Brocade FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide User Manual
Page 305
CLI display of 802.1W summary (Continued)
TABLE 49
Field
Description
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
on page 271 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
on page 276 and
Edge port and non-edge port states
277.
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.
To display detailed information about 802-1W, enter the 802-1w command.
device#show 802-1w detail
======================================================================
VLAN 1 - MULTIPLE SPANNING TREE (MSTP - IEEE 802.1W) ACTIVE
======================================================================
BridgeId 800000e080541700, forceVersion 2, txHoldCount 3
Port 1 - Role: ROOT - State: FORWARDING
PathCost 200000, Priority 128, AdminOperEdge F, AdminPt2PtMac F
DesignatedPriority - Root: 0x800000e0804c9c00, Bridge: 0x800000e080541700
ActiveTimers - rrWhile 4 rcvdInfoWhile 4
MachineStates - PIM: CURRENT, PRT: ROOT_PORT, PST: FORWARDING
TCM: ACTIVE, PPM: SENDING_STP, PTX: TRANSMIT_IDLE
Received - RST BPDUs 0, Config BPDUs 1017, TCN BPDUs 0
Port 2 - Role: DESIGNATED - State: FORWARDING
PathCost 200000, Priority 128, AdminOperEdge F, AdminPt2PtMac F
DesignatedPriority - Root: 0x800000e0804c9c00, Bridge: 0x800000e080541700
ActiveTimers - helloWhen 0
Spanning Tree Protocol
FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide
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