1D compatible mode, then forward delay
functionality is the same as in 802.1D (STP).
Hello The hello value derived from the Root port. It is the number of seconds
between two Hello packets.
Port IEEE 802.1W parameters
Port Num The port number shown in a slot#/port# format.
Pri The configured priority of the port. The default is 128 or 0x80.
Port Path Cost The configured path cost on a link connected to this port.
P2P Mac 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.
Edge port 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.
Role The current role of the port:
• Root
• Designated
• Alternate
• Backup
• Disabled
Refer to “Bridges and bridge port roles” on page 1109 for definitions of
the roles.
State The port current 802.1W state. A port can have one of the following
states:
• Forwarding
• Discarding
• Learning
• Disabled
Refer to “Bridge port states” on page 1113 and “Edge port and
non-edge port states” on page 1114.
Designated Cost The best root path cost that this port received, including the best root
path cost that it can transmit.
Designated Bridge The ID of the bridge that sent the best RST BPDU that was received on
this port.
TABLE 199 CLI display of 802.1W summary (Continued)
Field Description