| Carrier Protocols | IPv4 unicast and multicast,IPv6 unicast and multicast,Layer 2 multicast,MPLS Provider Edge Layer 2 and Layer 3 VPNs,MPLS Traffic Engineering (MPLS-TE),MPLS Fast Reroute (FRR),Differentiated Services (Diff-Serv) aware MPLS TE,Layer 2 Tunneling Protocol Version 3 (L2TPv3),Generic Routing Encapsulation (GRE) and IP-in-IP tunneling,Ethernet Bridging and Ethernet Multipoint Bridging (E-MPB),Ethernet switching,Ethernet over MPLS (EoMPLS),Switch port - access and trunk,QinQ termination,Selective QinQ,Flexible QinQ,VLAN translation,Private VLAN,VPLS and H-VPLS,VLAN and Spanning Tree Protocols,Per VLAN Spanning Tree (PVST), Virtual Switch Tagging (VST),Rapid Spanning Tree Protocol (RSTP),Multiple Spanning Tree (MST) Protocol - IEEE 802.1s,VLAN ACL (VACL),VLAN Trunking Protocol (VTP),Resilient Ethernet Protocol (REP),Ethernet Operations, Administration, and Maintenance (E-OAM), Connection,Fault Management (CFM), and Y.1731,802.1ah |
| QoS | Modular QoS CLI (MQC),Policing granularity down to ingress, egress, physical interfaces, and VLAN,Access control lists (ACL),Classification, marking, policing, and queuing,Diff-Serv Code Point (DSCP),Complex re-marking of Ethernet and IP/MPLS headers |
| Congestion avoidance | Weighted Random Early Detection (WRED) based on IP Prec, DSCP, MPLS EXP |
| Queuing and shaping | Enhanced Class-Based Weighted Fair Queuing (CBWFQ),Egress low-latency queuing (LLQ); traffic inside LLQ may be shaped,Two levels of queuing hierarchy,Egress shaping |
| Traffic Classification | Classification based on:,Extended ACL,IP Precedence/IP DSCP,MPLS Experimental Bits (EXP),VLAN,Input VLAN,Policer: Ingress single- and dual-rate, three color |
| ACLs and security | Up to 32,000 access list entries with no forwarding degradation,Hardware counters for ACL hits |
| Layer 2 and Layer 3 VPNs | Layer 2 VPNs,EoMPLS with MAC learning,H-VPLS (MPLS edge or IEEE 802.1ad edge),Flexible QinQ,Layer 3 VPNs,MPLS VPN (RFC 2547-bis),Inter-AS and Carrier-Supporting-Carrier,Multicast VPN,mLDP based Multicast VPN (mVPN),Multicast VPN Extranet,802.1ah |
| Protection and bundling | MPLS Fast Reroute,IEEE 802.3ad and EtherChannel |