29
IP DiffServ Classification
IP DiffServ Classification (Figure 3-21) works by prioritizing traffic based on the 8-bit Service Type field in
each packet as defined by the IETF for differentiated services. Under the differentiated services
interpretation, the first six bits comprise a codepoint, which is sometimes abbreviated DSCP, and the last
two bits are left unused.
IP DiffServ Classification allows you to select the prioritization level (high or low) based on the DiffServ
field value which ranges from 0 to 63. This works similarly to VLAN Tag priority. Click “Apply” to save your
settings.
Figure 3-21: IP DiffServ Configuration
3.6 SNMP
Configuration
The SNMP Configuration page (Figure 3-23) allows the user to configure the SNMP settings for the
switch. Any Network Management System (NMS) running the Simple Network Management Protocol
(SNMP) can manage the switch, provided that the Management Information Base (MIB) is installed
correctly on the managing computer. SNMP is a protocol that is used to govern the transfer of information
between SNMP manager and agent and traverses the Object Identity (OID) of the Management
Information Base (MIB). An SNMP agent runs on the switch to respond to requests issued by SNMP
manager. The SNMP agent is passive, only responding to requests, except for trap information which is
sent from the switch.
