Cisco ASR1000-RP2 Software Guide - Page 315
Configuring Bridge Domain Interfaces, Restrictions for the Bridge Domain Interface
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11 C H A P T E R Configuring Bridge Domain Interfaces The Cisco ASR 1000 Series Routers support the bridge domain interface feature for terminating Layer 2 Ethernet segments into Layer 3 IP. This chapter covers the following topics: • Restrictions for the Bridge Domain Interface, page 11-1 • Information About a Bridge Domain Interface, page 11-1 • Creating or Deleting a Bridge Domain Interface, page 11-4 • Bridge Domain Interface Scalability, page 11-5 • Configuring a Bridge Domain Interface, page 11-5 Restrictions for the Bridge Domain Interface Restrictions for a bridge domain interface include: • Only 4096 bridge domain interfaces are supported per system. • When using a bridge domain interface in a bridge domain, configure the rewrite command on all the incoming service instances to remove the VLAN tags. Information About a Bridge Domain Interface Bridge domain interface is a logical interface that allows bidirectional flow of traffic between a Layer 2 bridged network and a Layer 3 routed network traffic. Bridge domain interfaces are identified by the same index as the bridge domain. Each bridge domain represents a Layer 2 broadcast domain. Only one bridge domain interface can be associated with a bridge domain. Bridge domain interface supports the following features: • IP termination • Layer 3 VPN termination • Address Resolution Protocol (ARP), G-ARP, and P-ARP handling • MAC address assignment OL-16506-10 Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide 11-1