Architecture overviewArchitecture overview Introduction TerminologyThreading model Listeners ListenersListener filtersNetwork Filter ChainNetwork (L3/L4) filtersTCP proxyUDP proxyDNS FilterConnection limiting HTTP HTTP connection managementHTTP filtersHTTP routingHTTP3 overviewHTTP upgradesHTTP dynamic forward proxy Upstream clusters Cluster managerService discoveryDNS ResolutionHealth checkingConnection poolingLoad BalancingAggregate ClusterOutlier detectionCircuit breakingUpstream network filtersLoad Reporting Service (LRS) Observability StatisticsAccess loggingTracing Security TLSJSON Web Token (JWT) AuthenticationExternal AuthorizationRole Based Access ControlThreat modelExternal dependenciesGoogle Vulnerability Reward Program (VRP) Operations & configuration xDS configuration API overviewInitializationDrainingRuntime configurationHot restartOverload manager Other features Local rate limitingGlobal rate limitingBandwidth limitingScriptingIP TransparencyCompression Libraries Other protocols gRPCMongoDBDynamoDBRedisPostgres Advanced Sharing data between filtersAttributesGeneric Matching