| IP address | Unique address identifying a device on the Internet or a local network |
| SSL | Cryptographic protocol |
| VM | Virtual Machine |
| TCP | Transport-layer protocol |
| DBMS | Database Management System |
| Software | Computer programs and related components |
| BGP | Border Gateway Protocol |
| IS-IS | Intermediate System to Intermediate System routing protocol |
| OSPF | Open Shortest Path First dynamic routing protocol |
| LDP | Label Distribution Protocol |
| LLDP | Link Layer Discovery Protocol |
| LLDPDU | LLDP Data Unit |
| TLV | Type-Length-Value data encoding |
| MPLS | Multiprotocol Label Switching |
| LSP | Label Switched Path |
| LSR | Label Switching Router |
| SR | Segment Routing |
| SRGB | Segment Routing Global Block |
| SID | Segment Identifier |
| DR | Designated Router (OSPF) |
| BDR | Backup Designated Router (OSPF) |
| LSA | Link State Advertisement (OSPF) |
| LSP | Link State PDU (IS-IS) |
| CSNP | Complete Sequence Number PDU (IS-IS) |
| PSNP | Partial Sequence Number PDU (IS-IS) |
| AS | Autonomous System |
| EVPN | Ethernet Virtual Private Network |
| PBB-EVPN | Provider Backbone Bridging EVPN, an EVPN service with backbone MAC and I-SID |
| RIP | Routing Information Protocol |
| IGMP | Internet Group Management Protocol for IPv4 multicast groups |
| MLD | Multicast Listener Discovery for IPv6 multicast groups |
| PIM | Protocol Independent Multicast routing protocol |
| SSM | Source-Specific Multicast |
| RP | Rendezvous Point for multicast groups |
| OAM | Operations, Administration and Maintenance for network operations and diagnostics |
| mLDP | Multipoint LDP extension for multicast LSPs |
| MPLS-TP | MPLS Transport Profile |
| PW | Pseudowire, emulation of an L2 service over a packet network |
| VPLS | Virtual Private LAN Service, a multipoint L2VPN service |
| VPWS | Virtual Private Wire Service, a point-to-point L2VPN service |
| FEC129 | Forwarding Equivalence Class 129 for L2VPN pseudowires |
| AII | Attachment Individual Identifier for an L2VPN attachment point |
| RD | Route Distinguisher for VPN/EVPN routes |
| RT | Route Target import/export attribute for VPN/EVPN routes |
| EVI | EVPN Instance identifier |
| BGP-LS | BGP Link-State, distribution of link-state topology through BGP |
| FlowSpec | BGP Flow Specification rules distributed through BGP for traffic filtering |
| MEP | Maintenance End Point for OAM monitoring |
| CC/CV | Continuity Check / Connectivity Verification |
| AIS | Alarm Indication Signal in OAM |
| LCK | Lock Instruct message in OAM |
| DM | Delay Measurement |
| LM | Loss Measurement |
| P2MP | Point-to-Multipoint connection |
| MP2MP | Multipoint-to-Multipoint connection |
| VxLAN | Virtual Extensible LAN |
| VTEP | VxLAN Tunnel Endpoint |
| VNI | VxLAN Network Identifier |
| ECMP | Equal-Cost Multi-Path routing |
| MRT | Multi-threaded Routing Toolkit file format for routing topology data |