Technical data

84 Web Tools Administrator’s Guide
53-1002934-02
Configuring FC ports
6
Long distance mode
Port long distance configurations can be performed in the Switch Admin Extended Fabric tab if the
link is used over long distances. To configure the long-distance settings, the EGM license must be
enabled on the switch. Otherwise, access to this feature is denied and an error message displays.
For information about long-distance mode settings, refer to Chapter 14, “Administering Extended
Fabrics”.
The EGM license is required only for 8 Gbps platforms, such as the following:
• Encryption Switch
• 300, 5300, and 5100 switches
• Brocade VA-40FC
• Brocade 7800
For non-8 Gbps platforms, all functionality is available without EGM license.
Ingress rate limit
From Fabric OS v7.2.0, the ingress rate limit can be configured without an Adaptive Networking (AN)
license.
Ingress rate limiting restricts the speed of traffic from a particular device to the switch port,
allowing latency-sensitive applications to share the storage resources alongside
throughput-intensive applications. Ingress rate limiting delays the return of BB credits to the
external device. By limiting the throughput on the ingress side of a port, existing congestion can be
removed or avoided.
The implication is as follows:
• Ingress rate limiting is not supported if the F_Port is in AOQ.
• Ingress rate limiting is not supported if the F_Port is part of Trunk.
• Ingress rate limiting is not supported if the F_Port is not QoS-enabled, but it connects to a
QoS-enabled AG switch port.
Ingress rate limiting is applicable only to F_Ports and FL_Ports and is available only on the following
platforms:
• Brocade DCX
• Brocade DCX-4S
• Brocade DCX 8510
• Brocade Encryption Switch
• Brocade 300
• Brocade 5100
• Brocade 5300
• Brocade 5410
• Brocade 5424
• Brocade 5450
• Brocade 5460
• Brocade 5470