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CHAPTER 3
INTRODUCTION TO CLI
etype:
This option can only be used to filter Ethernet II formatted packets. (Options: Any, Specific – 600-ffff
hex; Default: ffff). Note that 800 (IPv4) and 86DD (IPv6) are excluded. A detailed listing of Ethernet protocol
types can be found in RFC 1060. A few of the more common types include 0800 (IP), 0806 (ARP), 8137 (IPX).
llc:
LLC refers to Link Logical Control and further provides three options.
dsap:
DSAP stands for Destination Service Access Point address. By default, any is used. Specify
“any” or indicate a value (0x00 to 0xFF).
ssap:
SSAP stands for Source Service Access Point address. By default, any is used. Specify “any” or
indicate a value (0x00 - 0xFF).
control:
Control field may contain command, response, or sequence information depending on
whether the LLC frame type is Unnumbered, Supervisory, or Information. By default, any is used.
Specify “any” or indicate a value (0x00 to 0xFF).
snap:
SubNetwork Access Protocol can be distinguished by an OUI and a Protocol ID. (Options for PID: Any,
Specific (0x00-0xffff); Default: Any) If the OUI is hexadecimal 000000, the protocol ID is the Ethernet type
(EtherType) field value for the protocol running on top of SNAP. If the OUI is that of a particular organization,
the protocol ID is a value assigned by that organization to the protocol running on top of SNAP. In other
words, if value of the OUI field is 00-00-00, then value of the PID will be etherType (0x0600-0xffff), and if
value of the OUI isother than 00-00-00, then valid value of the PID will be any value from 0x0000 to 0xffff.
ipv4:
proto:
IPv4 frame type includes Any, TCP, UDP, Other. If “TCP” or “UDP” is specified, you might
further define Sport (Source port number) and Dport (Destination port number).
sip:
Specify source IP type. By default, any is used. Indicate self-defined source IP and submask
format. The address and mask must be in the format x.y.z.w where x, y, z, and w are decimal
numbers between 0 and 255. When the mask is converted to a 32-bit binary string and read from
left to right, all bits following the first zero must also be zero
dscp:
By default, any is used. Indicate a DSCP value or a range of DSCP value.
fragment:
By default, any is used. Datagrams sometimes may be fragmented to ensure they can pass
through a network device that uses a maximum transfer unit smaller than the original packet’s size.
ipv6:
proto:
IPv6 protocol includes Any, TCP, UDP, Other. If “TCP” or “UDP” is specified, you may need to
further define Sport (Source port number) and Dport (Destination port number).
sip:
Specify source IP type. By default, any is used. You can also indicate self-defined source IP and
submask format.
dscp:
By default, any is used. You can also indicate a DSCP value or a range of DSCP value.
[ action { [ cos { <action_cos> | default } ]: Specify the classification action taken on ingress frame if the
parameters match the frame’s content. If a frame matches the QCE, it will be put in the queue corresponding to
the specified QoS class or placed in a queue based on basic classification rules.
[ dpl { <action_dpl> | default } ]: If a frame matches the QCE, the drop precedence level will be set to the
specified value or left unchanged.
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