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MPLS Features
The following major features are currently supported by MPLS:
- BFD fast failure detection for RSVP-TE adjacencies
- Differentiated services
- Interface support
- ATM AAL5 (RSVP-TE only)
- ATM1483 (point-to-point AAL5SNAP only)
- Ethernet/VLAN
- GRE
- Multilink PPP
- POS (PPP over HDLC)
- PPP
- SLEP (Cisco HDLC)
- Label stacking
- Virtual Private Networks (VR-based and BGP-based)
- Layer 2 Services over MPLS
- LER functionality
- LSR functionality
- Spoof checking
- LDP graceful restart
- ECMP
- Topology-driven LSPs (LDP) including support of LDP over RSVP tunnels
- Traffic engineering (RSVP-TE)
- Constraint-based explicit routing
- Statically configured explicit routing
- Hop-by-hop routing
- Admission control and bandwidth enforcement
- Tunnels used by IGP as next hops in SPF calculation
- Tunnel ingress controlled failure recovery
- Facility back-up-style fast-route
- Traffic support
- Layer 2 frames: ATM, Ethernet, Frame Relay, HDLC, PPP, VLAN
- Layer 3 datagrams: IPv4, IPv6
- Point-to-multipoint LSP support
- Data replication at branch nodes
- E Series routers as egress LSRs
