Veritas Access Appliance Initial Configuration and Administration Guide
- Getting to know the Access Appliance
- Preparing to configure the appliance
- Configuring the appliance for the first time
- Getting started with the Veritas Access GUI
- Storage management
- Network connection management
- Configuring network address settings on the appliance nodes
- About VLAN tagging on the appliance
- Configuring static routes on the appliance
- Configuring DNS and host name mapping on the appliance
- About the maximum transmission unit size on the appliance
- About the Veritas Remote Management Console
- Setting the date and time on the appliance
- Monitoring the appliance
- Resetting the appliance to factory settings
- Appliance security
- About Access Appliance security
- About Access appliance user account privileges
- Changing the Maintenance user account password
- About the Access Appliance intrusion detection system
- About Access appliance operating system security
- About data security on the Access appliance
- About data integrity on the Access appliance
- Recommended IPMI settings on the Access appliance
- Troubleshooting
About the maximum transmission unit size on the appliance
The MTU property controls the maximum transmission unit size for an ethernet frame. The standard maximum transmission unit size for Ethernet is 1500 bytes (without headers). In supported environments, the MTU property can be set to larger values in excess of 9,000 bytes. Setting a larger frame size on an interface is commonly referred to as using jumbo frames. Jumbo frames help reduce fragmentation as data is sent over the network and in some cases, can also provide better throughput and reduced CPU usage. To take advantage of jumbo frames, the Ethernet cards, drivers, and switching must all support jumbo frames. Additionally, each server interface that is used to transfer data to the appliance must be configured for jumbo frames.
Veritas recommends that if you configure the MTU property of an interface to values larger than 1500 bytes, make sure that all systems that are connected to the appliance on the specific interface have the same maximum transmission unit size. Such systems include things as remote desktops. Also verify the network hardware, OS, and driver support on all systems before you configure the MTU property.
You can configure the MTU property of an appliance network interface using the SetProperty command from Main > Network view of the Access Appliance shell menu.
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