Table 316: Add Match Criteria Fields (continued)
Field
Description
Destination L4 Port
Select this option to require a packet's TCP/UDP destination port to match the
specified port or the port number within a range of port numbers. If you
configure a range, a match occurs if a packet's destination port number is the
same as any destination port number within the range. After you select this
option, use the following fields to configure a destination port keyword,
destination port number, or destination port range for the match criteria:
•
Protocol – Select the desired L4 keyword from the list on which the match is
based. If you select a keyword, the other destination port configuration fields
are not available.
•
Port End – A user-defined L4 destination port number to match or the
destination port number with the lowest value within a range of ports.
•
Port Start – The destination port with the highest value within the range of
ports. This field is not required if the match criteria is a single port.
IP DSCP
Select this option to require the packet's IP DiffServ Code Point (DSCP) value to
match the specified value. The DSCP value is defined as the high-order six bits of
the Service Type octet in the IP header. After you select this option, use one of
the following fields to configure the IP DSCP match criteria:
•
IP DSCP Keyword – The IP DSCP keyword code that corresponds to the IP
DSCP value to match. If you select a keyword, you cannot configure an IP
DSCP Value.
•
IP DSCP Value – The IP DSCP value to match.
IP Precedence
Select this option to require the packet's IP Precedence value to match the
number configured in the IP Precedence Value field. The IP Precedence field in a
packet is defined as the high-order three bits of the Service Type octet in the IP
header.
IP TOS
Select this option to require the packet's Type of Service (ToS) bits in the IP
header to match the specified value. The IP ToS field in a packet is defined as all
eight bits of the Service Type octet in the IP header. After you select this option,
use the following fields to configure the ToS match criteria:
•
IP TOS Bits – Enter a two-digit hexadecimal number to match the bits in a
packet's ToS field.
•
IP TOS Mask – Specify the bit positions that are used for comparison against
the IP ToS field in a packet.
Protocol
Select this option to require a packet header's Layer 4 protocol to match the
specified value. After you select this option, use one of the following fields to
configure the protocol match criteria:
•
Protocol – The L4 keyword that corresponds to value of the IANA protocol
number to match. If you select a keyword, you cannot configure a Protocol
Value.
•
Protocol Value – The IANA L4 protocol number value to match.
Flow Label
Select this option to require an IPv6 packet's flow label to match the configured
value. The flow label is a 20-bit number that is unique to an IPv6 packet, used by
end stations to signify quality-of-service handling in routers.
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Configuring Quality of Service
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