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Compatibility Notes
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WAN protocols: PPP and Multilink PPP (MP), PPPoE client and server, PPP / MP over Frame Relay, Frame Relay and Multilink Frame Relay (MFR), Frame Relay Fragmentation, compression and Frame Relay over IP, Frame Relay Traffic Shaping (FRTS), ATM (IPoA, IPoEoA, PPPoA, and PPPoEoA), DCC and dialer watch, HDLC, LAPB, X25, X25 over TCP, X25 to TCP, X25 PAD, X25 hunt groups, X25 CUG, DLSW (v1.0 / 2.0) ISDN, ISDN Network ISDN QSIG, MODEM
Routing: Static, RIP v1 and v2, OSPF, OSPF v3, BGP IV, IS-IS, IGMP, PIM-DM, PIM-SM, MBGP, MSDP
LAN protocols: ARP, VLAN, STP, RSTP, MSTP, transparent bridging, GARP, GVRP, Point Aggregation Technology and LACP protocol, Ethernet OAM protocol, DLDP protocol, cluster management technology, QinQ and BPDU tunnel technologies, RRRP
VPN: GRE, L2TP, DVPN, IPSec
QoS: traffic classification, traffic policing, congestion management, congestion avoidance, traffic shaping, Frame Relay QoS, MPLS QoS, MP QoS / LFI, PPP / MoFR QoS, ATM QoS, subinterface QoS, cRTP / IPHC
Resilience: dual software images, VRRP (Virtual Router Redundancy Protocol), Backup Center, auto detect
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