ZyXEL NetAtlas User Guide - Page 283

Chapter 19 EPON Profile Configuration Table 142 EPON Profile Configuration > Add Policy Link Rule Profile > Set Rule LABEL DESCRIPTION Right Mask The value field is 64-bit long in a Boolean comparison. If the value you specified is less than 64 bits, select a mask between 0 and 63 to define how many bit(s) from the right will turn to zero and not be used for comparison when the specified value is right-aligned. This is useful when you want to check only few bits in a pre-defined field, such as the 3bit CoS value (by setting the left mask to 48 and the right mask to 13) or 12-bit VLAN ID (by setting the left mask to 52) in a 32-bit VLAN tag. Operator For example, if the value you specified is a network address with a 24-bit subnet mask, set the left mask to 32 and the right mask to 8. Select the operator that applies to the incoming packets. Select == (equal to) and the matched packet must contain the field exactly the same as what you specified in the Field and Value fields. Select != (not equal to) and the matched packets must not contain the field exactly the same as what you specified in the Field and Value fields. Select = and the matched packet must contain the field which is greater than or equal to what you specified in the Value field. Select exists and the matched packet must include the field you specified in the Field field. Select !exists and the matched packet must not include the field you specified in the Field field. Select Always match and the packet always matches the profile regardless of what you specified in the Field and Value fields. NetAtlas EPON Manager User's Guide 283