On 07/16/2014 11:39 AM, Tsantilas Christos wrote: > Hi all, > Squid currently does not make a check for the TOS values used in squid > configuration file. Squid will accept 8bit numbers as TOS values, however: > 1) TOS values with 1st ad 2nd bit set can not be used. These bits used > by the ECN. For Linux if someone try to set the 0x23 value as TOS value > (which sets 1st and 1nd bits), the 0x20 will be used instead, without > any warn for the user. > > 2) Some of the TOS values are already reserved for example those which > are reserved from RFC2597. > > The above may confuse squid users. > > Maybe it is not bad idea to: > - Warn users when try to use TOS value which uses the ECN bits > - Warn users when try to use TOS values which are not reserved. The > user will know that this value is free for use. > > Opinions?
This is not my area of expertise, but * the first proposed warning sound good to me, and * it is not clear to me whether Squid should avoid using ToS values from RFC 2597. It feels like Squid could, in some cases, _set_ those ToS values to use RFC 2597 features provided by its network. Thank you, Alex.
