| Description | This object is used to set the trust state of an interface.
(whether the packets arriving at an interface are trusted to
carry the correct data for classification.)
If the object is untrusted(1), then the DSCP assigned to the
packet is the DSCP specified by classification rule obtained
from the matching ACE (Access Control Entry). ACE is a filter
that is used to identify flows with certain characteristics. It
includes fields such as ingress/egress ports, L2 addresses, L3
addresses , TCP/UDP port number.
If this object is trustCoS(2), then the DSCP assigned
to the packet is the layer2 CoS of the packet mapped to a
DSCP by the CoS-to-DSCP mapping defined in object
caqCosToDscpDscp.
When this object is trustIpPrec(3), a DSCP is assigned to
an IP packet according to the IP-Precedence-to-DSCP mapping
defined by the values contained in caqIpPrecToDscpTable. For
non-IP packets, trustIpPrec(3) has identical behavior as
trustCoS(2).
When this object is trustDscp(4), the DSCP contained in an IP
packet is trusted as being the correct value to assign to it.
For non-IP packets, trustDscp(4) has identical behavior as
trustCoS(2). |