Segment Routing over IPv6
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Foundations
Implementations
FAE scenarios
Segment Routing over IPv6
The SRH, uSID and the narrow slice of SRv6 that NVIDIA and Dell actually ship.
SRv6 from RFC 8402/8754/8986 up through RFC 9800 compression, built and broken in containerlab with Linux seg6local and FRR, then mapped onto what really ships: Cumulus Linux 5.14+ uN/uA on Spectrum-4, DOCA Flow SRH push on BlueField-3/ConnectX, community SONiC HLDs, and a Dell Enterprise SONiC / OS10 feature matrix that publishes no SRv6 at all. Twelve lessons, three modules, every lab in a no-hardware (containerlab / NVIDIA Air) and a Dell-lab BlueField-3 variant, ending in the FAE conversation a Dell OEM account will actually have.
Who it is for: Network engineers evaluating SRv6 next to EVPN on Dell SONiC / OS10 and NVIDIA platforms.
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- A case closes when the lesson’s retrieval check reaches 80%.
Read an SRv6 packet off the wire byte by byte, explain a SID as LOC:FUNCT:ARG plus a behavior, and state exactly what became standard in 2024-2025 (RFC 9602, RFC 9800, RFC 9855) versus what is still vendor vocabulary.
- 1.1Source routing, segments, and the two data planesThirty-one boxes, one budget lineUnderstand25 min
- 1.2The SRH on the wirePing is fine, the backups are notAnalyze30 min
- 1.3SIDs as instructions: LOC:FUNCT:ARG and the behavior zooThe config that says the kernel is brokenAnalyze30 min
- 1.4Compression: RFC 9800, NEXT-C-SID, and what "uSID" really meansYour slide says 96 bytes and theirs says 40Analyze30 min
- Module 1 checkpoint14 questions · pass mark 80% · 12 min
Build a working SRv6 domain in containerlab with Linux seg6local and FRR, and state precisely which behaviors NVIDIA's switch and NIC products implement - and which they do not.
- 2.1SRv6 in the Linux kernel: seg6 and seg6localThe route is there and nothing movesApply35 min
- 2.2FRR: locators, the SID Manager, IS-IS SRv6 and TI-LFAZero protected, and a draft that stopped being oneApply35 min
- 2.3NVIDIA switching: uN and uA on Spectrum-4The slide that says SRv6 replaces our MPLS WANAnalyze30 min
- 2.4NVIDIA NIC and DPU: SRH push with DOCA FlowTwo cards, one binaryAnalyze35 min
- Module 2 checkpoint14 questions · pass mark 80% · 12 min
Deliver a defensible SRv6 answer to a Dell OEM customer: build BGP services over SRv6, diagnose a broken domain from first principles, and separate what is published from what is unverified before you say it out loud.
- 3.1L3VPN and EVPN services over SRv6Every VPN prefix went invalid at 02:00Analyze30 min
- 3.2Ping the SID: OAM and the five failures that actually happenThe SID that answered with an errorAnalyze30 min
- 3.3Who actually ships SRv6: the Dell and NVIDIA support matrixDoes Dell do SRv6? One word, they saidEvaluate30 min
- 3.4Design and defend an SRv6 PoC for a Dell OEM accountTwo questions before anyone touches the whiteboardCreate35 min
- Module 3 checkpoint13 questions · pass mark 80% · 12 min