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4 Broadcom Gigabit Ethernet Teaming Services 147
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4.8.10 Troubleshooting Teaming Problems
When running a protocol analyzer over a virtual adapter teamed interface, the MAC address shown in
the transmitted frames may not be correct. The analyzer does not show the frames as constructed by
BASP and shows the MAC address of the team and not the MAC address of the interface transmitting
the frame. It is suggested to use the following process to monitor a team:
• Mirror all uplink ports from the team at the switch.
• If the team spans two switches, mirror the interlink trunk as well.
• Sample all mirror ports independently.
• On the analyzer, use an adapter and driver that does not filter QoS and VLAN information.
Teaming Configuration Tips
When troubleshooting network connectivity or teaming functionality issues, ensure that the following
information is true for your configuration.
• Although mixed-speed SLB teaming is supported, it is recommended that all adapters in a team be
the same speed (either all Gigabit Ethernet or all Fast Ethernet).
• If LiveLink is not enabled, disable Spanning Tree Protocol or enable an STP mode that bypasses
the initial phases (for example, Port Fast, Edge Port) for the switch ports connected to a team.
• All switches that the team is directly connected to must have the same hardware revision, firmware
revision, and software revision to be supported.
• To be teamed, adapters should be members of the same VLAN. In the event that multiple teams are
configured, each team should be on a separate network.
• Do not use the Locally Administered Address on any physical adapter that is a member of a team.
• Remove any static IP address from the individual physical team members before the team is built.
• 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.
• It is not recommended to connect any team to a hub, as a hub only support half duplex. Hubs
should be connected to a team for troubleshooting purposes only.
• Verify the base (Miniport) and team (intermediate) drivers are from the same release package. The
mixing of base and teaming drivers from different CD releases is not supported.
• Test the connectivity to each physical adapter prior to teaming.
• Test the failover and fallback behavior of the team before placing into a production environment.
• 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.