Specifications

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Cisco IOS Command Reference for Cisco Aironet Access Points and Bridges
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Chapter 2 Cisco IOS Commands for Access Points and Bridges
bridge-group block-unknown-source
bridge-group block-unknown-source
Use the bridge-group block-unknown-source configuration interface command to block traffic from
unknown MAC addresses on a specific interface. Use the no form of the command to disable unknown
source blocking on a specific interface.
For STP to function properly, block-unknown-source must be disabled for interfaces participating in
STP.
bridge-group group block-unknown-source
Syntax Description
Defaults When you enable STP on an interface, block unknown source is disabled by default.
Command Modes Configuration interface
Command History
Examples This example shows how to disable block unknown source for bridge group 2:
bridge(config-if)# no bridge-group 2 block-unknown-source
Related Commands
group Specifies the bridge group to be configured
Release Modification
12.2(11)JA This command was introduced.
Command Description
bridge protocol ieee Enables STP on the bridge
bridge-group path-cost Specifies the path cost for the bridge Ethernet and radio
interfaces
bridge-group port-protected Enables protected port for public secure mode configuration
bridge-group priority Specifies the spanning tree priority for the bridge Ethernet
and radio interfaces
bridge-group spanning-disabled Disables STP on a specific interface
bridge-group
subscriber-loop-control
Enables loop control on virtual circuits associated with a
bridge group
bridge-group unicast-flooding Enables unicast flooding for a specific interface