Cisco 300 Series User Manual

Spanning-Tree Commands
899 OL-32830-01 Command Line Interface Reference Guide
46
Syntax
spanning-tree bpdu
{filtering | flooding}
no spanning-tree bpdu
Parameters
• filtering—Specifies that BPDU packets are filtered when the spanning tree
is disabled on an interface.
• flooding—Specifies that untagged BPDU packets are flooded
unconditionally (without applying VLAN rules) to all ports with the spanning
tree disabled and BPDU handling mode of flooding. Tagged BPDU packets
are filtered.
Default Configuration
The default setting is flooding.
Command Mode
Global Configuration mode
User Guidelines
The filtering and flooding modes are relevant when the spanning tree is disabled
globally or on a single interface.
Example
The following example defines the BPDU packet handling mode as flooding when
the spanning tree is disabled on an interface
.
switchxxxxxx(config)# spanning-tree bpdu flooding
46.14 spanning-tree bpdu (Interface)
Use the spanning-tree bpdu Interface (Ethernet, Port Channel) Configuration mode
command to define BPDU handling when the spanning tree is disabled on a single
interface. Use the no form of this command to restore the default configuration.

Cisco 300 Series Specifications

General

Model	Cisco 300 Series
Category	Switch
Dimensions	Varies by model
Weight	Varies by model
Power over Ethernet (PoE)	Available on select models
Management	Web-based GUI, SNMP, CLI
VLANs	Up to 256
Security Features	ACLs, 802.1X, Port Security
Humidity	10% to 90% non-condensing
Ports	8, 16, 24, 48