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TWAMP (Two-Way Active Measurement Protocol) is a network performance measurement protocol that provides two-way or round-trip measurements rather than simply unidirectional capabilities. It is used to measure network performance between two units in a network in order to check Service Level Agreement (SLA) assurance and provide SLA related metrics.
TWAMP is supported as a Session-Sender and as a Session-Reflector. TWAMP metric types are collected by the Telemetry.
Assurance Sensor F100 and F25 TWAMP:
- Is manageable via CLI (Command-Line Interface), SNMP (Simple Network Management Protocol), and NETCONF (Network Configuration Protocol) and is compatible with both IPv4 and IPv6 protocols
- Supports up to 1,000 OE-SVI (Offload Engine Switch Virtual Interface) sessions. An OE-SVI is an abstract object and is used to associate a network interface to an underlying Ethernet Service. It typically contains the following parameters:
- Ethernet interfaces or Port-Channels
- IP address (IPv4 and/or IPv6)
- Netmask and/or Prefix Length
- Default Gateway and/or Next-Hop address
- Route
- A reference to the underlying Layer 2 domain
- Manages up to 256 static routes
- Can handle up to 6,000 TWAMP sender sessions
- Manages up to 6,000 TWAMP reflector sessions
- Supports periodic intervals of 10 ms, 20 ms, 33 ms, 50 ms, 100 ms, and 1000 ms
- Can achieve an aggregate rate of 60,000 packets per second (PPS) when configured with a padding length above the minimum size
Additionally:
- TWAMP Sender can reach an aggregate rate of 600,000 packets per second (PPS) when all sessions use a padding length equal to the minimum size
- TWAMP Telemetry measures intervals of 60 seconds, 300 seconds, 600 seconds, 900 seconds, or 3600 seconds
- OE-SVI can be simultaneously configured with both IPv4 and IPv6 addresses
TWAMP Acronyms
This table lists acronyms related to TWAMP:
Acronym | Expansion |
---|---|
CLI | Command Line Interface |
CNP | Customer Network Port |
CoS | Class of Service |
DEI | Drop Eligibility Indicator |
DSCP | Differentiated Services Code Point |
EMS | Element Management System |
IETF | Internet Engineering Task Force |
IP | Internet Protocol |
IPv4 | Internet Protocol version 4 |
IPv6 | Internet Protocol version 6 |
L3 | Layer 3 (signalling network functions) |
MEF | Metro Ethernet Forum |
MIB | Management Information Base |
MSR | MIB Save & Restore |
ms | millisecond |
NDP | IPv6 Neighbor Discovery Protocol |
NFR | Non-Functional Requirement |
OE | Offload Engine |
OE-SVI | Offload Engine Switch Virtual Interface |
OWAMP | One-Way Active Measurement Protocol |
PCP | Priority Code Point |
PEB | Provider Edge Bridge |
PM | Performance Monitoring |
PNP | Provider Network Port |
PPS | Packets per Second |
SLA | Service Level Agreement |
SVI | Switch Virtual Interface |
TPID | Tag Protocol Identifier |
TTL | Time-to-live |
TWAMP | Two-Way Active Measurement Protocol |
UDP | User Datagram Protocol |
VID | VLAN Identifier |
VLAN | Virtual Local Area Network |
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