Prioritization; Creating And Configuring A Qos Profile; Assigning A Qos Profile - Extreme Networks Summit1 Installation And User Manual

Extreme network summit switch installation and user guide
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Q
S
(Q
S)
UALITY OF
ERVICE
O
P
RIORITIZATION
Prioritization is used when there is bandwidth contention for transmission on a port.
The four levels of priority are used as a mechanism for resolving the contention
between traffic groups. If traffic groups have the same priority, a "round-robin"
algorithm is applied.
C
C
REATING AND
Up to 28 custom QoS profiles can be created on the Summit in egress mode. To create a
QoS profile, use the following command:
create qosprofile <name>
A new QoS profile is created with the following default values:
• Minimum bandwidth — 0%
• Maximum bandwidth — 100%
• Priority — low
Each of the default values is configurable by using the following command in egress
mode:
config qosprofile <qosname> {minbw <percent>} {maxbw <percent>}
{priority <level>}
In ingress mode, use the same command syntax to modify the bandwidth parameters of
the default QoS profiles, however the priority level specified is ignored.
A
Q
S P
SSIGNING A
O
Once you have established one or more traffic classifications and configured one or
more QoS profiles, you can match them together using one of the following commands:
config vlan <name> qosprofile <qosname>
or
config port <portlist> qosprofile <qosname>
You can assign a QoS profile to a MAC entry by using the following command:
create fdbentry <mac_address> vlan <name> [blackhole | <portlist> |
dynamic] {qosprofile <qosname>}
8-6
Q
ONFIGURING A
O
ROFILE
S P
ROFILE
S
S
I
UMMIT
WITCH
NSTALLATION AND
U
G
SER
UIDE

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