在远程配置 D-Link DCS-930L 摄像头(固件版本 1.08_B4),连接有时候不稳定。以下是一些调试数据:
1. ping :
$ ping 43.135.44.40
PING 43.135.44.40 (43.135.44.40): 56 data bytes
64 bytes from 43.135.44.40: icmp_seq=0 ttl=50 time=45.6 ms
64 bytes from 43.135.44.40: icmp_seq=1 ttl=50 time=47.2 ms
64 bytes from 43.135.44.40: icmp_seq=2 ttl=50 time=46.8 ms
2. 摄像头登录日志:
[INFO] Connecting to 43.135.44.40:80
[ERROR] Connection timeout after 30 seconds
[INFO] Retrying...
延迟基本正常,但连接超时问题时有发生。有哪些地方可能出问题呢?