H35-211_V2.5 Exam Dumps : HCIP-Access V2.5

The MG reports availability and restarts to the MGC using H.248 ServiceChange with Method=Restart. The Reason code distinguishes the type of restart. In Huawei implementations aligned with H.248 semantics, Reason=[901] corresponds to a warm/warmboard restart scenario rather than a full cold start.

Board restart triggers a warm restart of the voice board/MG, producing ServiceChange { Method=Restart, Reason=901 }.

Reset coldstart performs a cold start, which would use a different reason code (cold start), not 901.

Reboot system generally implies a broader device reboot similar to cold start semantics, not 901.

ONT re-register affects ONU registration and does not cause the MG to announce a ServiceChange restart to the MGC.

In Huawei IPTV troubleshooting, mosaic/flash/jerky or intermittent picture typically results from packet loss or bit errors. Common causes include: optical power near the receiver sensitivity threshold causing FEC/BER spikes (A); loss of I-frames (key frames) either in the encoder/compression stage (B) or due to line transmission loss/jitter (D); and device rate-limit (CAR/policing) misconfiguration that drops packets under burst traffic (C). Any of these can yield unstable display.

The ONT details pane in eSight displays access-port attributes (admin/state, type), Ethernet rate/speed/duplex, and PON optical module telemetry such as temperature and Tx/Rx optical power for condition monitoring and troubleshooting.