Cisco Systems 5709 Network Hardware User Manual


 
User Guide NetXtreme II
January 2010
Broadcom Corporation
Document ENGSRVT52-CDUM100-R Broadcom Advanced Server Program (BASP) Page 245
Problem: A BASP team in Windows 2003 may not function properly if a team member driver property is modified.
Solution: Due to a limitation in Windows 2003, the features of team members should remain static during the entire life of
the team. To change the characteristics of a team member, remove the team member from the team, modify the team
member, and then re-add the adapter to the team. The limitation does not exist in Windows 2008 and later.
Problem: A system containing an 802.3ad team causes a Netlogon service failure in the system event log and prevents it
from communicating with the domain controller during boot up.
Solution: Microsoft Knowledge Base Article 326152 (http://support.microsoft.com/kb/326152/en-us) indicates that Gigabit
Ethernet adapters may experience problems with connectivity to a domain controller due to link fluctuation while the driver
initializes and negotiates link with the network infrastructure. The link negotiation is further affected when the Gigabit
adapters are participating in an 802.3ad team due to the additional negotiation with a switch required for this team type. As
suggested in the Knowledge Base Article above, disabling media sense as described in a separate Knowledge Base Article
239924 (http://support.microsoft.com/kb/239924/) has shown to be a valid workaround when this problem occurs.
Problem: The 802.3ad team member links disconnect and reconnect continuously (applies to all operating systems).
Solution: This is a third-party issue. It is seen only when configuring an 802.3ad team with greater than two members on
the server and connecting an HP2524 switch, with LACP enabled as passive or active. The HP switch shows an LACP
channel being brought up successfully with only two team members. All other team member links disconnect and reconnect.
This does not occur with a Cisco Catalyst 6500.
Problem: A Generic Trunking (GEC/FEC) 802.3ad-Draft Static type of team may lose some network connectivity if the driver
to a team member is disabled.
Solution: If a team member supports underlying management software (ASF/IPMI/UMP) or Wake-On-LAN, the link may be
maintained on the switch for the adapter despite its driver being disabled. This may result in the switch continuing to pass
traffic to the attached port rather than route the traffic to an active team member port. Disconnecting the disabled adapter
from the switch will allow traffic to resume to the other active team members.
Problem: Large Send Offload (LSO) and Checksum Offload are not working on my team.
Solution: If one of the adapters on a team does not support LSO, LSO does not function for the team. Remove the adapter
that does not support LSO from the team, or replace it with one that does. The same applies to Checksum Offload.
Problem: The advanced properties of a team do not change after changing the advanced properties of an adapter that is a
member of the team.
Solution: If an adapter is included as a member of a team and you change any advanced property, then you must rebuild
the team to ensure that the team’s advanced properties are properly set.
Problem: Errors occur when an RSS-enabled adapter is included as a member of a team on Windows Server 2003 and and
later.
Solution: Disable RSS from all members of the team and rebuild the team.