Linksys WRVS4400N manual QoS Tab, Application-based

Wireless-N Gigabit Security Router with VPN

QoS Tab

QoS (Quality of Service) allows you to prioritize network traffic using either Application-based priority (such as Web browsing applications, FTP applications, etc.) or Port-based priority, which allows you to assign priorities to the four physical network ports. Higher priority traffic will be allocated more bandwidth, which results in lower latency (or delay).

Application-based

The Application-based QoS controls priority differentiation for data packets between LAN (including WLAN) and WAN ports. Application-based QoS is achieved by software running on the CPU so it cannot control traffic between LANs that are switched directly by a hardware switch chipset.

Application-based QoS. QoS (Quality of Service) is disabled by default. When enabled, this option allows you to assign priority based on the application type.

Set Internet Bandwidth. Enter approximate bandwidth number for your WAN connection. This will help the
software-based algorithm to allocate bandwidth to different priorities.	Figure 6-47: QoS - Application Based

		Table 1: Application-based QoS
Application	Port(s)		Primary Use
Name
FTP	TCP Port 20		FTP (File Transfer Protocol) is used for transferring files over the Internet.
HTTP	TCP Port 80		HTTP (HyperText Transfer Protocol) is used for browsing the Internet.
Telnet	TCP Port 23		Telnet is a client-server protocol used to communicate over a network or
			the Internet.
SMTP	TCP Port 25		SMTP (Simple Mail Transfer Protocol) is used for sending e-mail.
POP3	TCP Port 110		POP3 (Post Office Protocol version 3) is used for retrieving e-mail.
Specific Port	User Defined		User Defined (0-65535)

IMPORTANT: If you don’t assign different priorities to applications, there will be no differentiation between different traffic types.

• Select the desired option for each application: High priority, Medium priority, or Low priority.

Chapter 6: Setting Up and Configuring the Router 65

QoS Tab