Allied Telesis AT-S62 - Manual (Page 313)

AT-S62 Management Software Menus Interface User’s Guide
Section II: Advanced Operations 313
Configuring CoS
As explained in “Class of Service Overview” on page 308, a tagged packet
received on a port is placed it into one of four priority queues on the egress
port according to the switch’s mapping of 802.1p priority levels to egress
priority queues. The default mappings are shown in Table 8 on page 309.
You can override the mappings at the port level by assigning the packets a
temporary priority level. Note that this assignment is made when a packet
is received on the ingress port and before the frame is forwarded to the
egress port. Consequently, you need to configure this feature on the
ingress port.
For example, you can configure a switch port so that all ingress frames are
assigned a temporary priority level of 5, regardless of the actual priority
levels that might be in the frames themselves, as found in tagged frames.
A temporary priority level applies only while a frame traverses the
switching matrix. Tagged frames, which can contain a priority level, leave
the switch with the same priority level they had when they entered the
switch.
To configure CoS for a port, perform the following procedure:
1. From the Main Menu, type 7 to select Security and Services. The
Security and Services menu is shown in Figure 103.
Figure 103. Security and Services Menu
Allied Telesyn Ethernet Switch AT-8524M - AT-S62
Production Switch
User: Manager 11:20:02 02-Jan-2006
Security and Services
1 - Classifier Configuration
2 - Port Access Control (802.1X)
3 - Denial of Service (DoS)
4 - Access Control Lists (ACL)
5 - Class of Service (CoS)
6 - Quality of Service (QoS)
7 - Keys/Certificates Configuration
8 - Secure Shell (SSH)
9 - Secure Socket Layer (SSL)
R - Return to Previous Menu
Enter your selection?