Ethernet Port Usage

The Ethernet ports on the appliance perform different functions, which vary depending on deployment and configuration choices. The Ethernet ports that transmit and receive traffic to the appliance are as follows:

• LAN1 port – This is the default port for single appliances and passive nodes in HA pairs. All deployments use the LAN port for management services if the MGMT port is disabled.
• LAN2 port – The LAN2 port is not enabled by default. By default, the appliance uses the LAN1 port (and HA port when deployed in an HA pair). To enable and configure the LAN2 port, you must have read/write permission to the appliance on which you want to enable the port. The LAN2 port is available on Infoblox-250-A, 550-A,-1050-A, -1550-A, -1552-A, -1852-A, -2000-A, and -4010 appliances. For information about how to use the LAN2 port, see /wiki/spaces/mgmadminguide/pages/911183809
• HA port – This is the default port for the active node of an HA pair.
• MGMT port – If the MGMT port is enabled, the appliance uses it for many types of management services (see19282746 for specific types).

19282746 displays the type of traffic per port for both Multi-Grid Master and members. For a more detailed list of the different types of traffic, see 19282746.

Table 8.1 Appliance Roles and Configuration, Communication Types, and Port Usage

Table 8.2 Appliance Roles and Configuration, Communication Types, and Port Usage for Appliances with LAN2 Ports

To see the service port numbers and the source and destination locations for traffic that can go to and from the appliance, see 19282746. This information is particularly useful for firewall administrators so that they can set policies to allow traffic to pass through the firewall as required.

Note: The colors in both tables represent a particular type of traffic and correlate with each other.

Table 8.3 Sources and Destinations for Services

Modifying Ethernet Port Settings
By default, the appliance automatically negotiates the optimal connection speed and transmission type (full or half duplex) on the physical links between the 10/100Base-T and 10/100/1000Base-T ports on the appliance and the Ethernet ports on a connecting switch. It is usually unnecessary to change the default auto-negotiation setting; however, you can manually configure connection settings for a port if necessary.
Occasionally, for example, even though both the appliance and the connecting switch support 1000-Mbps (megabits per second) full-duplex connections, they might fail to auto-negotiate that speed and type, and instead connect at lower speeds of either 100 or 10 Mbps using potentially mismatched full- and half-duplex transmissions. If this occurs, first determine if there is a firmware upgrade available for the switch. If so, apply the firmware upgrade and test the connection. If that does not resolve the issue, manually set the ports on the appliance and on the switch to make 1000-Mbps full-duplex connections.
To change Ethernet port settings:

1. From the Master Grid tab, select the Members tab -> master_grid_member checkbox, and then click the Edit icon.
   

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   Note: You must enable the MGMT port before modifying its port settings. See /wiki/spaces/mgmadminguide/pages/911184031.
   

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2. In the Network tab of the Master Grid Member Properties editor, the Required Ports and Addresses table lists the network settings that were configured.
• Port Settings: Choose the connection speed that you want the port to use. You can also choose the duplex setting. Choose Full for concurrent bidirectional data transmission or Half for data transmission in one direction at a time. You cannot configure port settings for vNIOS appliances.
3. Save the configuration.
   

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   Note: The port settings on the connecting switch must be identical to those you set on the appliance.
   

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