Users Guide

11–Marvell Teaming Services
Troubleshooting Teaming Problems
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 A team that requires maximum throughput should use LACP or GEC\FEC.
In these cases, the intermediate driver is only responsible for the outbound
load balancing while the switch performs the inbound load balancing.
 Aggregated teams (802.3ad\LACP and GEC\FEC) must be connected to
only a single switch that supports IEEE 802.3a, LACP, or GEC/FEC.
 Marvell does not recommend that you connect any team to a hub, because
hubs only support half duplex. Connect hubs to a team for troubleshooting
purposes only. Disabling the device driver of a network adapter participating
in an LACP or GEC/FEC team may have adverse affects with network
connectivity. To avoid a network connection loss, Marvell recommends that
you first physically disconnect the adapter from the switch before disabling
the device driver.
 Verify that the base (miniport) and team (intermediate) drivers are from the
same release package. Dell does not test or support mixing base and
teaming drivers from different releases.
 Before placing into a production environment, test the connectivity to each
physical adapter prior to teaming.
 Test the failover and fallback behavior of the team.
 When moving from a nonproduction network to a production network, it is
strongly recommended to test again for failover and fallback.
 Test the performance behavior of the team before placing into a production
environment.
 Network teaming is not supported when running iSCSI traffic through the
Microsoft iSCSI initiator or iSCSI offload. Use MPIO instead of Marvell
network teaming for these ports.
 For information on iSCSI boot and iSCSI offload restrictions, see Chapter 10
iSCSI Protocol.
Troubleshooting Guidelines
Before you call Dell support, make sure you have completed the following steps
for troubleshooting network connectivity problems when the server is using
adapter teaming.
1. Make sure the link light is ON for every adapter and that all the cables are
attached.
2. Check that the matching base and intermediate drivers belong to the same
Dell release and are loaded correctly.
3. Check for a valid IP address using the Windows ipconfig command.
4. Check that STP is disabled or Edge Port or Port Fast is enabled on the
switch ports connected to the team or that LiveLink is being used.