System and method for monitoring label switched path in network
AssigneeCloud Scope Technologies, Inc.
InventorsKenichi Nagami, Ikuo Nakagawa
Life of this patent
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Abstract
Systems and methods for providing a network monitoring tool for appropriately grasping a setup state of a label switched path (LSP) in a network. A monitoring apparatus comprises a communication unit that communicates with a router among a plurality of routers in the network, and a collection unit that collects LSP path information via the communication unit. The LSP path information includes information maintained by the router. The monitoring apparatus also comprises a storing unit that stores state information based on the collected LSP path information, and a display unit that reads the state information for a selected LSP stored by the storing unit and graphically displays a path of the selected LSP, in accordance with a user's instruction.
Claims21
An apparatus for monitoring a network in which a label switched path (LSP) is set up, the network including a plurality of routers, comprising:
- a communication unit that communicates with a router among the plurality of routers;
- a collection unit that collects LSP path information via the communication unit independently of packet forwarding that uses the LSP, the LSP path information being maintained by the router and including information to be referred to for forwarding a packet by the router and other information exchanged via a message for setting up or maintaining the LSP by the router;
- a storing unit that stores state information based on the LSP path information collected by the collection unit, the state information including information for identifying an LSP and information on a current path of the LSP;
- and
- a display unit that reads the state information for a selected LSP stored by the storing unit and graphically displays how a path of the selected LSP is formed on a corresponding network topology, in accordance with a user's instruction.
A method of monitoring a network in which a label switched path (LSP) can be set up, the network including a plurality of routers, comprising:
- collecting LSP path information through communicating with a router among the plurality of routers independently of packet forwarding that uses the LSP, the LSP path information being maintained by the router and including information to be referred to for forwarding a packet by the router and other information exchanged via a message for setting up or maintaining the LSP by the router;
- storing state information in a memory based on the LSP path information collected, the state information including information for identifying an LSP and information on a current path of the LSP;
- and
- reading the state information for a selected LSP from the memory to graphically display how a path of the selected LSP is formed on a corresponding network topology, in accordance with a user's instruction.
A system for monitoring a network in which a label switched path (LSP) is set up, comprising:
- a plurality of routers included in the network;
- and
- a monitoring apparatus configured to communicate with the plurality of routers,
- wherein
- each of the plurality of routers includes:
- a storing unit that stores LSP path information including information to be referred to for forwarding a packet using an LSP and other information exchanged via a message for setting up or maintaining the LSP;
- and
- a transmitting unit that transmits information stored by the storing unit to the monitoring apparatus,
- and
- the monitoring apparatus includes:
- a receiving unit that receives information transmitted by said each of the plurality of routers independently of packet forwarding that uses the LSP;
- a storing unit that stores state information based on the information received by the receiving unit, the state information including information for identifying an LSP and information on a current path of the LSP;
- and
- a display unit that reads the state information for a selected LSP stored by the storing unit and graphically displays how a path of the selected LSP is formed on a corresponding network topology, in accordance with a user's instruction.
A computer usable medium having computer readable program codes embodied therein for a computer functioning as a monitoring apparatus connected with a network in which a label switched path (LSP) is set up, the network including a plurality of routers, the computer readable program codes comprising:
- a communication code module causing the computer to communicate with a router among the plurality of routers;
- a collection code module causing the computer to collect LSP path information via the communication code module independently of packet forwarding that uses the LSP, the LSP path information being maintained by the router and including information to be referred to for forwarding a packet by the router and other information exchanged via a message for setting up or maintaining the LSP;
- a storing code module causing the computer to store state information based on the LSP path information collected by the collection code module, the state information including information for identifying an LSP and information on a current path of the LSP;
- and
- a display code module causing the computer to read the state information for a selected LSP stored by the storing code module and to graphically display how a path of the selected LSP is formed on a corresponding network topology, in accordance with a user's instruction.
Dependencies are inferred from the claim text.