Class-Based Unconditional Packet Marking Feature And Benefits - Cisco ASR 9000 Series Configuration Manual

Configuring Modular QoS Service Packet Classification
• 16 Q-mode—16 L4 flows per L3 class. Up to 16000 L3 classes in TM.
This table provides the different service profiles supported in different modes:
Mode
8Q
16Q
8Q
16Q
8Q
16Q
The L3, L4 service profiles in 16 Q-mode are similar to that of the 8 Q-mode, with just an increase in the
number of normal priority queues.
Restrictions
The support for 16 queues has these restrictions:
• Supports only the enhanced Ethernet line cards.
• When 16Q-mode policy is applied on all interfaces, the number of interface scale will be 4K interface.

Class-based Unconditional Packet Marking Feature and Benefits

The Class-based, Unconditional Packet Marking feature provides users with a means for efficient packet
marking by which the users can differentiate packets based on the designated markings.
The Class-based, Unconditional Packet Marking feature allows users to perform these tasks:
• Mark packets by setting the IP precedence bits or the IP differentiated services code point (DSCP) in
• Mark Multiprotocol Label Switching (MPLS) packets by setting the EXP bits within the imposed or
• Mark packets by setting the Layer 2 class-of-service (CoS) value.
• Mark packets by setting inner and outer CoS tags for an IEEE 802.1Q tunneling (QinQ) configuration.
• Mark packets by setting the value of the qos-group argument.
• Mark packets by setting the value of the discard-class argument.
the IP ToS byte.
topmost label.
Cisco ASR 9000 Series Aggregation Services Router Modular Quality of Service Configuration Guide, Release 6.1.x
Class-based Unconditional Packet Marking Feature and Benefits
Service Profile
1 priority-1 queue, 1 priority-2 queue, 6 normal priority
queue
1 priority-1 queue, 1 priority-2 queue, 14 normal priority
queue
1 priority-1 queue, 2 priority-2 queues, 5 normal priority
queue (BNG Only)
1 priority-1 queue, 2 priority-2 queues, 13 normal priority
queue (BNG Only)
1 priority-1 queue, 1 priority-2 queue, 1 priority- 3 queue, 5
normal priority queue
1 priority-1 queue, 1 priority-2 queue, 1 priority- 3 queue,
13 normal priority queue
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