Systems and methods for providing dynamic spillover of virtual servers based on bandwidth
First Claim
1. A method comprising:
- (a) establishing, via an appliance, a bandwidth threshold for a first virtual server executing on the appliance for directing connection requests from a plurality of clients to a first plurality of services;
(b) monitoring, by the appliance, a number of bytes transferred via the first virtual server;
(c) determining, by the appliance, a status of a service of the first plurality of services indicates the service is not available;
(d) adjusting, by the appliance, the bandwidth threshold to account for the status of the service;
(e) determining, by the appliance, the monitored number of bytes transferred via the first virtual server exceeds the bandwidth threshold; and
(f) directing, by the appliance in response to the determination, a connection request of a client to a second virtual server executing on the appliance.
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Accused Products
Abstract
The present solution provides a spillover management technique for virtual servers of an appliance based on bandwidth. A network administrator may configure a bandwidth threshold for one or more virtual servers, such as virtual servers providing acceleration or load balancing for one or more services. The bandwidth threshold may be specified as a number of bytes transferred via the virtual server. The bandwidth threshold may also be specified as a round trip time or derivative thereof. A user may specify the bandwidth threshold via a configuration interface. Otherwise, the appliance may establish the bandwidth threshold. The appliance monitors the bandwidth used by a first virtual server. In response to detecting the bandwidth reaching or exceeding the bandwidth threshold, the appliance dynamically directs client requests to a second virtual server.
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Citations
45 Claims
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1. A method comprising:
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(a) establishing, via an appliance, a bandwidth threshold for a first virtual server executing on the appliance for directing connection requests from a plurality of clients to a first plurality of services; (b) monitoring, by the appliance, a number of bytes transferred via the first virtual server; (c) determining, by the appliance, a status of a service of the first plurality of services indicates the service is not available; (d) adjusting, by the appliance, the bandwidth threshold to account for the status of the service; (e) determining, by the appliance, the monitored number of bytes transferred via the first virtual server exceeds the bandwidth threshold; and (f) directing, by the appliance in response to the determination, a connection request of a client to a second virtual server executing on the appliance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An appliance comprising:
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a virtual server switching mechanism determining to direct requests from clients to a virtual server of a plurality of virtual servers; a first virtual server executing on the appliance for directing connection requests from a plurality of clients to a first plurality of services; a monitoring agent determining a status of a service of the first plurality of services indicates the service is not available; and wherein the load monitor adjusts a bandwidth threshold to account for the status of the service, determines a number of bytes transferred via the first virtual service exceeds the bandwidth threshold, and in response to the determination, the virtual server switching mechanism directs a connection request for a client to a second virtual server executing on the appliance. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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Specification