- VLAN — Virtual Local Area Network
- DTP — Dynamic Trunking Protocol
- VTP — VLAN Trunking Protocol
- STP — Spanning-Tree Protocol
- PVST+ — Per-VLAN Spanning Tree Plus
- RPVST+ — Rapid Per-VLAN Spanning Tree Plus
- BPDU — Bridge Protocol Data Unit
- PAgP — Port Aggregation Protocol
- LACP — Link Aggregation Control Protocol
- DHCP — Dynamic Host Configuration Protocol
- SVI — Switched Virtual Interface
- OSPF — Open Shortest Path First
- LSA — Link State Advertisement
- EIGRP — Enhanced Interior Gateway Routing Protocol
- PPP — Point-to-Point Protocol
- PPPoE — Point-to-Point Protocol over Ethernet
- GRE — Generic Routing Encapsulation
- MPLS — Multiprotocol Label Switching
- VPN — Virtual Private Network
- LAN — Local Area Network
- WAN — Wide Area Network
- DMVPN — Dynamic Multiport Virtual Private Network
- MLPPP — Multilink Point-to-Point Protocol
- HSRP — Hot Standby Routing Protocol
- QoS — Quality of Service
- ACL — Access Control List
- APIC-EM — Application Policy Infrastructure Controller Enterprise Module
- ASIC — Application Specific Integrated Circuit
- SNMP — Simple Network Management Protocol
- ICMP — Internet Control Message Protocol
- AAA — Authentication, Authorization, and Accounting
- TACACS+ — Terminal Access Controller Access Control System Plus
- SPAN — Switched Port Analyzer
- RADIUS — Remote Authentication Dial-In User Service
- IP — Internet Protocol
- IP SLA — Internet Protocol Service Level Agreement
- BGP — Border Gateway Protocol
- eBGP — External Border Gateway Protocol
A Technology Journey