Allows you to select a TOS/Diffserv value for packets outgoing
on the server side, based on an ACL.
tcp_outgoing_tos ds-field [!]aclname ...
Example where normal_service_net uses the TOS value 0x00
and good_service_net uses 0x20
acl normal_service_net src 10.0.0.0/24
acl good_service_net src 10.0.1.0/24
tcp_outgoing_tos 0x00 normal_service_net
tcp_outgoing_tos 0x20 good_service_net
TOS/DSCP values really only have local significance - so you should
know what you're specifying. For more information, see RFC2474,
RFC2475, and RFC3260.
The TOS/DSCP byte must be exactly that - a octet value 0 - 255, or
"default" to use whatever default your host has.
Note that only multiples of 4 are usable as the two rightmost bits have
been redefined for use by ECN (RFC 3168 section 23.1).
The squid parser will enforce this by masking away the ECN bits.
Processing proceeds in the order specified, and stops at first fully
matching line.
Only fast ACLs are supported.