QoS Policies
44 Quality of Service Guide
Network Queue QoS Policies
Network queue policies define the network forwarding class queue characteristics. Network
queue policies are applied on egress on core network ports or channels and on ingress on
MDAs. Network queue policies can be configured to use as many queues as needed. This
means that the number of queues can vary. Not all policies will use eight queues like the
default network queue policy.
The queue characteristics that can be configured on a per-forwarding class basis are:
• Committed Buffer Size (CBS) as a percentage of the buffer pool
Table 6: Default Network QoS Policy DSCP to Forwarding Class Mappings
Ingress DSCP Forwarding Class
dscp-name dscp-value
(binary - decimal)
FC ID Name Label Profile
State
Default 0 Best-Effort be Out
ef 101110 - 46 5 Expedited ef In
nc1 110000 - 48 6 High-1 h1 In
nc2 111000 - 56 7 Network Control nc In
af11 001010 - 10 2 Assured af In
af12 001100 - 12 2 Assured af Out
af13 001110 - 14 2 Assured af Out
af21 010010 - 18 3 Low-1 l1 In
af22 010100 - 20 3 Low-1 l1 Out
af23 010110 - 22 3 Low-1 l1 Out
af31 011010 - 26 3 Low-1 l1 In
af32 011100 - 28 3 Low-1 l1 Out
af33 011110 - 30 3 Low-1 l1 Out
af41 100010 - 34 4 High-2 h2 In
af42 100100 - 36 4 High-2 h2 Out
af43 100110 - 38 4 High-2 h2 Out
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