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NIC Modes and NIC Redundancy Settings

NIC Modes

This server has the following NIC mode settings that you can choose from:

• Shared LOM EXT (default)—This is the Shared LOM extended mode, the factory-default setting. With

• Dedicated—The dedicated management port is used to access Cisco IMC. You must select a NIC

• Shared LOM—The 1-Gb Ethernet ports are used to access Cisco IMC. You must select a NIC redundancy

• Cisco Card—The ports on an installed Cisco UCS virtual interface card (VIC) are used to access Cisco

• VIC Slot—If you use the Cisco Card NIC mode, you select this setting to match where your VIC is

NIC Redundancy

This server has the following NIC redundancy settings that you can choose from:

• None—The Ethernet ports operate independently and do not fail over if there is a problem. This setting

• Active-standby—If an active Ethernet port fails, traffic fails over to a standby port.

• Active-active—All Ethernet ports are utilized simultaneously. Shared LOM EXT mode can have only

Cisco Secure Network Server 3500 Series Appliance Hardware Installation Guide

this mode, the shared LOM and Cisco Card interfaces are both enabled.

In this mode, DHCP replies are returned to both the shared LOM ports and the Cisco card ports. If the

system determines that the Cisco card connection is not getting its IP address from a Cisco UCS Manager

system because the server is in standalone mode, further DHCP requests from the Cisco card are disabled.

If the system determines that the Cisco card connection is getting its IP address from a Cisco UCS

Manager system, the reply has parameters that automatically move the server to UCSM mode.

redundancy and IP setting.

and IP setting.

IMC. You must select a NIC redundancy and IP setting.

See also the required VIC Slot setting below.

installed. The choices are Riser1, Riser2, or Flex-LOM (the mLOM slot).

• If you select Riser1, slot 1 is used.

• If you select Riser2, slot 2 is used.

• If you select Flex-LOM, you must use an mLOM-style VIC in the mLOM sl

can be used only with the Dedicated NIC mode.

this NIC redundancy setting. Shared LOM and Cisco Card modes can have both Active-standby and

Active-active settings.

The active/active setting uses Mode 5 or Balance-TLB (adaptive transmit load balancing). This is channel

bonding that does not require any special switch support. The outgoing traffic is distributed according

to the current load (computed relative to the speed) on each standby. Incoming traffic is received by the

current standby. If the receiving standby fails, another standby takes over the MAC address of the failed

receiving standby.

Install the Cisco SNS 3515 and Cisco SNS 3595 Hardware Appliances