SignaMax SC30010, Справочное руководство CLI

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Chapter 17
| Spanning Tree Commands
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Example
Console(config)#interface ethernet 1/5
Console(config-if)#spanning-tree edge-port
Console(config-if)#spanning-tree bpdu-filter
Console(config-if)#
Related Commands
spanning-tree edge-port (426)
spanning-tree
bpdu-guard
This command shuts down an edge port (i.e., an interface set for fast
forwarding) if it receives a BPDU. Use the
no form without any keywords to
disable this feature, or with a keyword to restore the default settings.
Syntax
spanning-tree bpdu-guard [ auto-recovery [ interval interval ]]
no spanning-tree bpdu-guard [ auto-recovery [ interval ]]
auto-recovery - Automatically re-enables an interface after the
specified interval.
interval - The time to wait before re-enabling an interface.
(Range: 30-86400 seconds)
Default Setting
BPDU Guard: Disabled
Auto-Recovery: Disabled
Auto-Recovery Interval: 300 seconds
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
◆
An edge port should only be connected to end nodes which do not
generate BPDUs. If a BPDU is received on an edge port, this indicates an
invalid network configuration, or that the switch may be under attack by a
hacker. If an interface is shut down by BPDU Guard, it must be manually
re-enabled using the
no spanning-tree spanning-disabled command if the
auto-recovery interval is not specified.
◆ BPDU guard can only be configured on an interface if the edge port
attribute is not disabled (that is, if edge port is set to enabled or auto with
the
spanning-tree edge-port command).
Example
Console(config)#interface ethernet 1/5
Console(config-if)#spanning-tree edge-port
Console(config-if)#spanning-tree bpdu-guard
Console(config-if)#