Huawei NetEngine80E Configuration Manual - Reliability page 599

HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
Procedure
l
Issue 02 (2011-09-10)
802.1p-priority-based two-way frame delay measurement can be configured for the VLL
for accurate proactive frame delay tests.
NOTE
The configuration of 802.1p priority mapping for AC-side packets allows flexible frame delay
measurement on PWs.
l Priority mapping based on simple traffic classification can map a traffic priority on one type of
network to that on another type of network. This enables traffic to be transmitted on another type
of network based on the previous priority or the priority configured by users. After receiving
packets, a PE maps external priorities to internal priorities and re-marks DiffServ CoS values
and colors. Before sending packets, the PE maps the internal priorities to external priorities.
l One-way frame delay measurement on a VLL can be configured based on simple traffic
classification. Priority mappings are set on PEs to change priorities in packets or re-classify the
packets. This allows flexible frame delay measurement.
Figure 9-11 Networking diagram for priority-based frame loss measurement on a VLL
CE1
User
Network
Enable on-demand two-way frame delay measurement.
NOTE
Do as follows on the device that initiates two-way frame delay measurement on a PW:
– 1. Run:
system-view
The system view is displayed.
2. Run: cfm md md-name The MD view is displayed.
3. Run:
ma ma-name
The MA view is displayed.
4. Run:
delay-measure two-way
mep-id mep-id } interval { 1000 | 10000 } count count-value
On-demand two-way frame delay measurement is enabled on a PW.
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P
PE1
Y.1731
mep mep-id mep-id { mac mac-address | remote-mep
9 Y.1731 Configuration
CE2
PE2
User
Network
MEP
Priority 1
Priority 2
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