# 有线网口ETH
1. F305L具备两路千兆RJ45网络接口，网线可采用4芯和8芯网线，通过ethtool 
   (其中一路为核心模块自带千兆网络，另外一路为PCIex1 扩展而来采用的是Realtek RTL8111芯片)
```
nvidia@nvidia-desktop:~$ ethtool eth0
Settings for eth0:
	Supported ports: [ TP ]
	Supported link modes:   10baseT/Half 10baseT/Full
	                        100baseT/Half 100baseT/Full
	                        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
	                        1000baseT/Full
	Advertised pause frame use: Symmetric Receive-only
	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: Symmetric Receive-only
	Link partner advertised auto-negotiation: Yes
	Link partner advertised FEC modes: Not reported
	Speed: 1000Mb/s
	Duplex: Full
	Auto-negotiation: on
	Port: Twisted Pair
	PHYAD: 0
	Transceiver: internal
	MDI-X: Unknown
netlink error: Operation not permitted
        Current message level: 0x00000033 (51)
                               drv probe ifdown ifup
	Link detected: yes

nvidia@nvidia-desktop:~$ ethtool -i eth0
driver: r8168
version: 8.051.02.10m_pll-NAPI
firmware-version: 
expansion-rom-version: 
bus-info: 0001:01:00.0
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: yes
supports-priv-flags: no

nvidia@nvidia-desktop:~$ ethtool --show-eee eth0
EEE settings for eth0:
	EEE status: enabled - inactive
	Tx LPI: disabled
	Supported EEE link modes:  100baseT/Full
	                           1000baseT/Full
	Advertised EEE link modes:  100baseT/Full
	                            1000baseT/Full
	Link partner advertised EEE link modes:  Not reported
nvidia@nvidia-desktop:~$ ethtool --show-eee eth1
EEE settings for eth1:
	EEE status: enabled - inactive
	Tx LPI: disabled
	Supported EEE link modes:  100baseT/Full
	                           1000baseT/Full
	Advertised EEE link modes:  100baseT/Full
	                            1000baseT/Full
	Link partner advertised EEE link modes:  Not reported
```

2. F305L 2个网口支持NTP， 但不支持PTP即IEEE.1588协 议(方竹科技提供其他型号载板可支持PTP协议)

3. 通过如下一些命令进行有限网络的带宽与丢包测试，详情如下：

测试工具：iperf 或 iperf3（Windows or Linux）
```shell
$sudo apt-get install iperf
```

PC 电 脑配置IP: 192.168.1.195

F305L机器配置IP：192.168.1.159

如下测试网络带宽，稳定运行带宽可达940Mbits/sec

PC电脑作为服务端运行：iperf -s -i 2 -w 2m （IP: 192.168.1.2）
![](../img/eth.01.png)

F305L作为设备端运行：iperf -c 192.168.1.2-i 2 -w 2m -t 60
![](../img/eth.02.png)

F305L作为服务端运行：iperf -s -i 2 -w 2m （IP: 192.168.1.159）
![](../img/eth.03.png)

PC电脑作为设备端运行：iperf -c 192.168.1.159-i 2 -w 2m -t 60
![](../img/eth.04.png)


如下可测试网络抖动、丢包率
F305L作为服务端运行：iperf -s -u -i 2
![](../img/eth.05.png)

PC电脑作为设备端运行：iperf -c 192.168.1.159 -i 2 -w 2m -u -b 200m -t 60
![](../img/eth.06.png)