ECS4100 Series Web Management Guide-R07

Table Of Contents
Chapter 9
| Class of Service
Layer 3/4 Priority Settings
– 253 –
Figure 147: 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.
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)
Table 13: Default Mapping of CoS/CFI Values to Queue/CFI
CFI
CoS
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)