ESXTOP |网络版

  • 2021年2月9日
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ESXTOP中的网络面板具有一些指标，可以使您确定诸如VM上网络丢失或特定NIC上的高落下数据包等问题。以下是如何将ESXTOP用于网络的简单概述：

如何访问：

登录您的ESXI主机并键入ESXTOP

按“ N”仅显示网络视图

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端口ID- 虚拟开关上使用的端口ID。该ID用于使用PKTCAP-UW的网络轨迹。

按'n'按Port-ID列进行排序。

二手- 指示连接到虚拟开关端口的内容。连接的设备可以是虚拟机NIC，VMKERNEL端口（VMK＃），物理NIC（VMNIC＃）或用于健康检查的端口（VMNIC＃的阴影）。

团队奖- 相应设备正在积极使用的物理NIC。此信息有助于网络故障排除。

％drptx- 丢弃的数据包传输，硬件过度劳累。可能的原因：非常高的网络利用率。

％drprx- 收到的数据包，硬件过度劳累。可能的原因：非常高的网络利用率。

ESXTOP可以在ESXI主机的每个虚拟开关上提供MBTX/S和MBRX/S（在MBPS中传输或接收的数据的数量）的物理网络的实时视图。

在解决问题的过程中，识别瓶颈或根盒总是至关重要的，因此掉落数据包的参数变得很重要。

由于多种原因，可以发生掉落的数据包。可能的原因包括

  • 高度的CPU利用率，

  • 在来宾操作系统中安装了不正确的网络驱动程序。

  • VSWITCH中的上行链路容量不足以应付需求。

显示的其他一些指标是

  • MBTX/S - MBPS中传输的数据量

  • MBRX/S - Mbps收到的数据量

  • pkttx/s - 在抽样间隔中每秒传输的数据包的平均数量

  • PKTRX/S - 在抽样间隔中平均每秒收到的数据包数

学习Esxtop的一些重要资源：

  1. http://www.yellow-bricks.com/esxtop/

  2. 解释ESXTOP统计

  3. 使用Cronjob收集Esxtop-https://kb.vmware.com/s/article/1033346

The network panel in ESXTOP has a few metrics that will enable you to determine issues such as loss of network on a VM or high dropped packet on specific nics. Below is simple overview on how to use esxtop for networking:<\/span><\/p>

\u00a0<\/p>

How to access<\/span>:<\/span><\/p>

Log into your ESXi host and type esxtop<\/span><\/p>

Press \u2018n\u2019 to show only the networking view<\/span><\/p>

\u00a0<\/p>

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Port ID<\/span> - The port ID used on the virtual switch. This ID is used for example for network traces with pktcap-uw.<\/span><\/p>

Press <\/span>'N'<\/strong> to sort by PORT-ID column.<\/span><\/p>

USED-BY<\/span> - Indicates what is connected to the virtual switch port. Connected devices can be virtual machine NICs, VMkernel ports (vmk#), physical NICs (vmnic#) or ports used for health checks (Shadow of vmnic#).<\/span><\/p>

TEAM-PNIC <\/span>- The physical NIC that the corresponding device is actively using. This information is helpful for network troubleshooting.<\/span><\/p>

%DRPTX <\/span>- Dropped packets transmitted,\u00a0 hardware overworked. Possible cause : very high network utilization.<\/span><\/p>

%DRPRX<\/span> - Dropped packets received, hardware overworked. Possible cause : very high network utilization.<\/span><\/p>

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ESXTOP can provide live view of the physical network showing us the MbTX\/s and MbRX\/s (Amount of data transmitted or Received in Mbps) on each of the virtual switch of the ESXi host.<\/span><\/p>

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In problem-solving, recognizing the bottleneck or the Root case always becomes critical and hence the parameter of dropped packets becomes important.<\/span><\/p>

Dropped packets can occur for a number of reasons. Possible causes include<\/span><\/p>

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