Extreme Networks ExtremeWare XOS 11.1, Руководство пользователя

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Quality of Service
ExtremeWare XOS 11.1 Concepts Guide
214
You change the DiffServ code point mapping, using either the QoS profile or the 802.1p value, to any
code point value using the following command:
configure diffserv replacement [{qosprofile} <qosprofile> | priority <value>] code-
point <code_point>
NOTE
Extreme Networks recommends that you use the
qosprofile <qosprofile>
value to configure this parameter.
By doing so, the queue used to transmit a packet determines the DiffServ value replaced in the IP
packet.
To view currently configured DiffServ information, use the following command:
show diffserv [examination | replacement]
DiffServ example for the Aspen 8810 switch.
In this example on the Aspen 8810 switch, we use DiffServ
to signal a class of service throughput and assign any traffic coming from network 10.1.2.x with a
specific DiffServ code point. This allows all other network switches to send and observe the Diffserv
code point instead of repeating the same QoS configuration on every network switch.
To configure the switch, follow these steps:
1
Using ACLs, assign a traffic grouping for traffic from network 10.1.2.x to QP3:
configure access-list qp3sub any
The following is a sample policy file example:
#filename: qp3sub.pol
entry QP3-subnet {
if {
source-address 10.1.2.0/24
} then {
Qosprofile qp3;
}
2
Configure the switch so that other switches can signal calls of service that this switch should observe
by entering the following:
enable diffserv examination ports all
DiffServ example for the BlackDiamond 10K switch.
In this example on the BlackDiamond 10K switch, we
use DiffServ to signal a class of service throughput and assign any traffic coming from network 10.1.2.x
with a specific DiffServ code point. This allows all other network switches to send and observe the
Diffserv code point instead of repeating the same QoS configuration on every network switch.
To configure the switch, follow these steps:
1
Using ACLs, assign a traffic grouping for traffic from network 10.1.2.x to QP3:
configure access-list qp3sub any
The following is a sample policy file example:
#filename: qp3sub.pol
entry QP3-subnet {
if {