Dell Brocade 5100 Brocade Fabric OS v7.3.0a Release Notes v2.0 - Page 8
Monitoring and Alerting Policy Suite MAPS Enhancements
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FOS v7.3 increase IPSec performance on Brocade 7840 with near line-rate throughput. FOS v7.3 implements IPSec configuration through a policy applied to a FCIP tunnel. IPSec supports both IPv4 and IPv6 and jumbo frames. Adaptive Rate Limiting (ARL) Enhancements FOS v7.3 implements two new ARL algorithms, Modified Multiplicative Decrease and Time-based Decrease, to provide additional performance tailored to network conditions. In addition, ARL ramp up time has been decreased from 10s to 1s comparing to Brocade 7800. Increased Compression Performance FOS v7.3 supports increased compression performance on FC data frames on Brocade 7840 before they are sent through FCIP channels. End users can choose None, Aggressive Deflate, Deflate, and Fast Deflate compression algorithm to choose from the highest compression ratio but lowest pre-compression throughput at 10G to lowest compression ratio but highest pre-compression throughput at 40G. Path MTU Discovery FOS v7.3 supports path MTU discovery on Brocade 7840 to automatically discover IP MTU settings over the WANs. Stream Based Flow Control FOS v7.3 supports stream based flow control on Brocade 7840 to isolate slow devices from affecting performance of other devices for emulated devices sharing the same VE_Port. Out of Order TCP Delivery FOS v7.3 supports out of order TCP delivery on Brocade 7840 over WAN connections to minimize retransmission of FC frames in a scenario of TCP packet loss. WAN Test Tool FOS v7.3 supports a WAN test tool on Brocade 7840 to generate test traffic over a pair of IP addresses to test a WAN path for any network issue. Monitoring and Alerting Policy Suite (MAPS) Enhancements FOS v7.3 has a number of important MAPS feature enhancements. These include: Monitor Fabric Performance Impact Monitor new FCIP statistics on Brocade 7840 Monitor fabric scalability limits Monitor ClearLink Diagnostic ports Monitor Ethernet management ports Monitor Flow Vision learning flows Support Port Decommissioning as an action Support dynamic groups Support port group augmentation Usability enhancements Monitor Fabric Performance Impact FOS v7.3 supports automatic monitoring and alerting of latency bottleneck conditions through pre-defined thresholds and alerts in all pre-defined policies in MAPS. The advanced monitoring capabilities identify ports in Fabric OS v7.3.0a Release Notes v2.0 Page 8 of 55