Table 96: Default Mapping Of Cos/Cfi To Internal Phb/Drop Precedence - Motorola EX-3524 Cli Reference Manual

Layer 2 gigabit ethernet poe/poe+ switch
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D
S
EFAULT
ETTING

Table 96: Default Mapping of CoS/CFI to Internal PHB/Drop Precedence

CFI
CoS
0
1
2
3
4
5
6
7
Command Mode
Global Configuration
Command Usage
The default mapping of CoS to PHB values shown in
recommended settings in IEEE 802.1p for mapping CoS values to output
queues.
Enter a value pair for the internal per-hop behavior and drop precedence,
followed by the keyword "from" and then up to eight CoS/CFI paired values
separated by spaces.
If a packet arrives with a 802.1Q header but it is not an IP packet, then the CoS/
CFI-to-PHB/Drop Precedence mapping table is used to generate priority and
drop precedence values for internal processing. Note that priority tags in the
original packet are not modified by this command.
The internal DSCP consists of three bits for per-hop behavior (PHB) which
determines the queue to which a packet is sent; and two bits for drop
precedence (namely color) which is used by Random Early Detection (RED) to
control traffic congestion.
Example
Console(config)#qos map cos-dscp 0 0 from 0 1
Console(config)#
Chapter 18
0
(0,0)
(0,0)
(1,0)
(1,0)
(2,0)
(2,0)
(3,0)
(3,0)
(4,0)
(4,0)
(5,0)
(5,0)
(6,0)
(6,0)
(7,0)
(7,0)
– 435 –
| Class of Service Commands
Priority Commands (Layer 3 and 4)
1
Table 96
is based on the

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