User's Manual

27
To enable LLDP and VLAN learning, user can check the “Enable LLDP” and “Enable Learning Function” in
VIP-1120PT/VIP-2140PT web portal [Network/Advanced /LLDP Settings]
3.3 DSCP
Differentiated services or DiffServ is a computer networking architecture that specifies a simple, scalable
and coarse-grained mechanism for classifying and managing network traffic and providing quality of
service (QoS) on modern IP networks. DiffServ can, for example, be used to provide low-latency to critical
network traffic such as voice or streaming media while providing simple but best service to non-critical
services such as web traffic or file transfers.
DiffServ uses a 6-bit differentiated services code point (DSCP) in the 8-bit Differentiated services Field (DS
field) in the IP header for packet classification purposes. The DS field and ECN field replace the outdated
IPv4 TOS field.
To configure the QoS, user can get access to VIP-1120PT/VIP-2140PT web portal [Network/Advanced /
Quality of Service (QoS) Settings]