Disabling Ingress Rate Limiting; Qos: Sid/Did Traffic Prioritization; Qos Zones; Virtual Channels Assigned To Qos Priority - HP A7533A - Brocade 4Gb SAN Switch Base Administrator's Manual

Disabling 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. The virtual
channels are allocated as shown in
Table 76

Virtual channels assigned to QoS priority

Priority
High priority
Medium priority
Low priority
NOTE: If there is a single low priority flow to a destination ID (DID) and several medium priority flows to
that same DID, 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.
IMPORTANT:
installed on every switch that is in the path between a given configured device pair.

QoS zones

You assign high or low priority (QoS level) using a QoS zone, a special zone that indicates the priority of
the traffic flow between a given host/target pair. The members of a QoS zone are WWNs of the
host/target pairs. QoS zones can contain only WWN members (WWNN or WWPN). Domain,Index
zoning is not supported.
A QoS zone has a special naming convertion, to differentiate it from a regular zone. The format of the
QoS zone name is as follows:
QOSp_xxxxxx
where p is the priority level (High or Low) and xxxxxx is the user-defined portion of the name. For
example, the following are valid QoS zone names:
QOSH_HighPriorityTraffic
QOSL_LowPriorityZone
resetratelimit command.
--
The slot and port number of the F_Port or FL_Port for which you want to disable
ingress rate limiting.
Table
Number of VCs
VCs assigned
5 10–14
4 2–5
2 8, 9
SID/DID traffic prioritization is a licensed feature. An Adaptive Networking license must be
76.
Fabric OS 6.2 administrator guide 361