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---
name: Layer 2 Forwarding
maintainer: John Lo <loj@cisco.com>
features:
- Layer 2 (L2) Cross-connect (xconnect) of two interfaces
- Layer 2 (L2) Bridging of multiple interfaces in a bridge domain (BD):
- Forwarding via destination MAC address of packet
- MAC learning enable/disable on BD or per interface
- MAC aging with specified aging interval enable/disable
- MAC flush of learned MACs on interface down, BD deletion, or by user
- User added static MACs not subject to aging nor overwritten by MAC learn
- User added MACs not subject to aging but can be overwritten by MAC learn
- Unicast forwarding enable/disable
- Unknown unicast flooding enable/disable
- Multicast/broadcast flooding enable/disable
- ARP-termination to avoid flooding of ARP requests
- Enable/disable unicast of ARP requests instead of flooding
- BVI (Bridge Virtual Interface) for IP forwarding from or to BD
- Set interface in BD to send unknown unicast packets instead of flooding
- Support of split horizon group (SHG) on BD interfaces
- VLAN tag rewrite on L2 bridging or xconnect interfaces
description: "Layer 2 Bridging and Cross-Connect Support"
state: production
properties: [API, CLI, MULTITHREAD]
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