Update CLI samples across the documentation to the new layered
presentation: physical-medium row when linked (1000baseT/...), bare
MACs, and key: value DATA tokens. Add a short prose block in
ethernet.md and iface.md explaining the layering.
Drop the historical 'show interfaces' (plural) form — removed from
klish years ago — from all user-facing examples and the landing page.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Add support for static ARP (IPv4) and neighbor cache (IPv6) entries per
interface. Static entries are installed as permanent kernel neighbor
table entries that are never evicted by normal ARP/NDP aging.
Fixes#819
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
The networking guide has grown out of control for quite some time, it is
time to split it up into multiple files. This will hopefully also make
it a bit more accessible to users.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>