The value of vRtrIfQosEgrPortRedirectQGrp specifies the name of the QoS
queue-group (TIMETRA-QOS-MIB::tQosEgrQGroupName) used with this
interface.
An 'inconsistentValue' error is returned if this object is set to a
non-default value and an entry corresponding to vRtrIfPortID does
not exist in TIMETRA-PORT-MIB::tPortNetEgrQGrpTable.