Chapter 21 Classifier
GS2220 Series User’s Guide
211
DSCP
IPv4/IPv6
Select Any to classify traffic from any DSCP or select the second option and specify a DSCP (DiffServ
Code Point) number between 0 and 63 in the field provided.
Preceden
ce
Select Any to classify traffic from any precedence or select the second option and specify an IP
Precedence (the first 3 bits of the 8-bit ToS field) value between 0 and 7 in the field provided.
ToS Select Any to classify traffic from any ToS or select the second option and specify Type of Service (the
last 5 bits of the 8-bit ToS field) value between 0 and 255 in the field provided.
IP Protocol Select an IPv4 protocol type or select O the r and enter the protocol number in decimal value.
You may select Esta blish O nly for TC P protocol type. This means that the Switch will pick out the
packets that are sent to establish TCP connections.
IPv6 Next
Header
Select an IPv6 protocol type or select O the r and enter an 8-bit next header in the IPv6 packet. The
Next Header field is similar to the IPv4 Protocol field. The IPv6 protocol number ranges from 1 to 255.
You may select Esta blish O nly for TC P protocol type. This means that the Switch will identify packets
that initiate or acknowledge (establish) TCP connections.
Source
IP
Address/
Address
Prefix
Enter a source IP address in dotted decimal notation.
Specify the address prefix by entering the number of ones in the subnet mask.
A subnet mask can be represented in a 32-bit notation. For example, the subnet mask “255.255.255.0”
can be represented as “11111111.11111111.11111111.00000000”, and counting up the number of
ones in this case results in 24.
Destination
IP
Address/
Address
Prefix
Enter a destination IP address in dotted decimal notation.
Specify the address prefix by entering the number of ones in the subnet mask.
Layer 4
Specify the fields below to configure a layer 4 classifier.
Source
Socket
Number
Note: You must select either UDP or TC P in the IP Proto c o l field before you configure the
socket numbers.
Select Any to apply the rule to all TCP/UDP protocol port numbers or select the second option and
enter a TCP/UDP protocol port number.
Destination
Socket
Number
Note: You must select either UDP or TC P in the IP Proto c o l field before you configure the
socket numbers.
Select Any to apply the rule to all TCP/UDP protocol port numbers or select the second option and
enter a TCP/UDP protocol port number.
Add Click this to create a new entry or to update an existing one.
This saves your changes to the Switch’s run-time memory. The Switch loses these changes if it is turned
off or loses power, so use the Sa ve link on the top navigation panel to save your changes to the non-
volatile memory when you are done configuring.
Cancel Click Ca nc e l to reset the fields back to your previous configuration.
Clear Click Cle a r to set the above fields back to the factory defaults.
Table 88 Advanced Application > Classifier > Classifier Configuration (continued)
LABEL DESCRIPTIO N
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