拆个海康威视所谓监控专用交换机 空荡荡的什么也没有

digittjau

为什么老死机呢？我们厂里一个节点装上新的8口的这个海康威视的交换机几乎半天都撑不住，频繁死机。量过交流电，直流电，几乎没波动。换上老的fast八口的交换机能稳定两个月。

digittjau

IP178G 8 Port 10/100M Ethernet Integrated Switch
(85nm /Extreme Low Power, PWMT® and AFT®)

General Description :
IP178G is fabricated with advanced CMOS (85nm/Low Power) technology and only requires a 3.3V single power supply for saving BOM cost. This feature makes IP178G consumes very low power, such as the full load operation (100Mbps_FDX x8) and embedded LDO, overall power consumption only takes 0.87w.                              
IP178G also supports Power Management Tool (PWMT®) for IEEE 802.3az, APS, WOL+ and PWD for Green Power. While two link devices have no IEEE 802.3az capability, IP178G use WOL+ to change link from 100Mbps to 10Mbps for saving power.
The PWD of IP178G is designed for power down switch immediately by pushing a button, user don’t plug out the power adapter. Push the button again, it will power on immediately.
Except Low Power and Rich Power Saving method, IP178G supports AFT® for saving Customer Testing Cost. By using a push bottom and cables, IP178G will Auto test completely by itself.
Feature :
8 port Embedded 10/100 PHY Switch Controller
Support 8 100baseTX or 6 100base TX + 2 FX
Support Auto MDI-MDIX function
Power Management Tool (PWMT®)
- APS, auto-power saving while link-off
- IEEE 802.3az protocol based power saving & 10Mbps Te for 10Mbps                                          - WOL+®, light traffic power saving
- PWD, force-off power saving
Support Auto Factory Test (AFT®)
Single Power 3.3V supply
Built in Vcore Regulator
Two Priority queues per port
Support 802.1p & DiffServ based QoS
QoS
- Port base
- 802.1p
- IP DiffServ IPV4/IPV6
- TCP/UDP port number
- Pins configure ports priority (VIP port)
Support max forwarding packet length 1552/1536 bytes option
Support port mirror function
Support 1k MAC address
Support broadcast storm protection
Support  port trunking (LACP)
Support 16 VLAN (IEEE Std 802.1q)
- Port-based/Tagged-based VLAN
- Support insert, remove tag
Built-in 50 ohm resistors for simplifying BOM
85nm Process
Package and operation temperature
IP178G: 68 Pin QFN, 0~70℃
Application :
8 port 10/100 SOHO Switch
6TX+2FX Switch or 7TX + 1FX Switch

拷贝自老论坛
bbs.mydigit.cn/read.php?tid=1817535