US 9,794,114 B2 · Preventing or reducing traffic losses

Abstract

Embodiments of the present invention include systems and methods for preventing or reducing traffic losses of data. If an information handling system, such as a switch or router, in a network attempts to install route information in the data store of the information handling system and has a failure or a potential failure, the information handling system may take one of several options or combinations thereof. In embodiments, the information handling system may not advertise the route information. In embodiments, the information handling system may send a route withdrawal message to one or more peer information handling systems to remove that system from routing determinations involving the route information. Alternatively, the information handling system may advertise the route prefix with a high metric to indicate that the system is a non-preferred forwarder for data intended for a destination associated with the route information.

Claims20

Dependent claims

An information handling system for preventing or reducing traffic loss of data, the information handling system comprising:

a plurality of ports for facilitating the switching or routing of data to and/or from one or more peer information handling systems communicatively coupled to the information handling system;
one or more processors that are communicatively coupled to the plurality of ports;
a data store, communicatively coupled to the one or more processors, for recording routing information;
and
a non-transitory memory comprising one or more sequences of instructions which, when executed by the one or more processors, causes steps to be performed comprising:
receiving route-related information at the information handling system;
responsive to failing to install the route-related information into the data store in the information handling system, sending a fail indicator to a routing application on the information handling system that is configured to exchange routing information between systems;
and
responsive to the routing application receiving the fail indicator, sending a route withdrawal message to one or more peer information handling systems to remove the information handling system from routing determinations involving the route-related information.

6 more elements

An information handling system for preventing or reducing traffic loss of data, the information handling system comprising:

a plurality of ports for facilitating the switching or routing of data to and/or from one or more peer information handling systems communicatively coupled to the information handling system;
one or more processors that are communicatively coupled to the plurality of ports;
a data store, communicatively coupled to the one or more processors, for recording routing information;
and
a non-transitory memory comprising one or more sequences of instructions which, when executed by the one or more processors, causes steps to be performed comprising:
receiving a route prefix;
and
responsive to determining that a table in the data store in which the route prefix is to be stored has reached a threshold level, performing at least one of the steps comprising:
[a] advertising the route prefix with a high metric to indicated that the information handling system is a non-preferred forwarder for data intended for a destination associated with the route prefix;
and
[b] sending a route withdrawal message to one or more peer information handling systems to remove the information handling system from routing determinations involving the route prefix.

8 more elements

Dependencies are inferred from the claim text.

Preventing or reducing traffic losses

Life of this patent

Preventing or reducing traffic losses

Life of this patent

Abstract

Claims20