Two-Way Active Measurement Protocol
RFC 5357
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TWAMP is a flexible method for measuring
round-trip IP performance among any two
devices in a network.
It measures core and edge IP performance
through cooperation between the routers
and switches in the Network
TWAMP connects using TCP and uses UDP
packets for testing
Supports IPv4 and IPv6
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TWAMP defines two sets of protocols
 Control Protocol
▪ Enables endpoints to negotiate
 Performance-measurement probes
▪ Defines the packet format that is needed for measuring
round-trip performance.
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Control-Client Initiates a TCP connection with
the Server
 Server indicates its willingness to communicate
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Client responds with the mode of
communication
 Server responds to accept the mode and give its
start time.
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This completes the control connection
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Client request a test session with a unique
TWAMP-Control message.
 Sever responds with its acceptance and supporting
informtion
▪ More than one test session may be requested with additional
messages
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Client initiates all requested testing with a start
sessions message
 Sever acknowledges
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When testing complete client sends a message
to stop all test sessions.
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TWAMP is a non-proprietary method of
testing IP networks.
Unlike ping and traceroute TWAMP works
directly with switches and routers to test
network performance.
No proprietary suite like TCP/IP is required to
perform testing on network devices.