6.0

6 Click the NIC Teaming tab.
You can override the failover order at the port group level. By default, new adapters are active for all
policies. New adapters carry traffic for the standard switch and its port group unless you specify
otherwise.
7 In the Load Balancing list, select an option for how to select an uplink.
Option Description
Route based on the originating port
ID
Select an uplink based on the virtual port where the traffic entered the
standard switch.
Route based on ip hash
Select an uplink based on a hash of the source and destination IP addresses
of each packet. For non-IP packets, whatever is at those offsets is used to
compute the hash.
Route based on source MAC hash
Select an uplink based on a hash of the source Ethernet.
Use explicit failover order
Always use the highest order uplink from the list of Active adapters that
passes failover detection criteria.
8 In the Network failover detection list, select the option to use for failover detection.
Option Description
Link Status only
Relies solely on the link status that the network adapter provides. This
option detects failures, such as cable pulls and physical switch power
failures, but not configuration errors, such as a physical switch port being
blocked by spanning tree or misconfigured to the wrong VLAN or cable
pulls on the other side of a physical switch.
Beacon Probing
Sends out and listens for beacon probes on all NICs in the team and uses
this information, in addition to link status, to determine link failure. This
option detects many of the failures mentioned above that are not detected
by link status alone.
NOTE Do not use beacon probing with IP-hash load balancing.
9 Select Yes or No to notify switches in the case of failover.
If you select Yes, whenever a virtual NIC is connected to the standard switch or whenever that virtual
NIC’s traffic is routed over a different physical NIC in the team because of a failover event, a
notification is sent over the network to update the lookup tables on the physical switches. In almost all
cases, this is desirable for the lowest latency of failover occurrences and migrations with vMotion.
Do not use this option when the virtual machines using the port group are using Microsoft Network
Load Balancing (NLB) in unicast mode. No such issue exists with NLB running in multicast mode.
10 Select Yes or No to disable or enable failback.
This option determines how a physical adapter is returned to active duty after recovering from a
failure. If failback is set to Yes, the adapter is returned to active duty immediately on recovery,
displacing the standby adapter that took over its slot, if any. If failback is set to No, a failed adapter is
left inactive even after recovery until another active adapter fails, requiring its replacement.
Chapter 22 Networking Policies
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