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| Configuring the Switch
C
4
HAPTER
Quality of Service
Q
S
UALITY OF
ERVICE
W
I
EB
NTERFACE
To configure MAC OUI numbers for VoIP equipment:
Click Configuration, Voice VLAN, OUI.
1.
Click "Add new entry."
2.
Enter a MAC address that specifies the OUI for VoIP devices in the
3.
network, and enter a description for the devices.
Click Save.
4.
Figure 68: Configuring an OUI Telephony List
All switches or routers that access the Internet rely on class information to
provide the same forwarding treatment to packets in the same class. Class
information can be assigned by end hosts, or switches or routers along the
path. Priority can then be assigned based on a general policy, or a detailed
examination of the packet. However, note that detailed examination of
packets should take place close to the network edge so that core switches
and routers are not overloaded.
Switches and routers along the path can use class information to prioritize
the resources allocated to different traffic classes. The manner in which an
individual device handles traffic is called per-hop behavior. All devices
along a path should be configured in a consistent manner to construct a
consistent end-to-end Quality of Service (QoS) solution.
This section describes how to specify which data packets have greater
precedence when traffic is buffered in the switch due to congestion. This
switch provides four priority queues for each port. Data packets in a port's
high-priority queue will be transmitted before those in the lower-priority
queues. You can set the default priority for each interface, the queuing
mode, and queue weights.
– 172 –
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