Cross Reference: /src/sys/netinet/tcp

Lines Matching defs:mtu
981 		/* for IPv6, always try to run path MTU discovery */
1347 			 * - recalculate the new MTU and create the
1349 			 * - ignore the MTU change notification.
1389 	u_int mtu;
1437 		 * ICMP header, recalculate the new MTU, and create the
1449 		 * If the ICMP message advertises a Next-Hop MTU
1453 		mtu = (u_int)ntohs(icp->icmp_nextmtu);
1454 		if (mtu >= tp->t_pmtud_mtu_sent)
1456 		if (mtu >= tcp_hdrsz(tp) + tp->t_pmtud_mss_acked) {
1458 			 * Calculate new MTU, and create corresponding
1527  * Path MTU Discovery handlers.
1544  * On receipt of path MTU corrections, flush old route and replace it
1571 		 * use the MTU because we know it's smaller
1593  * Path MTU Discovery handlers.
1632 		 * use the MTU because we know it's smaller
1664  *	 max(if mtu) - ip header - tcp header
1674 	 * In order to avoid defeating path MTU discovery on the peer,
1675 	 * we advertise the max MTU of all attached networks as our MSS,
1678 	 * We provide the option to advertise just the MTU of
1685 	 * MSS, as the loopback MTU is never included in in_maxmtu.
1943 		 * XXX The lock bit for MTU indicates that the value
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