Extreme Networks ExtremeWare Enterprise Manager Installation And User Manual page 131

• Client/Server Policy maps a QoS treatment to traffic going between a server and
specific clients. You specify the both sets of endpoints (clients and server) between
which the traffic will travel. The server endpoint can include an application
(translated to an L4 port) or it can be a host (indicated by the application choice
"ANY," translated to an IP address only). The Policy System determines the switches
that should be affected by this policy. As shown in Figure 8-2 below, the policy you
specify is implemented as IP QoS in both directions between the client and server.
Although not shown in the diagram, you can specify multiple servers as well as
multiple clients.
Figure 8-2: Client/Server Policy
For a client/server policy, as with an application policy, you can specify only one
application (e.g. HTTP, FTP, Baan) as the endpoint, but multiple servers (not shown
in the diagram). In addition, you can select multiple client endpoints, and the Policy
System will generate IP QoS rules that it will apply to traffic bi-directionally along
the entire route between server and client.
Note that the potential combination of traffic flows can get very large if you specify
a large number of clients and servers in a client/server policy. This is discussed in
more detail in the section "Client/Server Policy Definition Tab" on page 8-27.
• Source Port Policy maps a QoS treatment to traffic from a specific port on an
Extreme switch. You specify the specific ingress ports from which the traffic will
originate. As shown in Figure 8-3 below, a source port policy is uni-directional, and
implements Source Port QoS on the flow from the specified source port.
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XTREME ARE NTERPRISE ANAGER
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NSTALLATION AND SER UIDE
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VERVIEW OF HE OLICY YSTEM
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