v0.3.0

Added

• 17 new flow record types (enterprise=0):
  • NAT port translation (format 1020): ExtendedNatPort
  • InfiniBand (formats 1031–1033): ExtendedIbLrh, ExtendedIbGrh, ExtendedIbBrh
  • Hardware trap & drop monitoring (formats 1041–1042): ExtendedHwTrap, ExtendedLinuxDropReason
  • Nanosecond timestamp (format 1043): ExtendedTimestamp
  • Application context (formats 2203–2205): AppParentContext, AppInitiator, AppTarget
  • TCP info (format 2209): ExtendedTcpInfo
  • Entities (format 2210): ExtendedEntities
• 4 new vendor-specific counter record types:
  • Broadcom BST device buffers (enterprise=4413, format=1): BroadcomBstDeviceBuffers
  • Broadcom BST port buffers (enterprise=4413, format=2): BroadcomBstPortBuffers
  • Broadcom ASIC hardware tables (enterprise=4413, format=3): BroadcomHwTables
  • NVIDIA GPU via NVML (enterprise=5703, format=1): NvidiaGpu
• Discarded Packet sample type (enterprise=0, format=5): DiscardedPacket — dropped packet notification with reason code and flow records
• ParseContext::DiscardedPacket variant for error reporting
• Throughput benchmark (throughput_bench) measuring realistic multi-sample datagram parsing (~1.9 GiB/s on Apple Silicon)
• Spec validation tool (validate_sflow example) for verifying hex-encoded sFlow datagrams against the sFlow v5 specification

Improved

• Total flow record types: 38 → 55
• Total counter record types: 43 → 48 (including 5 vendor-specific)
• Total sample types: 4 → 5
• Published benchmark results in README
• Updated protocol structure diagram in README

v0.1.0 (Initial Release)

v0.1.0 (Initial Release)

• sFlow v5 datagram parsing with IPv4 and IPv6 agent addresses
• All four sample types: Flow Sample, Counter Sample, Expanded Flow Sample, Expanded Counter Sample
• Flow record types: Raw Packet Header, Sampled Ethernet, Sampled IPv4/IPv6, Extended Switch, Extended Router, Extended Gateway, Extended User, Extended URL
• Counter record types: Generic Interface, Ethernet Interface, Token Ring, VLAN, Processor
• Unknown/unrecognized records preserved as raw bytes for forward compatibility
• Serde support for all types (JSON serialization/deserialization)
• Builder pattern with configurable max samples limit (DoS protection)
• Structured error types: Incomplete, UnsupportedVersion, ParseError, TooManySamples
• Examples: single-threaded, multi-threaded, and async (tokio) UDP listeners; pcap file parser
• Benchmarks for datagram, flow sample, and counter sample parsing