Network2/Concept/Latency: Difference between revisions
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The latency of a node is the amount of time that it takes the node to respond to [[Network2/Concept/Protocol|messages]]. |
The latency of a [[Network2/Concept/Network|node]] is the amount of time that it takes the node to respond to [[Network2/Concept/Protocol|messages]]. |
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The [[Network2/Concept/Unicast|unicast]] latency of a link is the amount of time that it takes the link to propagate a message from a source [[Network2/Concept/Interface|interface]] to a single destination interface. The [[Network2/Concept/Broadcast|broadcast]] latency of a link is the amount of time that it takes for the link to propagate a message to all interfaces attached to the link. (Likewise for [[Network2/Concept/Multicast|multicast]] latency.) |
The [[Network2/Concept/Unicast|unicast]] latency of a link is the amount of time that it takes the link to propagate a message from a source [[Network2/Concept/Interface|interface]] to a single destination interface. The [[Network2/Concept/Broadcast|broadcast]] latency of a link is the amount of time that it takes for the link to propagate a message to all interfaces attached to the link. (Likewise for [[Network2/Concept/Multicast|multicast]] latency.) |
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Latency is additive, which permits the concept of node and unicast link latency to be aggregated to define the latency of the network path traversed by messages that are being [[Network2/Concept/Router|routed]] through an [[Network2/Concept/Internetwork|internetwork]]. |
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Latest revision as of 05:56, 12 August 2009
The latency of a node is the amount of time that it takes the node to respond to messages.
The unicast latency of a link is the amount of time that it takes the link to propagate a message from a source interface to a single destination interface. The broadcast latency of a link is the amount of time that it takes for the link to propagate a message to all interfaces attached to the link. (Likewise for multicast latency.)
Latency is additive, which permits the concept of node and unicast link latency to be aggregated to define the latency of the network path traversed by messages that are being routed through an internetwork.