Monitoring traffic in a packet switched network
First Claim
1. A monitoring system for monitoring a packet switched communications network, the network comprising a plurality of communication links coupled by routers for routing data packets via particular communication links through the network, the system comprising at least one monitoring probe arranged to monitor a first communication link, a network management module for receiving monitoring information from the monitoring probe relating to particular data packets on the communication link, wherein the monitoring information is routed through the packet communications network to the network management module along a path that avoids the communication link being monitored so far as possible.
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Accused Products
Abstract
In an MPLS network one or more monitoring probes are arranged to monitor data traffic on a particular path formed of several links in the network. The monitoring information from the probes is then sent to a Network Management module via links in a path through the network that avoids, so far as possible, any links in the path being monitored, as well as any links in paths that are considered to be important due to having high priority or that would be adversely affected by the additional monitoring information.
95 Citations
18 Claims
- 1. A monitoring system for monitoring a packet switched communications network, the network comprising a plurality of communication links coupled by routers for routing data packets via particular communication links through the network, the system comprising at least one monitoring probe arranged to monitor a first communication link, a network management module for receiving monitoring information from the monitoring probe relating to particular data packets on the communication link, wherein the monitoring information is routed through the packet communications network to the network management module along a path that avoids the communication link being monitored so far as possible.
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13. A method for monitoring a packet switched communications network, the network comprising a plurality of communication links coupled by routers for routing data packets via particular communication links through the network, the method comprising the steps of:
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monitoring a first communication link and generating monitoring information relating to particular data packets on the first communication link, and routing the monitoring information through the packet communications network to a network management module along a path that avoids the communication link being monitored so far as possible. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification