摘要:
A method and system is disclosed for automatically discovering Cisco Discovery Protocol (CDP) nodes a network in real time. The discover process transmits a signal from a network manager to a first CDP node of the network. The signal requests information regarding additional CDP nodes known to the first node. The network manger receives a response is that identifies additional CDP nodes known to the first CDP node. The transmitting and receiving steps are then repeated for each additional CDP node identified. A list containing information of all identified nodes is then stored.
摘要:
Displaying a network topology map may include creating a database representing objects in a network; requesting a topology map of a certain type to represent at least a portion of the network; determining from the database a set of objects corresponding to the type of the requested map; determining parameters associated with the map type; and, while the cardinality of the set is above a threshold: presenting at least one of the parameters on a display, enabling a user to specify a value or group of values for the parameter, and reducing the cardinality of the set by removing objects not matching the value or group of values specified for the parameter.
摘要:
Displaying a network topology map may include creating a database representing objects in a network; requesting a topology map of a certain type to represent at least a portion of the network; determining from the database a set of objects corresponding to the type of the requested map; determining parameters associated with the map type; and, while the cardinality of the set is above a threshold: presenting at least one of the parameters on a display, enabling a user to specify a value or group of values for the parameter, and reducing the cardinality of the set by removing objects not matching the value or group of values specified for the parameter.
摘要:
A network management node monitors network attributes of a network. The network management node is connected to network devices through the network and receives data values associated with measured network attributes from said network devices. The data values are stored in the network management node and a baseline value and rearm baseline value for a network attribute are calculated from a plurality of the received data values measured during a first period of time (e.g., a first time bucket). These data values are compared to the baseline value, and an alarm is generated in response to at least one of these data values exceeding the baseline value. The alarm is reset if at least one subsequently measured data value is below the rearm baseline value. The baseline value and rearm baseline value are recalculated from received data values measured during subsequent time buckets. Data values measured during the subsequent time buckets are compared to corresponding baseline and rearm baseline values.