Management of route testing in packet communications networks
First Claim
1. A packet communications network comprisinga plurality of network nodes interconnected by transmission links;
- means at each of a plurality of source nodes for determining routes through said network from said each source node to corresponding destination nodes in said network;
means for managing tests of said routes, said means for managing tests comprising;
means at each of said source nodes for storing the results of route tests initiated at that source node;
means at one of said network nodes for remotely and selectively setting a path identifying data value in each of said source nodes, andmeans in each said source node, responsive to said means for setting a value, for initiating a route test from the respective source node to the destination node identified by said identifying data value.
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Abstract
A packet communications network includes a centrally controlled route testing system in which each node includes test results tables containing the results of all path tests originated at that node. A centralized route management facility initiates a path test originating at any node by remotely altering a trigger value in a trigger data object at that node. A general results table contains general test results for an entire path between the local node and a remote node while a detailed test results table contains detailed, hop-by-hop test results for each transmission leg of a multi-leg path. The general results table contains a name trigger field for identifying a point-to-point path to be tested, and a connection trigger field for identifying a link-by-link path to be tested.
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Citations
14 Claims
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1. A packet communications network comprising
a plurality of network nodes interconnected by transmission links; -
means at each of a plurality of source nodes for determining routes through said network from said each source node to corresponding destination nodes in said network; means for managing tests of said routes, said means for managing tests comprising; means at each of said source nodes for storing the results of route tests initiated at that source node; means at one of said network nodes for remotely and selectively setting a path identifying data value in each of said source nodes, and means in each said source node, responsive to said means for setting a value, for initiating a route test from the respective source node to the destination node identified by said identifying data value. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for managing route testing in a packet communications network comprising the steps of
interconnecting a plurality of network nodes by transmission links; -
determining, at each of a plurality of source nodes, routes through said network from said each source node to corresponding destination nodes in said network; managing the testing of said routes, said step of managing comprising the steps of; storing, at each of said source nodes, the results of route tests initiated at that source node in a test result table; setting a path identifying data value in said source node remotely and selectively by one of said network nodes, and initiating, in response to remotely set changes in said data value in said source node, a route test. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification