Port-Based Priority Setting (Per Port Setting); 802.1P Classification (Per Port Setting); Dscp Classification (Per Port Setting) - KTI Networks KSD-800M Series Installation Manual

3.1.3.1 Port-based Priority Setting (per port setting)

As one port is configured to be enabled for port-based priority, all received packets on the port will be
classified as high priority. The options are:
Enable - All packets received on the port are classified as high priority
Disable - Port-based classification is not applied.

3.1.3.2 802.1p Classification (per port setting)

For a received 802.1Q VLAN tagged packet, the switch will check the 3-bit User Priority value in TCI
(Tag Control Information) field of packet tag data. If the priority value is equal or larger than a config-
ured 802.1p High Priority Tag Setting, the packet is classified as high priority.
Enable - Tagged packets received on the port are classified by comparing the packet's User
Priority value and 802.1p High Priority Tag Threshold Setting.
Disable - 802.1p classification is not applied.

3.1.3.3 DSCP Classification (per port setting)

As a port is enabled for IP DSCP classification, the switch will check the DiffServ Code Point (DSCP)
value of the IP packets received on the port.
Enable - IP packets received on the port are classified by checking the packet's DSCP value.
Disable - DSCP classification is not applied.
The following checks are performed to classify the packet priority:
1. Default DSCP : If the packet's DSCP value is one the default code point listed below, the
packet is classified as high priority. EF - <101110>, AF - <001010> <010010> <011010>
<100010> and Network Control - <111000> <110000>.
2. User Defined DSCP : If the packet's DSCP value matches the user defined DSCP(A) and
DSCP(B) settings, the packet is classified as high priority. DSCP(A) and DSCP(B) settings will
be described later.
User defined DSCP(A) and DSCP(B) can be enabled respectively.
User Defined DSCP(A) Classification (Global)
User can configure a specific DSCP value in DSCP(A) setting as high priority beside default DSCPs.
Enable - Enable DSCP(A) checking
Disable - DSCP(A) classification is not applied.
User Defined DSCP(B) Classification (Global)
User can configure a specific DSCP value in DSCP(B) setting as high priority beside default DSCPs.
Enable - Enable DSCP(B) checking
Disable - DSCP(B) classification is not applied.
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