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Chapter 7 Route
Table 24 Command Summary: Policy Route (continued)
COMMAND
show policy-route begin policy_number end
policy_number
show policy-route override-direct-route
show policy-route rule_count
show policy-route underlayer-rules
show bwm activation
show bwm-usage < [policy-route policy_number] |
[interface interface_name]
7.2.1 Assured Forwarding (AF) PHB for DiffServ
Assured Forwarding (AF) behavior is defined in RFC 2597. The AF behavior group defines
four AF classes. Inside each class, packets are given a high, medium or low drop precedence.
The drop precedence determines the probability that routers in the network will drop packets
when congestion occurs. If congestion occurs between classes, the traffic in the higher class
(smaller numbered class) is generally given priority. Combining the classes and drop
precedence produces the following twelve DSCP encodings from AF11 through AF43. The
decimal equivalent is listed in brackets.
Table 25 Assured Forwarding (AF) Behavior Group
Low Drop Precedence
Medium Drop Precedence
High Drop Precedence
68
DESCRIPTION
Displays the specified range of policy route
settings.
Displays whether or not the NXC forwards
packets that match a policy route according to
the policy route instead of sending the packets to
a directly connected network.
Displays the number of policy routes that have
been configured on the NXC.
Displays all policy route rule details for advanced
debugging.
Displays whether or not the global setting for
bandwidth management on the NXC is enabled.
Displays the specified policy route or interface's
bandwidth allotment, current bandwidth usage,
and bandwidth usage statistics.
CLASS 1
CLASS 2
AF11 (10)
AF21 (18)
AF12 (12)
AF22 (20)
AF13 (14)
AF23 (22)
CLASS 3
CLASS 4
AF31 (26)
AF41 (34)
AF32 (28)
AF42 (36)
AF33 (30)
AF43 (38)
NXC CLI Reference Guide
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