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virt(4) [netbsd man page]

VIRT(4) 						   BSD Kernel Interfaces Manual 						   VIRT(4)

NAME
virt -- rump virtual network interface SYNOPSIS
#include <rump/rump.h> int rump_pub_virtif_create(int num); DESCRIPTION
The virt interface acts as a link between a rump virtual kernel and a host tap(4) interface. Interface number <n> always corresponds with the host tap interface tap<n>. All data sent by virt is written into /dev/tap<n> and all data read from /dev/tap<n> is passed as Ethernet input to the rump virtual kernel. A virt interface can be created in two ways: o Programmatically by calling rump_pub_virtif_create(). o Dynamically at runtime with ifconfig(8) or equivalent using the create command. Destroying a virt interface is possible only through ifconfig(8) destroy. The host's tap(4) interface can be further bridged with hardware interfaces to provide full Internet access to a rump kernel. SEE ALSO
rump(3), bridge(4), tap(4), brconfig(8), ifconfig(8) BSD
November 15, 2010 BSD

Check Out this Related Man Page

RUMP.HALT(1)						    BSD General Commands Manual 					      RUMP.HALT(1)

NAME
rump.halt -- halt a rump kernel SYNOPSIS
rump.halt [-dhn] DESCRIPTION
The rump.halt utility exits a rump kernel. The file system cache, if present, is flushed. Since a rump kernel does not control its clients, they are not directly affected by rump.halt. However, they will be unable to request further services from the halted rump kernel. The options are as follows: -d Create a core dump. The core file is saved according to standard userland program coredump rules, and can be later examined with a debugger. -h By default the process hosting the rump kernel exits. Using this option shuts down rump kernel activity, but does not cause the hosting process to exit. -n Do not flush the file system cache. This option should be used with extreme caution. It can be used if a virtual disk or a virtual processor is virtually on fire. SEE ALSO
rump(3) HISTORY
The rump.halt command appeared in NetBSD 6.0. CAVEATS
While using -h makes it impossible to issue further system calls, it does not necessarily stop all activity in a rump kernel. It is recom- mended this option is used only for debugging purposes. BSD
December 12, 2010 BSD
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