Cisco ASR 9000 Series Configuration Guidelines

bridge-domain domain1
flooding unknown-unicast disable
end
This example shows how to block unknown-unicast flooding at the bridge port level:
configure
l2vpn
bridge-group group1
bridge-domain domain1
interface GigabitEthernet 0/1/0/1
flooding unknown-unicast disable
end
This example shows how to block unknown-unicast flooding at the access pseudowire level:
configure
l2vpn
bridge-group group1
bridge-domain domain1
neighbor 10.1.1.1 pw-id 1000
flooding unknown-unicast disable
end
Disabling MAC Flush: Examples
You can disable the MAC flush at these levels:
• bridge domain
• bridge port (attachment circuit (AC))
• access pseudowire (PW)
The following example shows how to disable the MAC flush at the bridge domain level:
configure
l2vpn
bridge-group group1
bridge-domain domain1
mac
port-down flush disable
end
The following example shows how to disable the MAC flush at the bridge port level:
configure
l2vpn
bridge-group group1
bridge-domain domain1
interface TenGigE 0/0/0/0
mac
port-down flush disable
end
L2VPN and Ethernet Services Configuration Guide for Cisco ASR 9000 Series Routers, IOS XR Release 6.3.x
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Implementing Multipoint Layer 2 Services
Disabling MAC Flush: Examples

Cisco ASR 9000 Series Specifications

General

Series	ASR 9000
Category	Network Router
Modular Design	Yes
Redundancy	Yes (Hardware and Software)
Operating System	Cisco IOS XR
Interfaces/Ports	10G, 40G, 100G, 400G Ethernet
Expansion Slots	Varies by model
Routing Protocol	BGP, OSPF, IS-IS, EIGRP
Management	CLI, SNMP, NETCONF
Power Supply	Redundant
Port Density	Varies by model
Power Supply Options	AC, DC
Memory	Varies by model
Storage	Varies by model
Dimensions	Varies by model
Weight	Varies by model