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DR Series Best Practice Guide
17
1. Disable Spanning Tree
2. Connect to a single switch using ALB
3. Enable 802.3ad
Adaptive load balancing
By default, the DR4100 sets up bonding on its fastest interfaces. If the appliance is configured with NIC
combo 3 ( see Table 1 ) the 2x 10GB interfaces will become the new bond0. If the DR4100 is configured
with combo 1, the 4x 1GB interfaces will become bond0. As of firmware 2.1 the default bond behavior
can be changed by utilizing the auto_bonding_speed parameter. See below for usage example.
To reset the default bond run the command:
network --factory_reset [--auto_bonding_speed <1G|10G>]
After resetting the interface the DR4100 will prompt you to enter a reboot command.
Note: Always ensure that data source system (i.e. systems that send data to the DR4100) are located
on the same subnet. Failure to do so will result in all traffic being sent to the first interface in the
bond. This is because adaptive load balancing cannot properly load balance when data sources are
located on a remote subnet. This is a result of ALB use of (ARP) which is subnet-specific and a
router’s inability to send ARP broadcast and updates.
Note: This command has to be issued from iDRAC, KVM or a local interface because it will
disconnect any existing network connections.