Configuring the ECN330-switch
162 1553-KDU 137 365 Uen D 2006-06-16
• Source/Destination Subnet Mask – Subnet mask for source or
destination address. (See the description for SubMask on page 160.)
• Service Type – Packet priority settings based on the following criteria:
• Precedence – IP precedence level. (Range: 0-8, 8 means any)
• TOS – Type of Service level. (Range: 0-16, 16 means any)
• DSCP – DSCP priority level. (Range: 0-64, 64 means any)
• Protocol – Specifies the protocol type to match as TCP, UDP or Others,
where others indicates a specific protocol number (0-255). (Options:
TCP, UDP, Others; Default: TCP)
• Source/Destination Port – Source/destination port number for the
specified protocol type. (Range: 0-65535)
• Source/Destination Port Bitmask – Decimal number representing the
port bits to match. (Range: 0-65535)
• Control Code – Decimal number (representing a bit string) that
specifies flag bits in byte 14 of the TCP header. (Range: 0-63)
• Control Code Bitmask – Decimal number representing the code bits to
match. The control bitmask is a decimal number (for an equivalent
binary bit mask) that is applied to the control code. Enter a decimal
number, where the equivalent binary bit “1” means to match a bit and “0”
means to ignore a bit. The following bits may be specified:
• 1 (fin) – Finish
• 2 (syn) – Synchronize
• 4 (rst) – Reset
• 8 (psh) – Push
• 16 (ack) – Acknowledgement
• 32 (urg) – Urgent pointer
• For example, use the code value and mask below to catch packets with
the following flags set:
• SYN flag valid, use control-code 2, control bitmask 2
• Both SYN and ACK valid, use control-code 18, control bitmask 18
• SYN valid and ACK invalid, use control-code 2, control bitmask 18
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