l Low Latency – This profile is optimized to minimize network latency.
NOTES:
l Not all options are available on all adapter/operating system combinations.
l If you have selected the Virtualization Server profile or the Storage + Virtualization profile,
and you uninstall the Hyper-V role, you should select a new profile.
Teaming Considerations
When you create a team with all members of the team supporting Performance Profiles, you will be asked
which profile to use at the time of team creation. The profile will be synchronized across the team. If there is
not a profile that is supported by all team members then the only option will be Use Current Settings. The team
will be created normally. Adding an adapter to an existing team works in much the same way.
If you attempt to team an adapter that supports performance profiles with an adapter that doesn't, the profile
on the supporting adapter will be set to Custom Settings and the team will be created normally.
Priority & VLAN Tagging
Enables the adapter to offload the insertion and removal of priority and VLAN tags for transmit and receive.
Default Priority & VLAN Enabled
Range l Priority & VLAN Disabled
l Priority Enabled
l VLAN Enabled
l Priority & VLAN Enabled
Quality of Service
Quality of Service (QoS) allows the adapter to send and receive IEEE 802.3ac tagged frames. 802.3ac tagged
frames include 802.1p priority-tagged frames and 802.1Q VLAN-tagged frames. In order to implement QoS,
the adapter must be connected to a switch that supports and is configured for QoS. Priority-tagged frames
allow programs that deal with real-time events to make the most efficient use of network bandwidth. High
priority packets are processed before lower priority packets.
Tagging is enabled and disabled in Microsoft* Windows* Server* using the "QoS Packet Tagging" field in the
Advanced tab in Intel® PROSet. For other versions of the Windows operating system, tagging is enabled
using the "Priority/VLAN Tagging" setting on the Advanced tab in Intel® PROSet.
Once QoS is enabled in Intel PROSet, you can specify levels of priority based on IEEE 802.1p/802.1Q frame
tagging.
The supported operating systems, including Microsoft* Windows Server*, have a utility for 802.1p packet
prioritization. For more information, see the Windows system help and Microsoft's knowledge base.
NOTE: The first generation Intel® PRO/1000 Gigabit Server Adapter (PWLA 8490) does not
support QoS frame tagging.
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