Layer 2 VPLS, IRB, and mesh group feature parity

Support for Layer 2 feature parity with JUNOS Release 9.1 on MX Series routers that include Trio Modular Port Concentrators (MPCs) and Modular Interface Cards (MICs). Layer 2 feature parity includes:

• Layer 2 bridging
• VPLS forwarding
• MAC address learning, aging, and MAC address limit
• Mesh group support
• Implicit VLAN mapping
• Integrated routing and bridging (IRB)
• Multicast over IRB
• MAC statistics