Dell Brocade 6505 Access Gateway Administrator's Guide v7.1.0 - Page 86

QoS: Ingress rate limiting, QoS: SID/DID traffic prioritization

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3 Adaptive Networking on Access Gateway 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. 66 Access Gateway Administrator's Guide 53-1002743-01

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66
Access Gateway Administrator’s Guide
53-1002743-01
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.