Netgear WNDR3300 사용자 설명서

5-20

Fine-Tuning Your Network

•

Click Delete to remove the QoS policy.

•

Click Edit to edit the QoS policy. Follow the instructions in the preceding sections to 
change the policy settings.

3. Click Apply in the QoS Setup screen to save your changes.

The Maximum Transmission Unit (MTU) is the largest data packet a network device transmits. 
When one network device communicates across the Internet with another, the data packets travel 
through many devices along the way. If any device in the data path has a lower MTU setting than 
the other devices, the data packets must be split or “fragmented” to accommodate the one with the 
smallest MTU. 

The best MTU setting for NETGEAR equipment is often just the default value, and changing the 
value might fix one problem but cause another. Leave MTU unchanged unless one of these 
situations occurs:

•

You have problems connecting to your ISP or other Internet service, and the technical support 
of either the ISP or NETGEAR recommends changing the MTU setting. These might require 
an MTU change:

–

A secure Web site that won’t open, or displays only part of a Web page

–

Yahoo  e-mail

–

MSN

–

America Online’s DSL service

•

You use VPN and have severe performance problems.

•

You used a program to optimize MTU for performance reasons, and now you have 
connectivity or performance problems.

Note: An incorrect MTU setting can cause Internet communication problems such as the 

inability to access certain Web sites, frames within Web sites, secure login pages, 
or FTP or POP servers.