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Diffstat (limited to 'Documentation/networking/udplite.txt')
| -rw-r--r-- | Documentation/networking/udplite.txt | 25 |
1 files changed, 11 insertions, 14 deletions
diff --git a/Documentation/networking/udplite.txt b/Documentation/networking/udplite.txt index dd6f46b83da..d727a382910 100644 --- a/Documentation/networking/udplite.txt +++ b/Documentation/networking/udplite.txt @@ -11,11 +11,13 @@ This file briefly describes the existing kernel support and the socket API. For in-depth information, you can consult: - o The UDP-Lite Homepage: http://www.erg.abdn.ac.uk/users/gerrit/udp-lite/ - Fom here you can also download some example application source code. + o The UDP-Lite Homepage: + http://web.archive.org/web/*/http://www.erg.abdn.ac.uk/users/gerrit/udp-lite/ + From here you can also download some example application source code. o The UDP-Lite HOWTO on - http://www.erg.abdn.ac.uk/users/gerrit/udp-lite/files/UDP-Lite-HOWTO.txt + http://web.archive.org/web/*/http://www.erg.abdn.ac.uk/users/gerrit/udp-lite/ + files/UDP-Lite-HOWTO.txt o The Wireshark UDP-Lite WiKi (with capture files): http://wiki.wireshark.org/Lightweight_User_Datagram_Protocol @@ -26,12 +28,7 @@ I) APPLICATIONS Several applications have been ported successfully to UDP-Lite. Ethereal - (now called wireshark) has UDP-Litev4/v6 support by default. The tarball on - - http://www.erg.abdn.ac.uk/users/gerrit/udp-lite/files/udplite_linux.tar.gz - - has source code for several v4/v6 client-server and network testing examples. - + (now called wireshark) has UDP-Litev4/v6 support by default. Porting applications to UDP-Lite is straightforward: only socket level and IPPROTO need to be changed; senders additionally set the checksum coverage length (default = header length = 8). Details are in the next section. @@ -139,7 +136,7 @@ 3) Disabling the Checksum Computation On both sender and receiver, checksumming will always be performed - and can not be disabled using SO_NO_CHECK. Thus + and cannot be disabled using SO_NO_CHECK. Thus setsockopt(sockfd, SOL_SOCKET, SO_NO_CHECK, ... ); @@ -148,7 +145,7 @@ getsockopt(sockfd, SOL_SOCKET, SO_NO_CHECK, &value, ...); is meaningless (as in TCP). Packets with a zero checksum field are - illegal (cf. RFC 3828, sec. 3.1) will be silently discarded. + illegal (cf. RFC 3828, sec. 3.1) and will be silently discarded. 4) Fragmentation @@ -223,7 +220,7 @@ While it is important that such cases are dealt with correctly, they are (annoyingly) rare: UDP-Lite is designed for optimising multimedia performance over wireless (or generally noisy) links and thus smaller - coverage lenghts are likely to be expected. + coverage lengths are likely to be expected. V) UDP-LITE RUNTIME STATISTICS AND THEIR MEANING @@ -236,7 +233,7 @@ This displays UDP-Lite statistics variables, whose meaning is as follows. - InDatagrams: Total number of received datagrams. + InDatagrams: The total number of datagrams delivered to users. NoPorts: Number of packets received to an unknown port. These cases are counted separately (not as InErrors). @@ -259,7 +256,7 @@ VI) IPTABLES There is packet match support for UDP-Lite as well as support for the LOG target. - If you copy and paste the following line into /etc/protcols, + If you copy and paste the following line into /etc/protocols, udplite 136 UDP-Lite # UDP-Lite [RFC 3828] |