The high-word of the counter of bytes permitted by
this interface.
NOTE: The object ccarStatSwitchedBytes contains the
lower 32 bits of the switched byte counts.
If the number of switched bytes is larger
than what can be stored in a 32 bit value, then
the high word value is stored in this object.
As such SNMP Manager applications should
combine this object along with the
ccarStatSwitchedBytes object to come up with the
64-bit value.
SNMP v2c or v3 Manager can use the
ccarStatHCSwitchedBytes object directly
(which is a 64-bit object).