Described is a method performed by a downloadable agent, the method comprising: collecting WAN performance information, wherein the downloadable agent is executable on a computing device coupled to a LAN of a broadband subscriber, wherein the LAN is coupled by another device to a WAN; and transmitting the WAN performance information to a machine; wherein the machine is operable to: store and analyze the performance information to generate an analysis result; and report the analysis result to at least one of the broadband subscriber and its service provider. Described is a corresponding system which comprises a database; and a server coupled to the database, the server operable to: receive WAN performance information from a downloadable agent; store the information in the database, analyze the information to generate an analysis result; and report the analysis result to at least one of the broadband subscriber and the broadband subscriber's service provider.

Disclosed are methods for detecting misconfigured VLANs. In some embodiments, traffic on a VLAN across multiple access points is categorized. Traffic on the VLAN at a single access point is then also categorized. The categorization of the VLAN traffic at the single access point can be in response to, for example, communication errors or other conditions. The two categorizations are then compared to determine if the VLAN traffic at the AP is consistent with the VLAN traffic across a network (e.g., an enterprise network). If the VLAN traffic at the AP is generally consistent with that across the network, this may indicate that a downstream network component, such as a switch or router, is misconfigured. Thus, some embodiments programmatically reconfigure the downstream component to forward traffic for the VLAN.

A display device for displaying data in a process automation Ethernet network having a specified physical layer and one or more different higher layer network protocols, the display device being arranged to detect one or more subscriber devices of the network and to display measured values of the one or more subscriber devices.

An enterprise network may be managed by enabling provision of a graphical user interface that shows IP address allocations for the network and that allows a user to configure DHCP scopes, receiving a DHCP scope request based on a user interaction with the graphical user interface, translating the request into a protocol for communicating with a DHCP control server, providing the translated request to the DHCP control server for processing at the DHCP control server, and updating configurations of multiple DHCP servers. The updated configurations may be sent from the DHCP control server to a configuration storage system and the multiple DHCP servers may be enabled to access the updated configurations from the configuration storage system.

Disclosed are methods for detecting misconfigured VLANs. In some embodiments, traffic on a VLAN across multiple access points is categorized. Traffic on the VLAN at a single access point is then also categorized. The categorization of the VLAN traffic at the single access point can be in response to, for example, communication errors or other conditions. The two categorizations are then compared to determine if the VLAN traffic at the AP is consistent with the VLAN traffic across a network (e.g., an enterprise network). If the VLAN traffic at the AP is generally consistent with that across the network, this may indicate that a downstream network component, such as a switch or router, is misconfigured. Thus, some embodiments programmatically reconfigure the downstream component to forward traffic for the VLAN.

Described is a method performed by a downloadable agent, the method comprising: collecting WAN performance information, wherein the downloadable agent is executable on a computing device coupled to a LAN of a broadband subscriber, wherein the LAN is coupled by another device to a WAN; and transmitting the WAN performance information to a machine; wherein the machine is operable to: store and analyze the performance information to generate an analysis result; and report the analysis result to at least one of the broadband subscriber and its service provider. Described is a corresponding system which comprises a database; and a server coupled to the database, the server operable to: receive WAN performance information from a downloadable agent; store the information in the database, analyze the information to generate an analysis result; and report the analysis result to at least one of the broadband subscriber and the broadband subscriber's service provider.

The disclosure relates to technology for sending network management information in a network. A source edge node modifies data packets by encapsulating an operations, administration and maintenance (OAM) header in the data packets traversing a data path, and the OAM header includes a first indicator field. The source edge node also inserts a segment size field into the OAM header of the data packets based on an indication by the first indicator field, the segment size field indicating the data path is partitioned into segments based on a value of the segment size field.

Disclosed are methods for detecting misconfigured VLANs. In some embodiments, traffic on a VLAN across multiple access points is categorized. Traffic on the VLAN at a single access point is then also categorized. The categorization of the VLAN traffic at the single access point can be in response to, for example, communication errors or other conditions. The two categorizations are then compared to determine if the VLAN traffic at the AP is consistent with the VLAN traffic across a network (e.g., an enterprise network). If the VLAN traffic at the AP is generally consistent with that across the network, this may indicate that a downstream network component, such as a switch or router, is misconfigured. Thus, some embodiments programmatically reconfigure the downstream component to forward traffic for the VLAN.

A network management apparatus according to an embodiment includes: a storage device configured to store information indicating a correspondence relationship between information objects related to a logical layer, information objects related to a physical layer in a network configuration, and information objects related to a facility layer which are objects in which the information objects related to the physical layer are housed; an acquisition unit configured to acquire an information object related to an occurrence path of a failure in the logical layer of the network configuration, from the storage device; and a search unit configured to search for, among the information objects related to the facility layer stored in the storage device, an information object related to the facility layer and the physical layer associated with the information object related to the occurrence path of the failure acquired from the acquisition unit, as a candidate for a facility that causes the failure.

Described is a method performed by a downloadable agent, the method comprising: collecting WAN performance information, wherein the downloadable agent is executable on a computing device coupled to a LAN of a broadband subscriber, wherein the LAN is coupled by another device to a WAN; and transmitting the WAN performance information to a machine; wherein the machine is operable to: store and analyze the performance information to generate an analysis result; and report the analysis result to at least one of the broadband subscriber and its service provider. Described is a corresponding system which comprises a database; and a server coupled to the database, the server operable to: receive WAN performance information from a downloadable agent; store the information in the database, analyze the information to generate an analysis result; and report the analysis result to at least one of the broadband subscriber and the broadband subscriber's service provider.