| US 7,353,276 B2 | ||
| Bi-directional affinity | ||
| William L. Bain, Bellevue, Wash. (US); and Kyril Faenov, Seattle, Wash. (US) | ||
| Assigned to Microsoft Corporation, Redmond, Wash. (US) | ||
| Filed on Feb. 13, 2003, as Appl. No. 10/365,810. | ||
| Prior Publication US 2004/0205250 A1, Oct. 14, 2004 | ||
| Int. Cl. G06F 15/167 (2006.01); G06F 15/16 (2006.01) | ||
| U.S. Cl. 709—225 [709/214; 709/217] | 14 Claims |
| 1. A network load balancing/external network interface node, for use in a system including multiple network load balancing/external
network interface nodes, including bi-directional load balancing affinity with regard to requests from external clients and
corresponding responses from internal network servers, the network load balancing/external network interface node comprising:
an external network load balancing adapter that executes a load-balancing algorithm to determine whether a received client
request is accepted by the network load balancing/external network interface node;
an external network interface utility that processes the received client request and maintains state information associated
with the received client request;
an internal network load balancing adapter that ensures the network load balancing/external network interface node accepts
a response from an internal network server corresponding to the received client request, the internal network load balancing
adapter comprising:
a complementary load-balancing algorithm to ensure that the network load balancing/external network interface node that processed
the received client request processes the received server response, wherein the complementary load-balancing algorithm executes
simultaneously on the network load balancing/external network interface nodes.
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