Router-sized 4096-entry rings on every port with GRO kept across
forwarding, the IOMMU in passthrough mode, and EEE pinned off on the
I226-V ports as one trigger for their link-drop erratum. The ring and
GRO settings are .link files, so they land on a device add event rather
than at switch time.
Also document the tuning deliberately not done -- coalescing and PCIe
ASPM -- and what measuring the NICs' ESP offload found, since the
esp4_offload modules are software batching and easy to mistake for it.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
portcullis is wired over 10G to fergal, which uplinks to jim's spare
SFP+ port. That uplink is untagged VLAN 1, so hi is carried tagged on a
lan-hi VLAN interface: a static assignment at 192.168.68.41 / ::6:1,
resolving through the router VIPs like any other hi client. Its gateway
route outranks the DHCP default, making 10G the preferred path while the
2.5G bootstrap stays as a fallback. Deploy now targets that address.
The hi MTU goes on the .network rather than the .link, since a .link is
only applied at udev device-add -- with it there, et10g-0 stays at 1500
across a switch and lan-hi cannot take 9000.
jim's sfp-spare was tagged into hi and lo out of band to match.
fergal turns out to belong with portcullis rather than to the home
fabric -- it goes to Nikhef when the box does -- so its documentation
moves to the colony site, leaving home/switches.md a short section on
what it borrows from that fabric.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
New bare-metal box headed for Nikhef, intended to take over most of
estuary's colony edge routing. This is the bootstrap config only: the
hardware, the single-NVMe ESP + LVM layout, and enough networking to
boot and be reachable.
It is being staged at home before it is racked, so it has no colony
assignments yet. Every 2.5G port takes DHCP and whichever one is
patched in brings the box up; kea registers the DHCP hostname, so the
deploy node points at portcullis.dyn.h.nul.ie until there is a real
colony FQDN for it.
The host key was adopted from the installer session and seeded onto
the persist volume before first boot, so my.secrets.key could be set
up front -- which makes portcullis a recipient of the user-passwd
secret that my.user declares for every box.
Documented with a box page, a row in the colony site index, and a note
in the colony section of networking.md that the topology is expected
to change once portcullis takes over from estuary.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
jackos1998