Extreme Networks Summit1 - Manual (Page 126)

8-6 S UMMIT S WITCH I NSTALLATION AND U SER G UIDE
Q UALITY OF S ERVICE (Q O S)
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 REATING AND C ONFIGURING A Q O S P ROFILE
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
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 {minbw } {maxbw }
{priority }
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 SSIGNING A Q O S P ROFILE
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 qosprofile
or
config port qosprofile
You can assign a QoS profile to a MAC entry by using the following command:
create fdbentry vlan [blackhole | |
dynamic] {qosprofile }
Summit.bk : 8QOS.FM Page 6 Thursday, June 18, 1998 9:27 AM