LevelOne GEL-5261, User Manual

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Chapter 9
| Class of Service
Layer 3/4 Priority Settings
Figure 126: Setting the Trust Mode
Mapping
CoS Priorities to Per-
hop Behavior
Use the Traffic > Priority > CoS to Queue page to map CoS/CFI values in incoming
packets to per-hop behavior for priority processing.
Command Usage
◆ The default mapping of CoS/CFI to Queue/CFI values is shown below.
Table 13: Default Mapping of CoS/CFI Values to Queue/CFI
CoS
CFI 0 1
0 (2,0) (2,0)
1 (0,0) (0,0)
2 (1,0) (1,0)
3 (3,0) (3,0)
4 (4,0) (4,0)
5 (5,0) (5,0)
6 (6,0) (6,0)
7 (7,0) (7,0)
◆ Enter the per-hop behavior for CoS/CFI paired values.
◆ If a packet arrives with a 802.1Q header but it is not an IP packet, then the
CoS/CFI-to-Queue mapping table is used to generate priority for processing.
Note that priority tags in the original packet are not modified by this command.
Parameters
These parameters are displayed:
◆
Port – Specifies a port.
◆
CoS – CoS value in ingress packets. (Range: 0-7)
◆
CFI – Canonical Format Indicator. Set to this parameter to “0” to indicate that
the MAC address information carried in the frame is in canonical format.
(Range: 0-1)
◆ Queue – Per-hop behavior, or the priority used for this router hop. (Range: 0-7)