Flex Hash and Optimized Boot-UpThis chapter describes the Flex Hash and fast-boot enhancements.Topics:• load-balance ingress-port enable• load-balance flexhash• reload-type fastboot• lacp fast-switchover• encapsulation dot1qload-balance ingress-port enableEnable the Flex hash functionality. This utility is supported on the platform.Syntax load-balance ingress-port enableTo disable the Flex hash capability, use the no version of this command.Default NoneCommand Modes CONFIGURATION modeCommand History Version Description9.10(0.0) Introduced on the S6100-ON.9.8(1.0) Introduced on the Z9100–ON.9.3(0.0) Introduced on the S6000 platform.9.2(1.0) Introduced on the Z9500.Usage Information Flex hash uses the RTAG7 bins 2 and 3 (overlay bins). These bins must be enabled for Flex hash to be configured.These bins contain the source module and source port information. These bins are disabled by default in releases ofDell Networking OS earlier than Release 9.3.0.0. The default behavior of disabling of these bins occurs because ofincorrect egress port information that would otherwise be displayed in the output of the diagnostic show commandof show ip flow.As a result, when load balancing of RRoCE packets using Flex hash is enabled, the show ip flow command isnot functional. Similarly, when show ip flow command operates (ingress port based load balancing is disabled)the hashing of RRoCE packets is not operational.Flex hash APIs do not mask out unwanted byte values after extraction of the data from the Layer 4 headers for theoffset value.Example Dell#load-balance ingress-port enable15590 Flex Hash and Optimized Boot-Up
