Date: Thu, 13 Feb 2003 17:02:34 -0800 From: "Neeraj Bhatia" <neeraj.bhatia@windriver.com> To: <freebsd-net@freebsd.org> Subject: detecting increases in PMTU Message-ID: <01b001c2d3c4$c2f17510$25300b93@alasilvretta>
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hello All, I am running Freebsd 4.7 stable release. in6_mtuexpire is called approximately every MTUTIMO_DEFAULT ie every 1 minute. Shouldn't this value be such that the increases in MTU can be detected less frequently,in accordance with RFC 1981, Path MTU Discovery for IPv6. Also the flag RTF_PROBEMTU is not being used at the moment.Please let me know if I am missing something. One way would be to handle the issue could be as follows.When sending the packet out in ip6_output we could check for RTF_PROBEMTU and bring the mtu value in the route entry back to the link mtu value. Thx. -N =========================== Neeraj Bhatia IP group, Core Networking Wind River Networks (o)510.749.4633 (m)509.475.7106 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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