DokuWiki

claudecode - created

admin (admin@undisclosed.example.com) — 2026-10-28T14:26:02+00:00

====== Claude Code — Working Reference ======Scope: current behaviour as of late Oct 2026 (release line v2.1.3xx). Built from the official docs at code.claude.com and the 7-part listening series. Version-specific details drift fast: check /release-notes

linux

admin (admin@undisclosed.example.com) — 2026-10-25T10:07:35+00:00

CLI EDITING SHORTCUTS Ctrl-A: go to the beginning of line Ctrl-E: go to the end of line Alt-B: skip one word backward Alt-F: skip one word forward Ctrl-U: delete to the beginning of line Ctrl-K: delete to the end of line Alt-D: delete to the end of word

tshoot-roce

admin (admin@undisclosed.example.com) — 2026-10-09T15:12:15+00:00

Slow JCT troubleshooting – Spectrum-X Ethernet (east-west fabric), hypothetical example Hypothetical design and invented values. Values read from dashboards (Grafana/Prometheus, fabric telemetry, drop telemetry) are stated directly. CLI is shown only where it's the natural tool.

tshoot-ib - created

admin (admin@undisclosed.example.com) — 2026-10-09T15:05:56+00:00

Slow JCT troubleshooting – InfiniBand (QM9700) example All values are invented but realistic. Outputs are abridged. Context * Fabric: 2048 H200 GPUs = 256 nodes × 8 GPUs and 8 NICs (CX-7, 400G). Rail-optimised, 2-tier QM9700: 8 SUs × 32 nodes, 64 leaves, 32 spines.

busbw

admin (admin@undisclosed.example.com) — 2026-10-09T13:55:59+00:00

Rank and busbw for network troubleshooting What a rank is, in network terms A rank is one process of the training job. Normally there is one per GPU, so for you a rank = one GPU and its NIC: one physical endpoint on the fabric. AI-team term Your translation (H200, rail-optimised)

macsec

admin (admin@undisclosed.example.com) — 2026-10-08T20:33:33+00:00

MACsec explained The idea in one paragraph MACsec encrypts one Ethernet hop (port to port). It has two parts: * MKA (MACsec Key Agreement) is the control plane. The two ends prove they share a secret, elect one of them as the boss (the Key Server

containerlab

admin (admin@undisclosed.example.com) — 2026-09-19T12:07:05+00:00

RUN NETLAB INSTANCE IN OCI CLOUD * Create the instance in OCI. Use the following shape. It doesn't consume credit when turned off. * Add the public ssh key * connect to the instance. USer is 'ubuntu', you can find it the 'Instance access' in OCI instance section.

vagrantfile - created - external edit

Anonymous (anonymous@undisclosed.example.com) — 2026-08-23T11:15:02+00:00

[root@mycompany2test.cambridge.mycompany1.co.uk vmx-test]# cat Vagrantfile # -*- mode: ruby -*- # vi: set ft=ruby : def get_mac(oui="28:b7:ad") "Generate a MAC address" nic = (1..3).map{"%0.2x"%rand(256)}.join(":") return "#{oui}:#{nic}" end cwd = Dir.pwd.split("/").last username = ENV['USER'] domain_prefix = "#{username}_#{cwd}" Vagrant.configure("2") do |config| config.vm.define "vmx-vcp-01" do |node| guest_name = "vmx-vcp-01" node.vm.box = "juniper/vmx-vcp" node.vm.box…

vsanvszone_table.png - external edit

Anonymous (anonymous@undisclosed.example.com) — 2026-08-23T11:14:31+00:00

start - created - external edit

Anonymous (anonymous@undisclosed.example.com) — 2024-10-05T20:43:05+00:00

056:10:46 Kranz (FLIGHT): “Okay now, let's everybody keep cool.. Let's solve the problem but let's not make it any worse by guessing.” Gene Kranz In terms of the utilization of resources, the human resource is the most important resource. ----------