Configuration validation checker
AssigneeHewlett-Packard Development Company, L.P.
InventorPankaj Mehra
Life of this patent
Estimating the term…
Abstract
A switch is provided which may include a plurality of ports, a plurality of link up/down detection logic units and a configuration validation checker. Each link up/down detection logic unit may be associated with a port and may detect a change in the state of a link associated with the port. The configuration validation checker couples to each of the link up/down detection logic units and may cause the switch to change its routing behavior with regard to a port for which a link up/down detection unit has detected a state change.
Claims17
A switch, comprising:
- a plurality of ports;
- a plurality of link up/down detection logic units, each link up/down detection logic unit is associated with a port and detects a change in the state of a link associated with the port;
- and
- a configuration validation checker coupled to each of the link up/down detection logic units, said configuration validation checker causes the switch to change its routing behavior with regard to a port for which a link up/down detection unit has detected a state change.
A switch, comprising:
- a plurality of ports;
- a plurality of link up/down detection logic units, each link up/down detection logic unit is associated with a port and detects a change in the state of a link associated with the port;
- and
- a means for causing the switch to change its routing behavior with regard to a port for which a link up/down detection unit has detected a state change.
A network, comprising:
- a plurality of switches coupled together;
- at least one end node coupled to at least one switch;
- wherein at least one switch includes:
- a link up/down detection logic unit associated with a port, said link up/down detection logic unit detects a change in the state of the link;
- and
- a configuration validation checker coupled to the link up/down detection logic unit, said configuration validation checker causes the switch to change its routing behavior with regard to the port if the link up/down detection unit has detected a state change.
The network of claim 15 wherein the link up/down detection logic unit informs the configuration validation checker when the link becomes non-functional, and the configuration validation checker responds by rejecting all packets.
The network of claim 15 further including a plurality of ports and a link up/down detection logic associated with each port, and wherein each link up/down detection logic unit informs the configuration validation checker when a link to an associated port becomes non-functional, and the configuration validation checker responds by rejecting all packets destined to that link.
A method performed by a switch contained in a system, comprising:
- the switch detecting a link down event associated with said switch, said link down event indicative of a link from the switch to an entity becoming non-functional;
- receiving a packet into said switch;
- the switch determining if said packet is to be routed out through a port associated with the detected link down event;
- and
- if the switch determines that the packet is to be routed out through a port associated with a detected link down event, the switch discarding the packet.
The method of clam 15 further including the switch receiving a unique identifier from the entity, comparing the unique identifier received from the entity to state information contained in the switch and, if the unique identifier from the entity does not match a value in the state information, discarding a packet destined for the entity.
Dependencies are inferred from the claim text.