lk/networking/graph-easy.md

title	tags
Easy Network Graph	Documentation Networking

Set up a file like this, called troubleshooting.txt.

[ Is there an IP address? ] -- no --> [ Check NIC driver, dmesg ]

[ Is there an IP address? ] -- yes --> [ Can you ping the router? ]

[ Can you ping the router? ] -- no --> [ Check cables, router, and switches ]

[ Can you ping the router? ] -- yes --> [ Can you ping a DNS address? ]

[ Can you ping a DNS address? ] -- no --> [ Trying pinging 8.8.8.8 ]

[ Can you ping a DNS address? ] -- yes --> [ Traceroute ]

Then translate it with:

graph-easy troubleshooting.txt --as boxart

┌────────────┐     ┌─────────────────────────┐  yes   ┌────────────────────────────────────┐  yes   ┌─────────────────────────────┐  yes   ┌────────────┐
│ no Network │ ──> │ Is there an IP address? │ ─────> │      Can you ping the router?      │ ─────> │ Can you ping a DNS address? │ ─────> │ Traceroute │
└────────────┘     └─────────────────────────┘        └────────────────────────────────────┘        └─────────────────────────────┘        └────────────┘
                     │                                  │                                             │
                     │ no                               │ no                                          │ no
                     ∨                                  ∨                                             ∨
                   ┌─────────────────────────┐        ┌────────────────────────────────────┐        ┌─────────────────────────────┐
                   │ Check NIC driver, dmesg │        │ Check cables, router, and switches │        │   Trying pinging 8.8.8.8    │
                   └─────────────────────────┘        └────────────────────────────────────┘        └─────────────────────────────┘

Many options allow different displays. Try placing this in a file:

[ One ] { fill: seagreen; color: white; } -- label --> [ Two ] { shape: triangle; }

[ One ] => { arrow-style: closed; } [ Three ] { border-style: none; }

[ Five ] { fill: maroon; color: yellow; } <=> [ Three ]

[ One ] .. Test\n label ..> [ Four ]

[ Three ] { border-style: dashed; }

.. Test\n label ..> { arrow-style: closed; } [ Six ] { label: Sixty\n Six\nand\nsix; }

[ Three ] <-- Test label --> { arrow-style: closed; } [ Six ]

[ Eight ] .. [ None ] { shape: none; fill: red; color: brown; }

[ no Network ] --> [ Is there an IP address? ]

[ Little Group: o]

echo "( EU [ Madrid ] <---> [ K ] {label: Karlsruhe;}
    <== ...O\n ..o\n .O\no \nchoo choo  ==> [ Cern ] [ Cern ] <== ...O\n ..o\n .O\no \nchoo choo  ==> [ Paris ] <...> [ B ] {label: Budapest} )
    [ B ] <---> [ Belgrade ] [ G ] {label: Glasgow; }
    <==> [ M ] {label: Manchester },
    [ Madrid ] <---> [ Belgrade ] [ M ] <--> [ London ] <--> [ B ],
        [ Belgrade ]" | graph-easy  --boxart