Q-Logic 9000 ViPort Count Configuration, 21. Configure MTU Size, 22. MTU Capability Window

Models: 9000

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Configure MTU Size

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4 – EVIC Configuration and Monitoring Features

4.3.3

Configure MTU Size

Figure 4-21. Configure MTU Size

To configure MTU size, perform the following tasks.

1.From Menu, select Configuration.

2.Select Configure MTU Size. The MTU Capability window is displayed:

Figure 4-22. MTU Capability Window

3.In the Next field, enter a number between 1500 and 8174 (the maximum jumbo frame size currently supported). This value should be equal to or greater than the largest MTU size of any of the VirtualNIC host connections using the EVIC. If it is not, host will be unable to connect.

NOTE:Values larger than 1500 bytes are used to support Jumbo Frames. When enabling Jumbo Frames, make certain that all devices in the Ethernet network are configured to support the same MTU size. Additionally, If any of the Ethernet ports are using tagged VLANs, the MTU size should be increased by 4 bytes (even if the port is not using jumbo frames), since a VLAN tag adds 4 bytes to the message size of a packet. Additionally, an MTU value that is larger than is required may degrade performance.

4. Click Apply.

NOTE:The EVIC must be rebooted for the new MTU size to be updated.

4.3.4

ViPort Count Configuration

Configuring ViPort counts allows the user to set the number of host connections allowed below the maximum supported by the VIO hardware. Doing so allows users

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Q-Logic 9000 manual ViPort Count Configuration, 21. Configure MTU Size, 22. MTU Capability Window