Alcatel-Lucent OmniSwitch AOS Release 7 Manual page 505

Multicast VOQ
Unicast and multicast traffic are both queued and funneled separately through the switch. The QSet frame-
work described in previous sections applies only to unicast traffic. Multicast traffic is queued based on the
destination multicast group ID for the packets. Pre-set queues and profiles associated with the MGID
handle the multicast traffic. The multicast queue framework is not user-configurable, in that there are no
user-configurable profiles.
QSet Profiles
There are four pre-defined QSet profiles available (QSP 1 - 4). Each profile defines the following band-
width management attributes that are applied to VOQ flows destined for the port or LAG QSet instance
associated with the profile:
•
The percentage of bandwidth allocated for and shared by all of the QSet queues. This value is taken
from the port to which the QSet profile is applied (either port speed or the user-defined bandwidth for
the port is used).
•
The name and ID and administrative status of the WRED profile (WRP) that is applied to all of the
QSet queues. By default, WRP 1 is associated with each QSet profile.
•
The administrative status of statistics collection for the QSet queues.
•
The queue specific (QSpec) priority used for output scheduling on each of the 8 QSet queues.
The following four pre-defined QSet profiles are supported:
QSP Default WRP
QSP 1
QSP 2
QSP 3
QSP 4
To determine how flows are mapped to VOQs based on ingress priority markings, see
Tables" on page 21-16. This section contains CoS priority mapping tables for each QSet profile.
Configuring QSet Profiles
The default profile (QSP 1) is automatically assigned to each QSet instance when a port goes active or a
port joins a LAG. It is only necessary to configure or replace this profile if the default profile attributes are
not sufficient.
Consider the following when configuring a QSet profile:
•
QSP 1, 2, 3, and 4 cannot be deleted from the switch configuration.
•
Creating new profiles is not supported; only the four QSPs provided are available for selection at this
time.
•
Configurable parameters for the profiles include the WRED profile (WRP) association and the admin-
istrative status for the WRP and statistics collection for the QSet instance. By default, WRED and
statistics collection are enabled for the profile.
OmniSwitch AOS Release 7 Network Configuration Guide
Bandwidth
WRP 1 100%
WRP 1 100%
WRP 1 100%
WRP 1 100%
Queue Specific Priority
8 SP
1 EF, 7 SP
1 EF, 7 WFQ
1 EF, 2 SP, 4 AF, 1 BE
March 2011
"Queue Mapping
page 21-13