Qos: Sid/Did Traffic Prioritization - HP A7533A - Brocade 4Gb SAN Switch Base Administrator's Manual

To limit the traffic, you set the maximum speed at which the traffic can flow through a particular F_Port or
FL_Port. For example, if you set the rate limit at 4 Gbps, then traffic from a particular device is limited to a
maximum of 4 Gbps.
Ingress rate limiting enforcement is needed only if the port can run at a speed higher than the rate limit. For
example, if the rate limit is 4 Gbps and the port is only a 2 Gbps port, then ingress rate limiting is not
enforced.
Ingress rate limiting is applicable only to F_Ports and FL_Ports and is available only on the DC Director
model. The ingress rate limiting configuration is persistent across reboots.
To limit traffic from a particular device:
1. Connect to the switch and log in as admin.
2. Enter the portcfgqos
portcfgqos --setratelimit [slot/]port ratelimit
where:
slot/port
ratelimit
For example, to set the rate limit on slot 3, port 9 to 4000 Mbps, enter the following command:
portcfgqos --setratelimit 3/9 4000
To disable ingress rate limiting
1. Connect to the switch and log in as admin.
2. Enter the portcfgqos
portcfgqos --resetratelimit [slot/]port
where:
slot/port
For example, to disable ingress rate limiting on slot 3, port 9, enter the following command:
portcfgqos --resetratelimit 3/9

QoS: SID/DID traffic prioritization

SID/DID traffic prioritization is a licensed feature that allows you to categorize the traffic flow between a
given host and target as having a high or low priority. For example, you could assign online transaction
processing (OLTP) to high priority and backup traffic to low priority.
All flows without QoS prioritization are considered medium priority.
High, medium, and low priority flows are allocated to different virtual channels (VCs). High priority flows
receive more VCs than medium priority flows, which receive more VCs than low priority flows.
NOTE: If there is a single low priority flow to a destination ID (DID) and several medium priority flows to
that same DID, then it is possible that the medium priority flows would have less bandwidth because they
have to share the medium priority VCs, whereas the low priority flow would have a separate VC.
SID/DID traffic prioritization is a licensed feature. An Adaptive Networking license must be installed on
every switch that is in the path between a given configured device pair.
setratelimit command.
--
The slot and port number of the F_Port or FL_Port on which you want to limit
traffic. The slot number is required for a 4/256 SAN Director or DC
Director.
The maximum speed, in megabits per second (Mbps), for traffic coming
from the device. The valid values are: 200, 400, 600, 800, 1000, 1500,
2000, 2500, 3000, 3500, 4000, 5000, 6000, 7000, and 8000.
resetratelimit command.
--
The slot and port number of the F_Port or FL_Port for which you want to
disable ingress rate limiting. The slot number is required for a 4/256 SAN
Director or DC Director.
Fabric OS 6.1.x administrator guide 291