Type of Service (set-tos) We will also set the type of service (TOS, set-tos) to "ef" for new versions of OpenBSD or at least "reliability" to try to make the routers on the upload path reduce packet loss and travel time. Packet loss and retransmission are going to cause retransmission times of up to three(3) seconds which is a huge delay. You can also set the TOS to "lowdelay" to try to reduce the latency of the packets on the network for gaming. In gaming you do not care if a packet was lost as it is already to late to worry about it. For general use we highly recomend using a TOS setting of "ef" which signafies "Expedited Forwarding." Normally "ef" is good for VOIP communication, but we find this value works exceptionally well for all traffic. For FreeBSD we suggest using "reliability". Note, instead of using the word "reliability" you can also use "set-tos 0x04". TOS XORmask Suggested Use lowdelay 0x10 ftp, telnet, ssh throughput 0x08 ftp-data, www, data servers reliability 0x04 snmp, dns, or general ef 0x2E VOIP, games af31 0x68 VOIP af32 0x70 VOIP cs3 0x60 VOIP