Real time mesh measurement system stream latency and jitter measurements
First Claim
1. A method of measuring system latency and latency jitter regarding packets of information from sources to destinations, comprising:
- 1) as the packets of information pass through a plurality of locations formed by components of a network, said locations between sources and destinations of said packets, generating time-stamps at said locations distinct from said packets of information, each time-stamp identifying the packet of information, including time-stamp information based on a real-time clock set to a universal standard; and
2) analyzing at each of the said plurality of locations the time-stamps generated at the plurality of locations in order to determine component latency and latency jitter as said packets traverse from sources to destinations; and
3) applying said analysis of the time-stamps for a plurality of sources and a plurality of destinations on a real-time basis so as to determine a real-time multiple end-to-end latency and latency jitter representing a real-time mesh view of latency and latency jitter regarding the network.
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Abstract
A method is described for measuring system latency and latency jitter on a near real-time basis regarding packets of information moving from sources to destination. The method for measuring system latency and latency jitter includes time-stamping packets of information as they pass through a plurality of locations between the source and destination of these packets, with the time-stamping being performed by real-time clocks set to a universal standard. The time-stamped packets are analyzed to determine latency and latency jitter. The measurements of system latency and latency jitter can be performed based upon packet types so as to obtain accurate information concerning different types of business bandwidths associated with an observed network.
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Citations
9 Claims
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1. A method of measuring system latency and latency jitter regarding packets of information from sources to destinations, comprising:
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1) as the packets of information pass through a plurality of locations formed by components of a network, said locations between sources and destinations of said packets, generating time-stamps at said locations distinct from said packets of information, each time-stamp identifying the packet of information, including time-stamp information based on a real-time clock set to a universal standard; and 2) analyzing at each of the said plurality of locations the time-stamps generated at the plurality of locations in order to determine component latency and latency jitter as said packets traverse from sources to destinations; and 3) applying said analysis of the time-stamps for a plurality of sources and a plurality of destinations on a real-time basis so as to determine a real-time multiple end-to-end latency and latency jitter representing a real-time mesh view of latency and latency jitter regarding the network. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for measuring system latency regarding packets of information from sources to destinations, comprising:
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1) means for generating time-stamps at a plurality of locations formed by components of a network, said location between sources and destinations of packets as the packets of information pass through said plurality of locations, said time-stamps distinct from said packets of information, wherein each time-stamp identifies the packet of information passing through the location, including time-stamp information based on a real-time clock set to a universal standard; and 2) means for analyzing at each of the plurality of locations the time-stamps generated at the plurality of locations in order to determine component latency and latency jitter as said packets traverse from sources to destinations; and 3) means for applying said means for analyzing of the time-stamps for a plurality of sources and a plurality of destinations on a real-time basis so as to determine a real-time multiple end-to-end latency and latency jitter representing a real-time mesh view of latency and latency jitter regarding the network. - View Dependent Claims (8, 9)
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Specification