Edge-Core ECS4120-28F, Reference Manual, Page: 496 / 938

Chapter 19
| Spanning Tree Commands
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spanning-tree
This command enables the Spanning Tree Algorithm globally for the switch. Use
the
no form to disable it.
Syntax
[ no ] spanning-tree
Default Setting
Spanning tree is enabled.
Command Mode
Global Configuration
Command Usage
The Spanning Tree Algorithm (STA) can be used to detect and disable network
loops, and to provide backup links between switches, bridges or routers. This
allows the switch to interact with other bridging devices (that is, an STA-compliant
switch, bridge or router) in your network to ensure that only one route exists
between any two stations on the network, and provide backup links which
automatically take over when a primary link goes down.
spanning-tree loopback-
detection release-mode Configures loopback release mode for a port IC
spanning-tree loopback-
detection trap Enables BPDU loopback SNMP trap notification for a port IC
spanning-tree mst cost Configures the path cost of an instance in the MST IC
spanning-tree mst port-
priority Configures the priority of an instance in the MST IC
spanning-tree port-bpdu-
flooding Floods BPDUs to other ports when global spanning tree is
disabled IC
spanning-tree port-priority Configures the spanning tree priority of an interface IC
spanning-tree root-guard Prevents a designated port from passing superior BPDUs IC
spanning-tree spanning-
disabled Disables spanning tree for an interface IC
spanning-tree tc-prop-stop Stops propagation of topology change information IC
spanning-tree loopback-
detection release Manually releases a port placed in discarding state by
loopback-detection PE
spanning-tree protocol-
migration Re-checks the appropriate BPDU format PE
show spanning-tree Shows spanning tree configuration for the common
spanning tree (i.e., overall bridge), a selected interface, or
an instance within the multiple spanning tree PE
show spanning-tree mst
configuration Shows the multiple spanning tree configuration PE
Table 97: Spanning Tree Commands
(Continued)
Command Function Mode