![]() ![]() ![]() To implement this tweak, in the registry editor (Start>Run> regedit) find: Keep in mind that disabling Nagle's algorithm may have some negative effect on file transfers, and can only help reduce delay in some games. While this improves overall performance and reduces TCP/IP overhead, it may briefly delay transmission of smaller packets. The dafault state (Nagling enabled) improves performance by allowing several small packets to be combined together into a single, larger packet for more efficient transmission. Note that disabling Nagle's algorithm is only recommended for some games, and it may have negative impact on file transfers/throughput. Disabling "nagling" allows for very small packets to be transferred immediately without delay. The tweak below allows for tweaking or disabling Nagle's alogrithm. Minus the UDP header in the first fragment gives us a nice, round 67 KB. Being an offset, we add 1,480 for the last UDP fragment to get 67,008. So the range of such offsets an IP packet can refer to is 0.65,528 bytes. This field is 13-bit, allowing 8,192 values, which are in 8-byte units. IP packets include a fragment offset field, which indicates the byte offset of the UDP fragment in relation to its UDP packet. With UDP, this is going to happen either way. The maximum possible UDP payload is 67 KB, split into 45 IP packets, adding an additional 900 bytes of overhead (IPv4, MTU 1500, minimal 20-byte IP headers).Īny UDP packet may be fragmented. But this isn't too important, because losing a fragment has the same effect as losing an unfragmented packet: the entire packet is dropped. The maximum safe UDP payload is 508 bytes. This is a packet size of 576 (the "minimum maximum reassembly buffer size"), minus the maximum 60-byte IP header and the 8-byte UDP header. Some network equipment cannot handle packets larger than 1468 bytes, particularly under heavy load. Note: When you configure the UDP packet size, remember that UDP packets must travel through different devices that may not support large UDP packets. MaximumUdpPacketSize=576 (DWORD, default value is 1280 bytes. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DNS\Parameters To change the UDP packet size, in the Windows Registry: ![]() UDP over IP has a total header length of 32 bytes (12 bytes for UDP, and 20 bytes for IP). ![]() " MaximumUdpPacketSize"=dword:00000240 ( DECIMAL 576 ) Maximal Unfragmented Value? ![]()
0 Comments
Leave a Reply. |