Dell Brocade DCX, Configuration Manual

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BigIron RX Series Configuration Guide 329
53-1001810-01
IEEE 802.1D Spanning Tree Protocol (STP)
12
TABLE 73 CLI display of detailed STP information for ports
This field... Displays...
VLAN ID The VLAN that contains the listed ports and the number of STP instances
on this VLAN.
The STP type can be one of the following:
•
Brocade proprietary multiple Spanning Tree
•
IEEE 802.1Q Single Spanning Tree (SSTP)
NOTE: If STP is disabled on a VLAN, the command displays the following
message instead: “Spanning-tree of port-vlan <vlan-id> is
disabled.”
STP bridge parameters
Bridge identifier The STP identity of this device.
Root The ID assigned by STP to the root bridge for this spanning tree.
Control ports The ports in the VLAN.
Active global timers The global STP timers that are currently active, and their current values.
The following timers can be listed:
•
Hello – The interval between Hello packets. This timer applies only
to the root bridge.
•
Topology Change (TC) – The amount of time during which the
topology change flag in Hello packets will be marked, indicating a
topology change. This timer applies only to the root bridge.
•
Topology Change Notification (TCN) – The interval between
Topology Change Notification packets sent by a non-root bridge
toward the root bridge. This timer applies only to non-root bridges.