D-Link DES-3226 User Manual - Configure Port Access Entity

DES-3226 NWay Standalone Fast Ethernet Switch User’s Guide 

Differentiated Services brings scalable Quality of Service to the Internet Protocol environment, using a 

Type of Service (TOS) field in the IP header. The Switch has the capability to change the TOS 

precedence field (the first 3 bits of the TOS field) based on the packet classification. 

This screen allows you to set the following features: 

•  Configure Port from [    ] to [    ] – Enter the port or ports to be set. 

•  Diffserv – Choose from three options: Disabled, DSCP, and TOS.

•  Mode  – Under DSCP  (Differentiated Service Code Point), there are two choices, Change if 0 or 

Force Overwrite.If Force Overwrite is selected, the differentiated services field of an incoming 

Ipv4 packet will be overwritten with the entered value. When Change if 0 is selected, the 

differentiated services field of an incoming Ipv4 packet will be overwritten with the entered value 

if the original value of the DSCP filed is zero. There are three choices under TOS (Type of 

Service): TOS Overwrite 802.1p, 802.1p Overwrite TOS, and Force Overwrite. If Force Overwrite is 

selected, the IP TOS precedence of incoming Ipv4 packets will be overwritten with the entered 

value. If TOS Overwrite 802.1p is selected, the 802.1p tag control priority field of incoming Ipv4 

packets will change to the value in the IP TOS precedence field. This action both alerts this field 

in the packet and changes the 802.1p priority used to determine the hardware CoS queue. If 

802.1p Overwrite TOS is selected, the IP TOS precedence of incoming Ipv4 packets will be 

changed to the value in the 802.1p tag control priority field.

•  DCSP value –Enter a DCSP value between 0 and 63 in this field.   

•  TOS value –Enter a TOS value between 0 and 7 in this field. 

Configure Port Access Entity 

The DES-3226 allows you to set the authentication status of individual ports on your Switch on the 

following menu. 

Select Configure Port Access Entity on the Configuration menu and press Enter. 

Figure 6-40.  PAE Configuration menu 

PAE System Configuration 

Select Configure PAE System Control and press Enter to access the following menu: 

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