| Description | This object reports the set of DSID-Indexed PHS rules
that are signaled between the CMTS and CMs as part
of the Multicast Sessions setup. The attributes PhsMask,
PhsSize and PhsVerify comes from the configuration
object CmtsGrpPhsCfg. The value of the PhsField
attribute is derived by the CMTS from the CmtsGrpCfg
object parameters, and possibly other IP header informaton
of the multicast session that the CMTS is capable
of knowning prior to the multicast session setup.
In cases where the PhsSize is longer than the CMTS
knowledge of IP/TCP header fields, the CMTS extends
the PhsMask with bits set to 0 until reaching the equivalent
PhsSize value. |