Managing modern high-density networks requires combining streaming gRPC telemetry, flow record aggregation, and deep kernel packet analysis to resolve transient micro-bursts and buffer bloat.
1. Telemetry Protocols Compared
| Telemetry Type | Granularity | Data Transport | Primary Use Case |
|---|---|---|---|
| SNMPv3 Polling | 60s – 300s polling intervals | UDP 161 (Pull) | Basic interface up/down status, CPU, temperature |
| Streaming Telemetry (gNMI/gRPC) | Sub-second event-driven push | TCP / HTTP/2 (Push) | Real-time buffer utilization, queue drops, routing tables |
| IPFIX / NetFlow v9 | Per-flow session sampling | UDP 2055 / 4739 | Top talkers, protocol distribution, bandwidth accounting |
| eBPF Kernel Probing | Nanosecond socket tracing | Linux Kernel Hook | TCP retransmit diagnostics, container network latency |