公开(公告)号：US11528322B1

公开(公告)日：2022-12-13

申请号：US17407861

申请日：2021-08-20

Applicant: Citrix Systems, Inc.

Inventor： Aman Chaudhary ,  Raghav Somanahalli Narayana ,  Arunkanth Abbigari ,  Rajesh Joshi ,  Vemula Srimithra ,  Vinay Shivananda

IPC: G06F15/173 ,  H04L67/1008 ,  H04L67/1023 ,  H04L67/101 ,  H04L67/1014

Abstract: Improving load distribution and consistency is provided. A device intermediary to clients and servers can maintain bit values indicative of server availability stored in indices arranged in various levels. A lowest level comprises indices corresponding to a list of servers repeated multiple times. Each index in a higher level maps to a set of indices in a lower level. The device can receive a request from a client to access a server. The device can identify an index in a highest level. The device can determine a second index in the highest level that is after the index in the highest level and has a bit value indicating server availability. The device can identify an index in the lowest level mapping to the second index in the highest level. The device can select a server corresponding to the index in the lowest level.

公开(公告)号：US11489772B1

公开(公告)日：2022-11-01

申请号：US17398162

申请日：2021-08-10

Applicant: Citrix Systems, Inc.

Inventor： Aman Chaudhary ,  Vemula Srimithra ,  Vinay Shivananda ,  Raghav Somanahalli Narayana ,  Arunkanth Abbigari ,  Anuradha Gupta ,  Rajesh Joshi

IPC: G06F15/16 ,  H04L45/74 ,  H04L47/125 ,  H04L45/021 ,  H04L45/7453

Abstract: Improving distribution of traffic from clients to servers is provided. A device intermediary to a plurality of clients and a plurality of servers can receive a request from a client of the plurality of clients to access one of the plurality of servers. The device can determine a hash value based on at least a portion of the request received from the client. The device can identify an index of a plurality of indices listing the plurality of servers repeated a plurality of times in a deterministic shuffled order. The device can apply a cache array routing protocol (CARP) algorithm to a second plurality of servers listed in a subset of the plurality of indices around the index. The device can select a server from the second plurality of servers with a highest hash value based on the application of the CARP algorithm.