'\" te
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.TH NET_GETPMTUENABLED 9F "May 1, 2008"
.SH NAME
net_getpmtuenabled \- determine if path MTU discovery is enabled for a network
protocol
.SH SYNOPSIS
.nf
#include <sys/neti.h>

\fBint\fR \fBnet_getpmtuenabled\fR(\fBconst\fR \fBnet_data_t\fR \fInet\fR);
.fi

.SH INTERFACE LEVEL
illumos DDI specific (illumos DDI).
.SH PARAMETERS
.ne 2
.na
\fB\fInet\fR\fR
.ad
.RS 7n
value returned from a successful call to \fBnet_protocol_lookup\fR(9F).
.RE

.SH DESCRIPTION
The \fBnet_getpmtuenabled()\fR function returns a value to indicate whether or
not path \fBMTU\fR (\fBPMTU\fR) discovery is enabled for this network protocol.
.SH RETURN VALUES
The \fBnet_getpmtuenabled()\fR function returns:
.sp
.ne 2
.na
\fB-1\fR
.ad
.RS 6n
The network protocol does not support this function.
.RE

.sp
.ne 2
.na
\fB0\fR
.ad
.RS 6n
PATH MTU discovery is disabled.
.RE

.sp
.ne 2
.na
\fB1\fR
.ad
.RS 6n
PATH MTU discovery is enabled.
.RE

.SH CONTEXT
The \fBnet_getpmtuenabled()\fR function may be called from user,  kernel, or
interrupt context.
.SH ATTRIBUTES
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
_
Interface Stability	Committed
.TE

.SH SEE ALSO
\fBnet_getmtu\fR(9F), \fBnet_protocol_lookup\fR(9F)