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AM5729: 使用 phy DP83867IRRGZ ,无法ping通网线直连的设备

Part Number:AM5729

我们公司使用的 am5729,公司自己制作的板子,使用 phy DP83867IRRGZ ,用网线直连同样的am5729板,无法Ping通,但是板子用网线连上交换机,能ping通

问题:1. 是什么原因导致网线直连两台设备无法ping通呢

           2. 有什么解决方法吗

Nancy Wang:

请贴出您使用的SDK,并且详细描述一下两块板子直连是如何ping的。

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Chandler Liu:

SDK版本为 5.03,系统为 premmpt rt linux,两块板子的ip为同一网段,在板子进入Linux系统后,使用ping命令

,

Nancy Wang:

请贴出以下指令的结果以及ping命令的信息,我需要咨询相关工程师再给您回复。

ethtool eth0/eth1

ethtool -S eth0/eth1

,

Chandler Liu:

# ethtool eth0Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Supported pause frame use: Symmetric Receive-only Supports auto-negotiation: Yes Supported FEC modes: Not reported Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full [10380.787720] cpsw 48484000.ethernet eth0: Link is Up – 1Gbps/Full – flow control off 1000baseT/Half 1000baseT/Full Advertised pause frame use: [10380.802954] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes readyNo Advertised auto-negotiation: Yes Advertised FEC modes: Not reported Link partner advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Link partner advertised pause frame use: No Link partner advertised auto-negotiation: Yes Link partner advertised FEC modes: Not reported Speed: 1000Mb/s Duplex: Full Port: MII PHYAD: 0 Transceiver: internal Auto-negotiation: on Supports Wake-on: d Wake-on: d Current message level: 0x00000000 (0) Link detected: no

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Chandler Liu:

板子网口为千兆网口,直连一台百兆网口的设备ping不通,直连另一个千兆网口是能ping通的

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