Dell POWEREDGE M1000E - Manual (Page 86)

66 Access Gateway Administrator’s Guide
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Adaptive Networking on Access Gateway
3
QoS: Ingress rate limiting
Ingress rate limiting restricts the speed of traffic from a particular device to the switch port. On
switches in AG mode, you must configure ingress rate limiting on F_Ports.
For more information and procedures for configuring this feature, refer to “Ingress Limiting” in the
Fabric OS Administrator’s Guide.
QoS: SID/DID traffic prioritization
SID/DID traffic prioritization allows you to categorize the traffic flow between a given host and
target as having a high or low priority; the default is medium. For example, you can assign online
transaction processing (OLTP) to a high priority and the backup traffic to a low priority.
For detailed information on this feature, refer to “QoS: SID/DID traffic prioritization” in the Fabric
OS Administrator’s Guide.
Figure 13 shows the starting point for QoS in various Brocade and non-Brocade configurations.
FIGURE 13 Starting point for QoS
Upgrade and downgrade considerations for Adaptive Networking in AG
mode
Upgrading to Fabric OS v7.1.0 from Fabric OS v6.4.0 is supported. Note the following
considerations when upgrading to Fabric OS v7.1.0 from Fabric OS v6.2.X and earlier and
downgrading from Fabric OS v7.1.0 to Fabric OS v6.2.X and earlier:
• If any of the AG QoS-enabled ports are active and you attempt a firmware downgrade, the
downgrade is prevented. You must disable the QoS-enabled ports before performing a
firmware downgrade.
• Upgrades from earlier versions to Fabric OS v7.1.0 are allowed, but AG QoS-enabled ports do
not become effective until the ports are disabled or enabled so that QoS mode can be
negotiated on the ISLs.