Explicador de perfis de protocolo L4 do LTM
A decisão de perfis de protocolo em cartões: o tcp full-proxy com todos os recursos, os quatro f5-tcp-* vivos que a F5 atualiza continuamente (somente leitura, ajustados via perfis filhos) versus o trio legado -optimized congelado, o caminho de pacotes PVA do FastL4 com o par loose para roteamento assimétrico, e o caso HTTP estreito-mas-rápido do FastHTTP com sua lista completa de critérios de uso e o K8024 como leitura obrigatória.
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Endpoint da APIGEThttps://ronutz.com/api/v1/f5-l4-profile-explainerDocumentado, não servido. Abre a especificação.
Referências
- F5 DevCentral: F5 Unveils New Built-In TCP Profiles (the 13.0 announcement, verbatim: f5-tcp-wan/lan/mobile as updated versions of the -optimized trio; f5-tcp-progressive as the general-use latest-features profile; the living contract, immediate landing in progressive and a couple of releases later elsewhere; the five read-only profiles and the child-profile custom-flag discipline; the benchmark criteria)
- BIG-IP LTM Profiles Reference 13.1 - Protocol Profiles (FastL4's purpose: PVA hardware processing some or all Layer 4 traffic, the virtual-server pairings, dynamic ePVA offload; FastHTTP's composition from TCP Express, HTTP, and OneConnect, its full when-to-use criteria list, and the Connection-header reuse benefit; the tcp-family descriptions and the mobile under-1-MB sizing note)
- BIG-IP LTM Profiles Reference 21.0 - Protocol Profiles (both TCP families, legacy and living, still shipping side by side)
- tmsh ltm profile fastl4 man page v13 (option semantics with defaults: loose-initialization accepting any TCP packet rather than requiring a SYN and loose-close on the first FIN, both default disabled; pva-acceleration full/none/partial/dedicated; pva-offload-dynamic and -state; tcp-timestamp-mode and tcp-wscale-mode defaulting to preserve; mss-override; late-binding with the FIX-profile requirement)
- K93100324: BIG-IP LTM operations guide, virtual servers chapter (Performance (Layer 4) recommended when little or no L4/L7 processing is required, minimal L7 information limiting load-balancing scope, ePVA offload; Performance (HTTP) with FastHTTP, possibly the fastest way under certain circumstances with specific requirements and limitations, K8024 as required reading; Forwarding (IP) needing FastL4 options; translation disabled when steering to inspection devices)
- K8024: Overview of the Fast HTTP profile (the canonical requirements-and-limitations K article the operations guide points to; cited by number, my.f5 renders client-side)
- K09948701: Overview of the FastL4 profile (the canonical FastL4 overview K article; cited by number, my.f5 renders client-side)