Acronym | Definition |
1DM | One-way delay measurement |
6PE | IPv6 provider edge router. An MPLS IPv4 core network that supports IPv6 domains which communicate over an IES service. |
6VPE | IPv6 provider edge router with IP-VPN Services. An MPLS IPv4 core network that supports the communication using IPv6 VPRN services. |
2G | second generation wireless telephone technology |
3DES | triple DES (data encryption standard) |
3G | third generation mobile telephone technology |
4G | fourth generation mobile telephone technology |
5G | fifth generation mobile telephone technology |
5620 SAM | 5620 Service Aware Manager |
7705 SAR | 7705 Service Aggregation Router |
7210 SAS | 7210 Service Access Switch |
7450 ESS | 7450 Ethernet Service Switch |
7705 SAR | 7705 Service Aggregation Router |
7750 SR | 7750 Service Router |
7950 XRS | 7950 eXtensible Routing System |
Acronym | Definition |
AA | Application Assurance |
AA-ISA | Application Aware Integrated Service Adapter |
AAA | AA-Answer |
AAL | ATM Adaptation Layer |
AAL5 | ATM Adaptation Layer 5 |
AAR | AA-Request |
AARP | AA Redundancy Protocol |
ABM | Asynchronous Balanced Mode |
ABR | area border router available bit rate |
AC | alternating current attachment circuit |
ACA | Accounting-Answer |
ACFC | address and control field compression |
ACH | associated channel |
ACK | acknowledgment |
ACL | access control list, also called filter policy |
ACR | Accounting-Request adaptive clock recovery |
ADC | application detection and control |
ADI | ad insertion |
ADI-LZ | ad insertion local and zoned |
ADM | add/drop multiplexer |
ADP | active Diameter proxy Automatic Discovery Protocol |
AFI | address family identifier authority and format identifier |
AFTR | address family transition router |
AGI | address group identifier |
AIGP | accumulated IGP |
AII | attachment individual identifier |
AIS | alarm indication signal |
ALE | access-loop-encapsulation |
ALG | application-level gateway |
ALMP | Auto-Learn-Mac-Protect |
AMI | alternate mark inversion |
AMO | any mode of operation |
ANSI | American National Standards Institute |
ANCP | Access Node Control Protocol |
API | application programming interface |
APN | access point name |
APS | Automatic Protection Switching |
AQP | Application QoS Policies |
ARP | Address Resolution Protocol |
A/S | active/standby |
AS | autonomous system |
ASAP | any service any port |
ASBR | AS boundary routers |
ASID | Acct-Session-Id |
ASM | any-source multicast |
ASN | autonomous system number |
ASO | application service option |
ATM | Asynchronous Transfer Mode |
AVP | attribute value pair |
Acronym | Definition |
B-bit | beginning bit (first packet of a fragment) |
BBF | Broadband Forum |
BC | bandwidth constraint |
BCB | Backbone Core Bridge |
BCG | Burst Control Group |
BCP | Bridging Control Protocol |
B-DA | Backbone destination MAC address |
BEB | Backbone Edge Bridge |
BECN | Backward Explicit Congestion Notification |
Bellcore | Bell Communications Research |
BER | bit error rate |
BERT | bit error rate test |
BFD | bi-directional forwarding detection |
BGP | Border Gateway Protocol |
BITS | Building Integrated Timing Source Building Integrated Timing Supply |
B-MAC | The backbone source and destination MAC address fields defined in the 802.1ah provider MAC encapsulation header |
BMCA | best master clock algorithm |
BMU | Broadcast, multicast, and unknown traffic |
BNG | Broadband Network Gateway |
BOF | boot option file |
BOOTP | Bootstrap Protocol |
BPDU | bridge protocol data unit |
BPG or BPGRP | Bundle Protection Group |
BR | border router |
BRAS | Broadband Remote Access Server |
BRG | Bridged Residential Gateway |
BSA | Broadband Service Aggregator |
BSAN | Broadband Service Access Node |
BSC | Base Station Controller |
BSD | Berkeley Software Distribution |
BSM | Basic Subscriber Management |
BSR | Bootstrap Router Broadband Service Router |
BTS | Base Transceiver Station |
BTSH | BGP TTL Security Hack |
BTV | Broadcast Television |
BUM | Broadcast, Unicast unknown and Multicast |
B-VPLS | Backbone VPLS |
BVID | Backbone VLAN ID |
BVPLS | See B-VPLS |
Acronym | Definition |
CAC | Call Admission Control |
CAS | Channel Associated Signaling |
CBF | Class-Based Forwarding |
CBR | Constant Bit rate |
CBS | Committed Buffer Size Committed Buffer Space Committed Burst Size |
CC | content of communication continuity check control channel |
CCA | Credit Control Answer Cross Connect Adapter |
CCA-I | Credit Control Answer-Initial |
CCA-T | Credit Control Answer-Terminate |
CCA-U | Credit Control Answer-Update |
CCAG | Cross Connect Aggregation Group |
CCID | Cross Connect Identifier |
CCM | Chassis Control Module Continuity Check Messages |
CCR | Credit Control Request |
CCR-I | Credit Control Request-Initiate |
CCR-T | Credit Control Request-Terminate |
CCR-U | Credit Control Request-Update |
CDP | Cisco Discovery Protocol |
CDVT | Cell Delay Variation Tolerance |
CE | circuit emulation customer edge customer equipment |
CEC | Circuit Emulation Concentrator |
CEM | Circuit-emulation |
CER | Capability Exchange Request |
CES | Circuit Emulation Services |
CESoPSN | Circuit emulation services over packet switched network |
CFHP | Class Fair Hierarchical Policing |
CFM | Connectivity Fault Management Control Forwarding Module |
CFP | C form-factor pluggable |
CGA | Cryptographically Generated Address |
CGI | Cell Global Identification |
CGN | Carrier Grade NAT |
CHAP | Challenge Handshake Authentication Protocol |
cHDLC | Cisco high-level data link control protocol |
CHLI | Consecutive High Loss Intervals |
CIDR | Classless Inter-Domain Routing |
CIR | Committed Information Rate |
CLEI | Common Language Equipment Identification |
CLI | Command Line Interface |
CLLI | Common Language Location Identifier |
CLP | Cell Loss Priority |
CMA | Compact Media Adapter |
CMAC | Customer MAC |
CMP | Certificate Management Protocol |
CMTS | Cable Modem Termination System |
CO | Central Office |
CoA | Change of Authorization |
confed-EBGP | confederation external BGP |
CoS | Class of Service |
CP | Connection-Profile |
CPE | Customer Premises Equipment |
CPM | Control Processing Module |
CP/SFM | Control Processor/Switch Fabric Module |
CPU | Control Processing Unit |
CRC | Cyclic Redundancy Check |
CRC-32 | 32-bit cyclic redundancy check |
CRL | Certificate Revocation List |
CRMF | Certificate Request Message Format |
CRON | a time-based scheduling service (from chronos = time) |
CRP | Candidate RP |
CSC | Carrier Supporting Carrier |
CSF | Client Signal Fail |
CSM | Control and Switching Module |
CSN | Complete Sequence Number |
CSNP | Complete Sequence Number PDU |
CSPF | Constraint-based Shortest Path First |
CSR | Cellsite Service Router |
CSU | Channel Service Unit |
CSV | Certificate Status Verification |
C-TAG | Customer VLAN tag |
CV | connection verification customer VLAN (tag) |
CVID | Customer VLAN ID |
CW | control word |
Acronym | Definition |
DACS | Digital Access Cross-connect System |
DAD | Duplicate Address Detection |
DC | direct current |
DCCA | Diameter Credit Control Application |
DCD | Data Carrier Detect |
DCE | Data Circuit-terminating Equipment Data Communications Equipment |
DCP | Distributed CPU Protection |
DCSC | Digital Channel Switch Capable |
DDM | Digital Diagnostics Monitoring |
DDMAP | Downstream Detailed Mapping |
DDoS | distributed DoS |
DE | Discard-Eligible |
DES | Data Encryption Standard |
DEI | Drop Eligibility Indicator |
DF | Delivery Function do not fragment |
DH | Diffie-Hellman |
DHB | Decimal, hexadecimal, or binary |
DHCP | Dynamic Host Configuration Protocol |
DHCPv6 | Dynamic Host Configuration Protocol for IPv6 |
DHT | Distributed Hash Protocol |
DLC | Data Link Control |
DLCI | Data Link Connection Identifier |
DLCMI | Data link connection management interface |
DDM | Delay Measurement Message |
DM | Delay measurement |
DMR | Delay Measurement Reply |
DNS | Domain Name System |
DNSSEC | DNS Security |
DOD | Downstream On Demand |
DORA | Discovery/Offer/Request/Ack |
DoS | Denial of Service |
dot1p | IEEE 802.1p bits, in Ethernet or VLAN ingress packet headers, used to map traffic to up to eight forwarding classes |
dot1q | IEEE 802.1q encapsulation for Ethernet interfaces |
DPD | Dead Peer Detection |
DPI | Digital Program Insertion |
DPL | Delegated Prefix Length |
DPLL | Digital Phase Locked Loop |
DPV | Designated Priority Vector |
DR | Designated router |
DRM | Digital Rights Management |
DSA | Digital signal algorithm |
DSAP | Destination Service Access Point |
DSCP | Differentiated Services Code Point |
DSFS | Data SAP Forwarding State |
DSL | Digital subscriber line |
DSLAM | Digital Subscriber Line Access Multiplexer |
DSM | Distributed Subscriber Management |
DSMAP | Downstream Mapping |
DTC | DHCP Transaction Cache |
DTD | Dynamic Topology Discovery |
DTE | Data Terminal Equipment |
DTP | Digital Trunking Protocol |
DU | Downstream unsolicited |
DUID | DHCP Unique Identifier |
DUS | Do not use for synchronization |
DVB | Digital Video Broadcasting |
DVMRP | Distance Vector Multicast Routing Protocol |
DWDM | Dense Wavelength Division Multiplexing |
Acronym | Definition |
EAP | Extensible Authentication Protocol |
EAPOL | EAP over LAN |
E-bit | ending bit (last packet of a fragment) |
eBGP or EBGP | External Border Gateway Protocol |
E-BSR | elected BSR |
ECID | Emulated Circuit Identifiers |
ECMP | equal cost multipath |
ECT | equal cost tree |
EFM | Ethernet in the first mile |
EGP | Exterior gateway protocol |
EHS | Event Handling System |
EIC | Ethernet Interface Counters |
EIR | Excess information rate |
ELER | Egress Label Edge Router |
eLMI | Ethernet Link Management Interface |
EMG | egress multicast group |
EMR | efficient multicast replication |
EMS | Enhanced Subscriber Management |
EOM | end-of-message |
EOR | End-of-RIB |
EPIPE | Ethernet VLL |
EPL | Ethernet private line |
EPS | Equipment protection switching |
ERO | Explicit Router Object |
ES | Elementary Stream |
ESF | Extended Super Frame |
ESI | Ethernet Segment Identifier |
ESM | Enhanced Subscriber Management |
ESMC | Ethernet Synchronization Messaging Channel |
ESP | Encapsulating security payload |
ETE | end-to-end |
ETH | Ethernet |
ETH-CFM | Ethernet configuration and fault management Ethernet connectivity fault management (IEEE 802.1ag) |
ETSI | European Telecommunications Standards Institute |
EUI-64 | 64-bit Extended Unique Identifier |
EVC | Ethernet Virtual Connections |
EVI | EVPN Instance |
EVPL | Ethernet virtual private link |
EVPN | Ethernet VPN |
EXEC | Execute |
EXP bits | Experimental bits (currently known as TC) |
Acronym | Definition |
FAP | Femto Access Point |
FASTE | FastE SFP type |
FC | Forwarding class |
FCC | Fast Channel Change |
FCS | frame check sequence |
FD | frame delay frequency diversity |
FDB | Forwarding database |
FDL | Facilities data link |
FDR | Frame Delay Range |
FEAC | Far-end alarm and control |
FEC | Forwarding Equivalence Class |
FECN | Forward Explicit Congestion Notification |
FEPL | far-end protection-line |
FF | Fixed filter |
FIB | Forwarding information base |
FID | Forwarding ID |
FIFO | First in, first out |
FIR | Fair Information Rate |
FIX | Financial Information eXchange |
FLR | Frame Loss Ratio |
FOM | Figure of merit |
Fpipe | frame relay VLL |
FPP | Floor Packet Percentage |
FPRI | fine-grained priority |
FQDN | fully qualified domain name |
FQF | fully qualified flows |
FR | Frame relay |
FRG | fragmentation bit |
FRR | Fast Reroute |
FSG | Fate Sharing Group |
FTN | FEC-to-NHLFE |
FTP | file transfer protocol |
FTTH | Fiber to the home |
Acronym | Definition |
G-ACh | Generic Associated Channel |
GAL | Generic ACH Label |
GARP | gratuitous ARP |
GBMAC | Group BMAC |
GFP | Generic framing procedure |
GigE | Gigabit Ethernet |
GIGE | GigE SFP type |
GIGX | GigX SFP |
gLSP | GMPLS LSP |
GMPLS | Generalized Multi-Protocol Label Switching |
GNSS | Global Navigation Satellite System |
GOP | Group of Pictures |
GPON | Gigabit Passive Optical Network |
GPS | Global Positioning System |
GR | graceful restart guaranteed restoration |
GRACE | graceful restart |
GRE | generic routing encapsulation |
GRT | global routing table |
GSMP | General Switch Management Protocol |
GSU | Granted Service Unit |
Acronym | Definition |
HA | high availability |
HD | High Definition |
HDLC | High-level data link control protocol |
HEC | Header error control |
HGW | Home Gateway |
HLI | High loss intervals |
HMAC | hash-based message authentication code hash message authentication code |
H-OFS | Hybrid OpenFlow Switch |
HQOS | Hierarchical quality of service |
HSDPA | High-speed downlink packet access |
HSI | High Speed Internet |
HSMDA | High Scale MDA |
HSPA | High-speed packet access |
HTTP | Hyper-Text Transfer Protocol |
HTTPS | HTTP Secure |
HVPLS | Hierarchical virtual private line service |
Acronym | Definition |
IAD | Integrated Access Device |
IAID | identity association identification |
IANA | Internet Assigned Numbers Authority |
IA-NA | Identity Association for Non-Temporary Addresses |
IA-PD | Identity Association for Prefix Delegation |
IAPP | Inter Access Point Protocol |
IBGP | Interior Border Gateway Protocol |
IBN | Isolated bonding networks |
IB-RCC | In-Band Ring Control Connection |
ICAP | Internet Content Adaptation Protocol |
ICB | Inter-Chassis Backup |
ICL | Inter-Chassis Link |
ICMP | Internet Control Message Protocol |
ICMPv6 | Internet control message protocol for IPv6 |
ICP | IMA control protocol cells |
IDS | Intrusion detection system |
IEEE | Institute of Electrical and Electronics Engineers |
IES | Internet Enhanced Service |
IETF | Internet Engineering Task Force |
IFDV | InterFrame Delay Variation |
IFF | inbound FEC filtering |
IFG | Inter-Frame Gap |
IGD | Internet Gateway Device |
IGH | interface group handler |
IGMP | Internet Group Management Protocol |
IGP | Interior Gateway Protocol |
IID | instance ID |
IIH | IS-IS Hello |
IKE | Internet key exchange |
ILER | Ingress Label Edge Router |
ILM | Incoming label map |
ILMI | Integrated Local Management Interface |
IMA | Inverse multiplexing over ATM |
IMEI | International Mobile Equipment Id |
IMEISV | International Mobile Equipment Id and its Software Version |
IMET | Inclusive Multicast Ethernet Tag |
IMM | Integrated Media Module |
IMPM | Ingress Multicast Path Management |
IMSI | International Mobile Subscriber Identification |
IOM | Input/Output Module |
IP | Internet Protocol |
IP-CAN | IP Connectivity Access Network |
IPCC | IP communication channel IP control channel |
IPCP | Internet protocol control protocol |
IPFIX | IP Flow Information Export |
IPIPE | IP interworking VLL |
IPOE | IP over Ethernet |
IPS | Intrusion prevention system |
IPSec | IP Security |
IPTV | Internet Protocol Television |
IRI | Intercept Related Information |
ISA | Integrated Service Adapter |
ISAKMP | Internet security association and key management protocol |
ISID | I-component Service ID I-service instance identifier |
IS-IS | Intermediate System-to-Intermediate System |
ISO | International Organization for Standardization |
ISSU | In-Service Software Upgrade |
IST | Internal Spanning Tree |
ITU-T | International Telecommunications Union - Telecommunications |
Acronym | Definition |
JID | JabberID |
JOLT | Java OnLine Transactions |
JP | join prune |
Acronym | Definition |
KAT | Keepalive Timer |
KPI | key performance indicators |
Acronym | Definition |
L2TP | Layer 2 Tunneling Protocol |
LAA | Local address assignment |
LAC | L2TP Access Concentrator |
LACP | Link Aggregation Control Protocol |
LAG | Link Aggregation Group |
LAN | Local Area Network |
LB | label base loopback |
LBM | Loopback Message |
LBR | loopback reply loopback response |
LCD | Loss of Cell Delineation |
LCP | Link control protocol |
LDP | Label Distribution Protocol |
LDPoRSVP | LDP over RSVP |
LER | Label edge router |
LFA | Loop-Free Alternate |
LFI | Link Fragmentation and Interleaving |
LIB | Label information base |
LIG | Lawful Intercept Gateway |
LLC | Link Layer Control Logical Link Control |
LLDP | Link layer discovery protocol |
LLDPDU | Link layer discovery protocol data unit |
LLF | Link loss forwarding |
LLID | Loopback location ID |
LM | Loss measurement |
LMI | Local management interface |
LMP | Link Management Protocol |
LNS | L2TP Network Server |
LOC | loss of continuity |
LOP | loss of packets |
LOS | loss of signal |
LoT | loss of Transmission |
LPM | longest prefix match |
LPN | label per next hop |
LPP | label per prefix |
LPT | logical port type |
LPT-S | logical port type subtype |
LPT-V | logical port type value |
LSA | Link State Advertisement |
LSDB | Link-state database |
LSN | Large Scale NAT |
LSP | Link-state PDU (for IS-IS) Label Switched Path |
LSR | Link-state request Label switch router |
LSU | Link-state update |
LT | linktrace |
LTE | line termination equipment long term evolution |
LTM | Linktrace Message |
LTN | LSP ID to NHLFE |
LTR | Linktrace reply Linktrace response |
LUB | limit unused bandwidth |
LUDB | Local User Data Base |
Acronym | Definition |
MA | Maintenance Association |
MA-ID | Maintenance Association Identifier |
MAC | media access control |
MAM | Maximum Allocation Model |
MAN | Metropolitan Area Network |
MAR | Mobile Aggregation Router |
MBB | Make-Before-Break |
MBGP | Border Gateway Protocol with multi-protocol extensions |
MBS | Maximum Buffer Size Maximum Burst Size Media Buffer Space |
MC-APS | Multi-Chassis Automatic Protection Switching |
MC-CTL | Multi-Chassis Control Link |
MC-EP | Multi-Chassis Endpoint |
MC-IPSec | Multi-Chassis IPSec redundancy |
MC-LAG | Multi-Chassis Link Aggregation |
MC-MLPPP | Multi-chassis multilink point-to-point protocol Multi-class multilink point-to-point protocol |
MCAB | Maximum Configurable ATM Bandwidth |
MCAC | Multicast Connection Admission Control |
MCC | Mobile Country Code |
MCLT | Maximum Client Lead Time |
MCM | MDA Carrier Module |
MCR | Mobile Core Router |
MCS | Multi-chassis Synchronization |
MD | Maintenance Domain |
MD5 | message digest version 5 (algorithm) |
MDA | Media Dependent Adapter |
MDI | Media Dependent Interface |
MDL | maintenance data link |
MDT | Multicast Distribution Tree |
MDX | Media Dependent Interface with crossovers |
ME | Maintenance Entity |
MED | Multi-exit discriminator |
MEF | Metro Ethernet Forum |
MEG | Maintenance entity group |
MEP | Maintenance Association Endpoint Maintenance Endpoint |
MEP-ID | Maintenance Association Endpoint Identifier |
MFD | Mean Frame Delay |
MFIB | multicast forwarding information base |
MHD | multi-homed device |
MHF | MIP Half Function |
MHN | multi-homed network |
MHV | mirror header version |
MIB | Management information base |
MIMP | MC-IPSec Mastership Protocol |
MIP | Maintenance Domain Intermediate Point Maintenance Intermediate Points |
MIR | Minimum information rate |
MLD | Multicast Listener Discovery |
MLFR | Multi-Link Frame Relay |
MLPPP | Multilink point-to-point protocol |
MLT | multi-link trunk |
MMRP | Multiple MAC Registration Protocol |
MNC | Mobile Network Code |
MOP | maintenance operational procedure |
MOS | Mean Opinion Score |
MP | merge point multilink protocol |
MPBGP | Multi-Protocol border gateway protocol |
MPLS | Multiprotocol Label Switching |
MPLSCP | Multiprotocol label switching control protocol |
MPTS | multi programme transport stream |
MRAI | Min Route Advertisement Interval |
MRIB | Multicast Routing Information Base |
MRP | Multi-service Route Processor |
MRRU | Maximum received reconstructed unit |
MRU | Maximum receive unit |
MSAN | multi-service access node |
MSAP | Managed Service Access Point |
MSB | Most Significant Bit |
MSCC | Multiple Services Credit Control |
MSDP | Multicast Source Discovery Protocol |
MSDU | MAC Service Data Unit |
MSFP | multicast switch fabric plane |
MS-ISM | Multi-Service Integrated Services Module |
MSK | Master Session Key |
MS-PW | Multi-segment pseudowire |
MSR | Mobile Service Router |
MSS | Multi-Service Site |
MSTI | Multiple Spanning Tree Instances |
MSTP | Multiple Spanning Tree Protocol |
MSTV | Microsoft Television |
MTBF | Mean Time Between Failures |
MTSO | Mobile Telephony Switching Office |
MTTR | Mean Time To Repair |
MTU | Multi-Tenant Unit |
M-VPLS | Management virtual private line service |
MVPN | Multicast VPN |
MVR | Multicast VPLS Registration |
MVRP | Multiple VLAN Registration Protocol |
Acronym | Definition |
NAPT | network address and port translation |
NAS | Network Access Server |
NAT | Network Address Translation |
NBMA | Non-broadcast multiple access (network) |
NBNS | NetBios Name Server |
NET | Network entity title |
NETCONF | Network Configuration Protocol |
NH | Next-Hop |
NHLFE | Next hop label forwarding entry |
NHOP | Next-hop |
NID | Network Interface Demarcation |
NLPID | Network level protocol identifier |
NLRI | Network layer reachability information |
NMS | Network Management System |
NNI | Network-to-network interface |
NPA | network processor array |
NRS-VBR | non-real-time variable bit rate |
NSAP | Network service access point |
NSH | Next Signaling Hop |
NSR | Nonstop Routing |
NSSA | Not-so-stubby area |
NTP | Network Time Protocol |
NVE | Network Virtualization Edge |
Acronym | Definition |
OAM | Operation, Administration and Management |
OAMPDU | OAM protocol data units |
OC3 | Optical carrier level 3 |
OCD | Out of Cell Delineation |
OCS | Online Charging Server |
ODSA | On-Demand Subnet Allocation |
OF | OpenFlow |
OFS | OpenFlow switch |
OID | Object Identifier |
OIF | Outgoing interfaces |
OIL | Outgoing Interface List |
OLT | Optical line termination |
OMCR | Oversubscribed Multi-Chassis Redundancy |
ONT | Optical network terminal |
OOB | Out-of-band |
OOP | Out-of-Profile |
OPDL | Option Data structure List |
OPS | On-Path Support |
ORF | Outbound route filtering |
OS | operating system |
OSF | oversubscription factor |
OSI | Open Systems Interconnection (reference model) |
OSINLCP | OSI Network Layer Control Protocol |
OSPF | open shortest path first |
OSPF-TE | OSPF-traffic engineering (extensions) |
OSS | operations support system |
OTN | Optical Transport Network |
OTU | Optical Transport Unit |
OWAMP | one-way active measurement protocol |
OXC | optical cross connect |
Acronym | Definition |
P2MP | Point-to-Multipoint |
PAA | PDN Address Allocation |
PADI | PPPoE active discovery initiation |
PADO | PPPoE Active Discovery Offer |
PADR | PPPoE active discovery request |
PADS | PPPoE Active Discovery Session-confirmation |
PADT | PPPoE Active Discovery Terminate |
PAE | port authentication entities |
PAGP | Port Aggregation Protocol |
PAP | Password Authentication Protocol |
PASTE | Provider Architecture for Differentiated Services and Traffic Engineering |
PBB | Provider Backbone Bridging |
PBF | policy-based forwarding |
PBO | Packet-Byte-Offset |
PBR | policy-based routing |
PBT | Port Based Timestamping |
PCC | Policy and Charging Control |
PCE | Path Computation Element PCE client |
PCEP | PCE protocol |
PCEF | Policy and Charging Enforcement Function |
PCEP | Path Computation Element Protocol |
PCM | pulse code modulation |
PCP | priority code point |
PCR | peak cell rate proprietary clock recovery |
PCRF | Policy and Rule Charging Function |
PDU | protocol data units |
PDV | Packet Delay Variation |
PE | provider edge router |
PFC | Protocol Field Compression |
PFS | perfect forward secrecy |
PFSG | Pool Fate Sharing Group |
PHB | per-hop behavior |
PHP | penultimate hop popping |
PHY | physical layer |
PIC | prefix independent convergence |
PID | packet identifier protocol ID |
PIM | Protocol Independent Multicast |
PIM-SM | Protocol Independent Multicast (Sparse Mode) |
PIP | Picture-in-Picture |
PIR | peak information rate |
PKI | Public Key Infrastructure |
PLR | Point of Local Repair |
PMSI | P-Multicast Service Interface |
PMSTP | Provider Multi-Instance Spanning Tree Protocol |
PMT | Program Map Table |
POA | Program Off Air |
POI | Purge Originator Identification |
PON | Passive Optical Network |
POP | Points of Presence |
POS | packet over SONET |
PPID | Payload Protocol Identifier |
PPP | point-to-point protocol |
PPPOE | Point-to-Point Protocol over Ethernet |
PPS | Packets per second |
PPTP | Point-to-Point Tunneling Protocol |
PRC | Path Restoration Combined primary reference clock |
PRF | Pseudorandom Function |
PRI | packet priority |
PSB | path state block |
PSC | protection switching coordination |
PSCP | Programmable Subscriber Configuration Policy |
PSD | Protection Switching Duration |
PSI | payload structure identifier |
PSK | pre-shared key |
PSM | peer state machine |
PSN | packet switched network |
PSNP | partial sequence number PDU |
PTA | PMSI Tunnel Attribute |
PTB | Packet Too Big |
PTP | performance transparency protocol precision time protocol |
PVC | Permanent Virtual Circuit |
PVCC | permanent virtual channel connection |
PVST | Per VLAN STP |
PW | pseudowire |
PWE | pseudowire emulation |
PWE3 | pseudowire emulation edge-to-edge |
Acronym | Definition |
Q.922 | ITU-T Q-series Specification 922 |
QL | quality level |
QOS | Quality of Service |
QPPB | QoS Policy Propagation via BGP |
QSFP | Quad Small Form-factor Pluggable |
Acronym | Definition |
RAA | Re-Authentication Answer |
RADIUS | Remote Authentication Dial In User Service |
RAI | Routing Area Identity |
RAM | Reporting and Analysis Manager |
RAN | Radio Access Network |
R-APS | Ring Automatic Protection Switching |
RAR | Re-Authentication Request |
RC | Result Code |
RCO | Routed Central Office |
RD | route distinguisher |
RDI | Remote Defect Indication |
RDM | Russian Doll Model |
RDNSS | Recursive DNS Server |
RED | random early discard |
RESV | reservation |
RET | Retransmission |
RFD | Route Flap Damping |
RG | Routed Gateway |
RGW | Residential Gateway |
RIB | routing information base |
RIP | routing information protocol |
RNC | Radio Network Controller |
RNCV | Ring Node Connectivity Verification |
ROA | Route Origin Authorization |
RP | Rendezvous Point |
RPA | RP address |
RPF | Reverse Path Forwarding |
RPL | Ring Protection Link |
RPS | radio protection switching |
RR | Reporting Reason Route Reflector |
RRO | record route object |
RSA | Rivest, Shamir, and Adleman (authors of the RSA encryption algorithm) |
RSB | Reservation State Block |
RSC | Return Sub-Code |
RSHG | residential split horizon group |
RSTP | rapid spanning tree protocol |
RSU | Requested Service Unit |
RSVP | Resource Reservation Protocol |
RSVP-TE | resource reservation protocol - traffic engineering ReserVation Protocol-Traffic Engineering |
RT | receive/transmit |
RT-VBR | real-time variable bit rate |
RTCP | RTP Control Protocol |
RTM | Routing Table Manager |
RTMP | Real Time Messaging Protocol |
RTMPE | Encrypted Real Time Messaging Protocol |
RTMPT | Tunneled Real Time Messaging Protocol |
RTP | Real-Time Transport Protocol |
RTSP | Real Time Streaming Protocol |
RVPLS | routed virtual private LAN service |
Acronym | Definition |
S-A | Source-Active |
SA | security association |
SAA | service assurance agent |
SAC | State Advertisement Control |
SAFI | subsequent address family identifier |
SAI | Service Area Identity |
SAII | source individual attachment identifier |
SAP | Service Access Point Subscriber Access Point |
SASE | Stand Alone Synchronization Equipment |
SAToP | structure-agnostic TDM over packet |
SBAU | Shared Buffer Average Utilization |
SBR | Source-Based Reroute |
SBU | Shared Buffer Utilization |
SCP | secure copy |
SCR | sustained cell rate |
SCTE | Society of Cable Telecommunications Engineers |
SCUR | Session Charging with Unit Reservation |
SD | signal degrade space diversity |
SDH | Synchronous Digital Hierarchy |
SDN | Software Defined Network |
SDP | service destination point service distribution point |
SE | shared explicit |
SeGW | secure gateway |
SeND | Secure Neighbor Discovery |
SETS | synchronous timing equipment subsystem |
SF | signal fail |
SFM | Switch Fabric Module |
SFP | small form-factor pluggable (transceiver) |
SGH | split horizon group |
SHA | Secure Hash Algorithm |
SHCV | Subscriber Host Connectivity Verification |
SHG | split horizon group |
SID | Segment ID |
SIP | Session Initiation Protocol |
SIR | sustained information rate |
SL | Synthetic Loss |
SLA | Service Level Agreement |
SLAAC | Stateless Address Auto-configuration |
SLARP | serial line address resolution protocol |
SLM | Synthetic Loss Message |
SLR | Synthetic Loss Reply |
SMGR | Service Manager |
SNCP | Sub-network Connection Protection |
SNI | Server Name Indicator |
SNMP | Simple Network Management Protocol |
SNPA | subnetwork point of attachment |
SNR | signal to noise ratio |
SNTP | simple network time protocol |
SOAM | Service OAM |
SONET | Synchronous Optical Network |
SOO | Site of Origin |
SPB | Shortest Path Bridging |
SPBM | Shortest Path Bridging MAC Mode |
SPF | shortest path first |
SPI | security parameter index |
S-PMSI | Selective Provider Multicast Service Interface |
SPT | shortest path tree |
SR | segment routing service router (7750 SR) |
SRGB | Segment Routing Global Block |
SRLG | Shared risk link group |
SRRP | Subscriber Routed Redundancy Protocol |
SSH | secure shell |
SSM | source-specific multicast synchronization status messages synchronization status messaging |
SSRC | Synchronization Source |
SSU | system synchronization unit synchronization supply unit |
STA | Session-Termination-Answer |
S-TAG | service VLAN tag |
STB | Set Top Box |
STM1 | synchronous transport module, level 1 |
STP | spanning tree protocol |
STR | Session-Termination-Requests |
SVC | switched virtual circuit |
SVID | Stacked VLAN ID |
SYN | synchronize |
Acronym | Definition |
TAC | Technical Assistance Center |
TACACS+ | Terminal Access Controller Access-Control System Plus |
TAF | time average factor |
TAII | target attachment individual identifier |
TC | traffic class (formerly known as EXP bits) |
TCA | Traffic Crossing Alert |
TCN | Topology Change Notification |
TCP | transmission control protocol |
TCSB | traffic control state block |
TDF | Traffic Detection Function |
TDM | time division multiplexing |
TDP-ID | time descriptor policy identifier |
TE | Traffic Engineering |
TED | Traffic Engineering Database |
TEID | tunnel endpoint identifier |
TFN | tribe flood network |
TFTP | trivial file transfer protocol |
TLDP | Targeted LDP |
TLS | transport layer security |
TLV | type length value |
TM | traffic management |
TNC | Technically non-conformant |
TNS | Transparent Network Substrate |
ToD | time of day |
TOS | type-of-service |
T-PE | terminating provider edge router |
TPID | tag protocol identifier |
TPMR | two-port MAC relay |
TPSDA | Triple Play Service Delivery Architecture |
TS | Transport Stream |
TSH | TTL Security Hack |
TTI | trail trace identifier |
TTL | time to live |
TTLS | tunneled transport layer security |
TTM | Tunnel Table Manager |
TWAMP | two-way active measurement protocol |
Acronym | Definition |
U-APS | unidirectional automatic protection switching |
UBR | unspecified bit rate |
UDP | user datagram protocol |
ULD | Uni-directional Link Detection |
UMTS | Universal Mobile Telecommunications System (3G) |
UNI | user-to-network interface |
UPnP | Universal Plug and Play |
uRPF | unicast reverse path forwarding |
USM | User-based Security Model |
USU | Used Service Unit |
UTC | Coordinated Universal Time |
Acronym | Definition |
VACM | View-based Access Control Model |
VAS | Value Added Service |
VBO | VE Block offset |
VBS | VE Block size |
VC | virtual circuit |
VCC | virtual channel connection |
VCCV | virtual circuit connectivity verification |
VCI | virtual circuit identifier |
VCP | Virtual Core Port |
VID | VLAN ID |
VLAN | virtual LAN |
VLL | Virtual Leased Line |
vMEPs | Virtual MEPS |
VNI | VXLAN Network Identifier |
VoD | Video on Demand |
VoIP | VoIP voice over IP |
VP | virtual path |
VPC | virtual path connection |
VPI | virtual path identifier |
VPLS | Virtual Private LAN Service |
VPN | virtual private network |
VPRN | Virtual Private Routed Network |
VPWS | Virtual Private Wire Service |
VQM | Video Quality Monitoring |
VRF | virtual routing and forwarding table |
vRGW | Virtual Residential Gateway |
VRID | Virtual Router ID |
VRP | Validated ROA Payload) |
VRRP | Virtual Router Redundancy Protocol |
VSA | Vendor Specific Attribute |
VSC | Virtual Services Controller |
VSD | Virtual Services Directory |
VSI-ID | Virtual Switch Instance identifier |
VSM | Vendor Specific Message |
VSO | vendor-specific option |
VSP | Virtual Services Platform |
VT | validity time virtual trunk |
VTEP | VxLAN Tunnel Endpoint |
VTP | Virtual Trunk Protocol |
VxLAN | Virtual eXtensible Local Area Network |
Acronym | Definition |
WAC | WiiMAX Access Controller |
WAN | Wide Area Network |
WAP | Wireless Application Protocol |
WLAN | wireless local area network |
WLAN-GW | WLAN Gateway |
WPP | Web Authentication Protocol |
WRED | weighted random early detection weighted random early discard |
WRR | weighted-round-robin |
Acronym | Definition |
X.21 | ITU-T X-series Recommendation 21 |
XMPP | eXtensible Messaging and Presence Protocol |