Updated: 2021/Apr/14

XENNET(4)                 Device Drivers Manual (xen)                XENNET(4)

     xennet - Xen frontend paravirtualized network interface

     xennet* at xenbus?

     The xennet interface forms the frontend part of the paravirtualized
     drivers used by Xen guest domains to have network connectivity.

     When the host domain is NetBSD, the endpoint of the xennet interface is a
     xvif(4) interface.  In the XenStore, xvif and xennet are identified by
     "vif" (virtual interface) entries.

     Conceptually, frontends and backends drivers are similar to two Ethernet
     cards connected via a crossover cable.

     xennet interfaces can pass VLAN tagged packets.

     xennet%d: can't read mac address, err %d  The MAC address for this
     interface could not be read from XenStore.

     xennet%d: %s is not a valid mac address  The MAC address specified in the
     configuration file of the newly created guest domain is invalid.

     xennet%d: using event channel %d  The Xen event channel (virtual
     interrupt) ID associated to this xennet.

     xennet%d: using RX copy mode  The xennet and its associated endpoint use
     copy mode for communication: packets are copied from one domain's memory
     to another.

     bridge(4), ifmedia(4), xenbus(4), xvif(4), ifconfig(8)

     The xennet driver first appeared in NetBSD 3.0.

     The xennet driver was written by Manuel Bouyer <bouyer@NetBSD.org> and
     Christian Limpach <chris@pin.lu>.

NetBSD 9.99                      April 5, 2020                     NetBSD 9.99