54 lines
1.3 KiB
Groff
54 lines
1.3 KiB
Groff
.\"
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.\" $NetBSD: pvcsif.8,v 1.4 2002/02/02 01:37:13 wiz Exp $
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.\"
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.Dd December 29, 1997
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.Dt PVCSIF 8
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.Os
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.Sh NAME
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.Nm pvcsif
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.Nd configure ATM PVC sub interfaces
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.Sh SYNOPSIS
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.Nm pvcsif
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.Ar interface
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.Op Fl s
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.Nm pvcsif
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.Fl a
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.Sh DESCRIPTION
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.Nm
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creates a sub interface for an ATM PVC.
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A sub interface
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.Xr pvc 4
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is dynamically created.
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The created interface is bound to
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.Ar interface
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but at this point no VC is assigned. To assign a VC,
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.Xr pvctxctl 8
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should be used later.
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.Pp
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A PVC sub interface is intended to use an ATM PVC as an alternative
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serial connection, and to be allocated per PVC basis.
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A PVC sub interface looks as a point-to-point interface
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and is multicast capable, as opposed to the NBMA
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(NonBroadcast Multiple Access) model that requires a MARS server.
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A point-to-point interface is useful to run MBone or protocols
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requiring multicast, such as RSVP and IPv6, over a PVC WAN
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connection.
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.Pp
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Note that a sub interface is not a full-fledged interface but just
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an indirect reference to the real interface.
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.Pp
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The options are as follows:
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.Bl -tag -width Fl
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.It Fl s
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For use with a shell, it prints the created interface name.
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.It Fl a
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Lists the existing sub interfaces.
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.El
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.Sh SEE ALSO
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.Xr en 4 ,
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.Xr pvc 4 ,
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.Xr ifconfig 8 ,
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.Xr pvctxctl 8
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.Sh BUGS
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Currently, there is no way to remove a sub interface.
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