net_getmtu man page on SmartOS

net_getmtu man page on SmartOS

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NET_GETMTU(9F)							NET_GETMTU(9F)

NAME
       net_getmtu - determine the MTU of a given network interface

SYNOPSIS
       #include <sys/neti.h>

       int net_getmtu(const net_data_t net, const phy_if_t ifp);

INTERFACE LEVEL
       Solaris DDI specific (Solaris DDI).

PARAMETERS
       net
	      value   returned	 from	a   successful	 call	to  net_proto‐
	      col_lookup(9F).

       ifp
	      value returned from a successful call  to	 net_phylookup(9F)  or
	      net_phygetnext(9F).

DESCRIPTION
       The net_getmtu() function receives information about the current MTU of
       a network interface. The value returned from this function call	should
       not be cached as the MTU of a network interface since it is not guaran‐
       teed to be constant.

RETURN VALUES
       The net_getmtu() function returns -1 if the network protocol  does  not
       support	this feature and otherwise returns the current MTU of the net‐
       work interface.

CONTEXT
       The net_getmtu() function may be called from user,  kernel,  or	inter‐
       rupt context.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       ┌────────────────────┬─────────────────┐
       │  ATTRIBUTE TYPE    │ ATTRIBUTE VALUE │
       ├────────────────────┼─────────────────┤
       │Interface Stability │ Committed	      │
       └────────────────────┴─────────────────┘

SEE ALSO
       net_phygetnext(9F), net_phylookup(9F), net_protocol_lookup(9F)

				  May 1, 2008			NET_GETMTU(9F)

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