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Table of Contents Expand all

play_arrow Overview
- play_arrow Introduction to Class of Service
play_arrow Configuring Class of Service Components
- play_arrow Assigning Service Levels with Classifiers
- play_arrow Controlling Network Access with Traffic Policing
- play_arrow Controlling Output Queues with Forwarding Classes
- play_arrow Altering Outgoing Packets Headers with Rewrite Rules
- play_arrow Defining Output Queue Properties with Schedulers
- play_arrow Removing Delays with Strict-Priority Queues
- play_arrow Controlling Congestion with Drop Profiles
- play_arrow Controlling Congestion with Explicit Congestion Notification
  - Understanding CoS Explicit Congestion Notification
- play_arrow Controlling Congestion with Adaptive Shapers
- play_arrow Limiting Traffic Using Virtual Channels
- play_arrow Enabling Queuing for Tunnel Interfaces
- play_arrow Naming Components with Code-Point Aliases
play_arrow Configuring Class of Service Scheduler Hierarchy
- play_arrow Controlling Traffic by Configuring Scheduler Hierarchy
play_arrow Configuring Class of Service for IPv6
- play_arrow Configuring Class of Service for IPv6 Traffic
play_arrow Configuring Class of Service for I/O Cards
- play_arrow Configuring Class of Service for I/O Cards
play_arrow Configuration Statements and Operational Commands
- Junos CLI Reference Overview

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Default CoS Values and Aliases

date_range 13-Jan-21

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Table 1 shows the default mapping between the standard aliases and the bit values.

Table 1: Standard CoS Aliases and Bit Values
CoS Value Type	Alias	Bit Value
MPLS EXP	be	000
	be1	001
	ef	010
	ef1	011
	af11	100
	af12	101
	nc1/cs6	110
	nc2/cs7	111
DSCP and DSCP IPv6	ef	101110
	af11	001010
	af12	001100
	af13	001110
	af21	010010
	af22	010100
	af23	010110
	af31	011010
	af32	011100
	af33	011110
	af41	100010
	af42	100100
	af43	100110
	be	000000
	cs1	001000
	cs2	010000
	cs3	011000
	cs4	100000
	cs5	101000
	nc1/cs6	110000
	nc2/cs7	111000
IEEE 802.1	be	000
	be1	001
	ef	010
	ef1	011
	af11	100
	af12	101
	nc1/cs6	110
	nc2/cs7	111
IP precedence	be	000
	be1	001
	ef	010
	ef1	011
	af11	100
	af12	101
	nc1/cs6	110
	nc2/cs7	111

arrow_backward PREVIOUS Code-Point Aliases Overview

NEXT arrow_forward Example: Defining Code-Point Aliases for Bits on a Security Device

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