# ENA 队列数
<a name="ena-queues"></a>

ENA 队列分配给网络接口，其默认静态限制取决于实例类型和大小。在受支持的实例类型上，您可以跨弹性网络接口（ENI）动态分配这些队列。虽然每个实例的队列总数取决于其类型和大小，但可以使用 ENA 队列配置多个 ENI，直到满足 ENI 和实例的最大队列数为止。

灵活分配 ENA 队列有助于优化资源分配，从而尽可能提高 vCPU 利用率。需要高网络性能的工作负载通常需要使用多个 ENA 队列。您可以根据特定的工作负载调整微调队列数，从而微调网络性能和每秒数据包数（PPS）。例如，网络密集型应用程序需要使用的队列数可能会多于 CPU 密集型应用程序。

**Topics**
+ [支持的实例](#supported-instances)
+ [修改队列数](#modify)

## 支持的实例
<a name="supported-instances"></a>

以下实例支持动态分配多个 ENA 队列。

### 通用型
<a name="supported-instances-ena-queues-gp"></a>


<table>
<thead>
  <tr><th>实例类型</th><th>每个接口的默认 ENA 队列</th><th>每个接口的最大 ENA 队列数</th><th>每个实例的最大 ENA 队列数</th></tr>
</thead>
<tbody>
  <tr><td colspan="4">M6i</td></tr>
  <tr><td>m6i.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>m6i.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>m6i.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>m6i.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>m6i.8xlarge</td><td>8</td><td>32</td><td>64</td></tr>
  <tr><td>m6i.12xlarge</td><td>8</td><td>32</td><td>64</td></tr>
  <tr><td>m6i.16xlarge</td><td>8</td><td>32</td><td>120</td></tr>
  <tr><td>m6i.24xlarge</td><td>8</td><td>32</td><td>120</td></tr>
  <tr><td>m6i.32xlarge</td><td>8</td><td>32</td><td>120</td></tr>
  <tr><td colspan="4">M6id</td></tr>
  <tr><td>m6id.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>m6id.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>m6id.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>m6id.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>m6id.8xlarge</td><td>8</td><td>32</td><td>64</td></tr>
  <tr><td>m6id.12xlarge</td><td>8</td><td>32</td><td>64</td></tr>
  <tr><td>m6id.16xlarge</td><td>8</td><td>32</td><td>120</td></tr>
  <tr><td>m6id.24xlarge</td><td>8</td><td>32</td><td>120</td></tr>
  <tr><td>m6id.32xlarge</td><td>8</td><td>32</td><td>120</td></tr>
  <tr><td colspan="4">M6idn</td></tr>
  <tr><td>m6idn.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>m6idn.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>m6idn.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>m6idn.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>m6idn.8xlarge</td><td>16</td><td>32</td><td>128</td></tr>
  <tr><td>m6idn.12xlarge</td><td>16</td><td>32</td><td>128</td></tr>
  <tr><td>m6idn.16xlarge</td><td>16</td><td>32</td><td>240</td></tr>
  <tr><td>m6idn.24xlarge</td><td>32</td><td>32</td><td>480</td></tr>
  <tr><td>m6idn.32xlarge</td><td>32</td><td>32</td><td>512</td></tr>
  <tr><td colspan="4">M6in</td></tr>
  <tr><td>m6in.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>m6in.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>m6in.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>m6in.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>m6in.8xlarge</td><td>16</td><td>32</td><td>128</td></tr>
  <tr><td>m6in.12xlarge</td><td>16</td><td>32</td><td>128</td></tr>
  <tr><td>m6in.16xlarge</td><td>16</td><td>32</td><td>240</td></tr>
  <tr><td>m6in.24xlarge</td><td>32</td><td>32</td><td>480</td></tr>
  <tr><td>m6in.32xlarge</td><td>32</td><td>32</td><td>512</td></tr>
  <tr><td colspan="4">M8a</td></tr>
  <tr><td>m8a.medium</td><td>1</td><td>1</td><td>3</td></tr>
  <tr><td>m8a.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>m8a.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>m8a.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>m8a.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>m8a.8xlarge</td><td>8</td><td>32</td><td>128</td></tr>
  <tr><td>m8a.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>m8a.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>m8a.24xlarge</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td>m8a.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>m8a.metal-24xl</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td>m8a.metal-48xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td colspan="4">M8azn</td></tr>
  <tr><td>m8azn.medium</td><td>1</td><td>1</td><td>3</td></tr>
  <tr><td>m8azn.large</td><td>2</td><td>2</td><td>8</td></tr>
  <tr><td>m8azn.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>m8azn.3xlarge</td><td>4</td><td>16</td><td>48</td></tr>
  <tr><td>m8azn.6xlarge</td><td>8</td><td>32</td><td>96</td></tr>
  <tr><td>m8azn.12xlarge</td><td>8</td><td>64</td><td>192</td></tr>
  <tr><td>m8azn.24xlarge</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td>m8azn.metal-12xl</td><td>8</td><td>64</td><td>192</td></tr>
  <tr><td>m8azn.metal-24xl</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td colspan="4">M8gb</td></tr>
  <tr><td>m8gb.medium</td><td>1</td><td>1</td><td>2</td></tr>
  <tr><td>m8gb.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>m8gb.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>m8gb.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>m8gb.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>m8gb.8xlarge</td><td>8</td><td>32</td><td>128</td></tr>
  <tr><td>m8gb.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>m8gb.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>m8gb.24xlarge</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td>m8gb.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>m8gb.metal-24xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>m8gb.metal-48xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td colspan="4">M8gn</td></tr>
  <tr><td>m8gn.medium</td><td>1</td><td>1</td><td>2</td></tr>
  <tr><td>m8gn.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>m8gn.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>m8gn.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>m8gn.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>m8gn.8xlarge</td><td>8</td><td>32</td><td>128</td></tr>
  <tr><td>m8gn.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>m8gn.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>m8gn.24xlarge</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td>m8gn.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>m8gn.metal-24xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>m8gn.metal-48xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td colspan="4">M8i</td></tr>
  <tr><td>m8i.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>m8i.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>m8i.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>m8i.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>m8i.8xlarge</td><td>8</td><td>32</td><td>128</td></tr>
  <tr><td>m8i.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>m8i.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>m8i.24xlarge</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td>m8i.32xlarge</td><td>16</td><td>128</td><td>512</td></tr>
  <tr><td>m8i.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>m8i.96xlarge</td><td>32</td><td>128</td><td>1536</td></tr>
  <tr><td>m8i.metal-48xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>m8i.metal-96xl</td><td>32</td><td>128</td><td>1536</td></tr>
  <tr><td colspan="4">M8id</td></tr>
  <tr><td>m8id.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>m8id.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>m8id.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>m8id.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>m8id.8xlarge</td><td>8</td><td>32</td><td>128</td></tr>
  <tr><td>m8id.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>m8id.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>m8id.24xlarge</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td>m8id.32xlarge</td><td>16</td><td>128</td><td>512</td></tr>
  <tr><td>m8id.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>m8id.96xlarge</td><td>32</td><td>128</td><td>1536</td></tr>
  <tr><td>m8id.metal-48xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>m8id.metal-96xl</td><td>32</td><td>128</td><td>1536</td></tr>
  <tr><td colspan="4">M8i-flex</td></tr>
  <tr><td>m8i-flex.large</td><td>1</td><td>1</td><td>3</td></tr>
  <tr><td>m8i-flex.xlarge</td><td>2</td><td>2</td><td>8</td></tr>
  <tr><td>m8i-flex.2xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>m8i-flex.4xlarge</td><td>4</td><td>8</td><td>32</td></tr>
  <tr><td>m8i-flex.8xlarge</td><td>4</td><td>16</td><td>64</td></tr>
  <tr><td>m8i-flex.12xlarge</td><td>8</td><td>32</td><td>96</td></tr>
  <tr><td>m8i-flex.16xlarge</td><td>8</td><td>32</td><td>128</td></tr>
  <tr><td colspan="4">M8in</td></tr>
  <tr><td>m8in.large</td><td>2</td><td>2</td><td>8</td></tr>
  <tr><td>m8in.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>m8in.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>m8in.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>m8in.8xlarge</td><td>16</td><td>32</td><td>128</td></tr>
  <tr><td>m8in.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>m8in.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>m8in.24xlarge</td><td>16</td><td>128</td><td>256</td></tr>
  <tr><td>m8in.32xlarge</td><td>32</td><td>128</td><td>512</td></tr>
  <tr><td>m8in.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>m8in.96xlarge</td><td>32</td><td>128</td><td>1536 \*</td></tr>
  <tr><td colspan="4">M8idn</td></tr>
  <tr><td>m8idn.large</td><td>2</td><td>2</td><td>8</td></tr>
  <tr><td>m8idn.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>m8idn.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>m8idn.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>m8idn.8xlarge</td><td>16</td><td>32</td><td>128</td></tr>
  <tr><td>m8idn.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>m8idn.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>m8idn.24xlarge</td><td>16</td><td>128</td><td>256</td></tr>
  <tr><td>m8idn.32xlarge</td><td>32</td><td>128</td><td>512</td></tr>
  <tr><td>m8idn.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>m8idn.96xlarge</td><td>32</td><td>128</td><td>1536 \*</td></tr>
  <tr><td colspan="4">M8ine</td></tr>
  <tr><td>m8ine.large</td><td>2</td><td>2</td><td>8</td></tr>
  <tr><td>m8ine.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>m8ine.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>m8ine.4xlarge</td><td>16</td><td>16</td><td>128</td></tr>
  <tr><td>m8ine.8xlarge</td><td>32</td><td>32</td><td>256</td></tr>
  <tr><td>m8ine.12xlarge</td><td>32</td><td>64</td><td>384</td></tr>
  <tr><td colspan="4">m8iB</td></tr>
  <tr><td>m8ib.large</td><td>2</td><td>2</td><td>8</td></tr>
  <tr><td>m8ib.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>m8ib.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>m8ib.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>m8ib.8xlarge</td><td>16</td><td>32</td><td>128</td></tr>
  <tr><td>m8ib.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>m8ib.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>m8ib.24xlarge</td><td>16</td><td>128</td><td>256</td></tr>
  <tr><td>m8ib.32xlarge</td><td>32</td><td>128</td><td>512</td></tr>
  <tr><td>m8ib.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>m8ib.96xlarge</td><td>32</td><td>128</td><td>1536 \*</td></tr>
  <tr><td colspan="4">M8idb</td></tr>
  <tr><td>m8idb.large</td><td>2</td><td>2</td><td>8</td></tr>
  <tr><td>m8idb.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>m8idb.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>m8idb.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>m8idb.8xlarge</td><td>16</td><td>32</td><td>128</td></tr>
  <tr><td>m8idb.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>m8idb.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>m8idb.24xlarge</td><td>16</td><td>128</td><td>256</td></tr>
  <tr><td>m8idb.32xlarge</td><td>32</td><td>128</td><td>512</td></tr>
  <tr><td>m8idb.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>m8idb.96xlarge</td><td>32</td><td>128</td><td>1536 \*</td></tr>
</tbody>
</table>


**注意**  
\* 这些实例类型配备多个网卡。其他实例类型配备单个网卡。有关更多信息，请参阅 [网卡](using-eni.md#network-cards)。

### 计算优化型
<a name="supported-instances-ena-queues-co"></a>


<table>
<thead>
  <tr><th>实例类型</th><th>每个接口的默认 ENA 队列</th><th>每个接口的最大 ENA 队列数</th><th>每个实例的最大 ENA 队列数</th></tr>
</thead>
<tbody>
  <tr><td colspan="4">C6i</td></tr>
  <tr><td>c6i.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>c6i.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>c6i.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>c6i.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>c6i.8xlarge</td><td>8</td><td>32</td><td>64</td></tr>
  <tr><td>c6i.12xlarge</td><td>8</td><td>32</td><td>64</td></tr>
  <tr><td>c6i.16xlarge</td><td>8</td><td>32</td><td>120</td></tr>
  <tr><td>c6i.24xlarge</td><td>8</td><td>32</td><td>120</td></tr>
  <tr><td>c6i.32xlarge</td><td>8</td><td>32</td><td>120</td></tr>
  <tr><td colspan="4">C6id</td></tr>
  <tr><td>c6id.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>c6id.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>c6id.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>c6id.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>c6id.8xlarge</td><td>8</td><td>32</td><td>64</td></tr>
  <tr><td>c6id.12xlarge</td><td>8</td><td>32</td><td>64</td></tr>
  <tr><td>c6id.16xlarge</td><td>8</td><td>32</td><td>120</td></tr>
  <tr><td>c6id.24xlarge</td><td>8</td><td>32</td><td>120</td></tr>
  <tr><td>c6id.32xlarge</td><td>8</td><td>32</td><td>120</td></tr>
  <tr><td colspan="4">C6in</td></tr>
  <tr><td>c6in.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>c6in.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>c6in.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>c6in.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>c6in.8xlarge</td><td>16</td><td>32</td><td>128</td></tr>
  <tr><td>c6in.12xlarge</td><td>16</td><td>32</td><td>128</td></tr>
  <tr><td>c6in.16xlarge</td><td>16</td><td>32</td><td>240</td></tr>
  <tr><td>c6in.24xlarge</td><td>32</td><td>32</td><td>480</td></tr>
  <tr><td>c6in.32xlarge</td><td>32</td><td>32</td><td>512</td></tr>
  <tr><td colspan="4">C8a</td></tr>
  <tr><td>c8a.medium</td><td>1</td><td>1</td><td>3</td></tr>
  <tr><td>c8a.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>c8a.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>c8a.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>c8a.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>c8a.8xlarge</td><td>8</td><td>32</td><td>128</td></tr>
  <tr><td>c8a.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>c8a.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>c8a.24xlarge</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td>c8a.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>c8a.metal-24xl</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td>c8a.metal-48xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td colspan="4">C8gb</td></tr>
  <tr><td>c8gb.medium</td><td>1</td><td>1</td><td>2</td></tr>
  <tr><td>c8gb.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>c8gb.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>c8gb.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>c8gb.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>c8gb.8xlarge</td><td>8</td><td>32</td><td>128</td></tr>
  <tr><td>c8gb.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>c8gb.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>c8gb.24xlarge</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td>c8gb.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>c8gb.metal-24xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>c8gb.metal-48xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td colspan="4">C8gn</td></tr>
  <tr><td>c8gn.medium</td><td>1</td><td>1</td><td>2</td></tr>
  <tr><td>c8gn.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>c8gn.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>c8gn.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>c8gn.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>c8gn.8xlarge</td><td>8</td><td>32</td><td>128</td></tr>
  <tr><td>c8gn.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>c8gn.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>c8gn.24xlarge</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td>c8gn.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>c8gn.metal-24xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>c8gn.metal-48xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td colspan="4">c8i</td></tr>
  <tr><td>c8i.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>c8i.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>c8i.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>c8i.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>c8i.8xlarge</td><td>8</td><td>32</td><td>128</td></tr>
  <tr><td>c8i.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>c8i.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>c8i.24xlarge</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td>c8i.32xlarge</td><td>16</td><td>128</td><td>512</td></tr>
  <tr><td>c8i.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>c8i.96xlarge</td><td>32</td><td>128</td><td>1536</td></tr>
  <tr><td>c8i.metal-48xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>c8i.metal-96xl</td><td>32</td><td>128</td><td>1536</td></tr>
  <tr><td colspan="4">C8id</td></tr>
  <tr><td>c8id.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>c8id.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>c8id.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>c8id.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>c8id.8xlarge</td><td>8</td><td>32</td><td>128</td></tr>
  <tr><td>c8id.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>c8id.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>c8id.24xlarge</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td>c8id.32xlarge</td><td>16</td><td>128</td><td>512</td></tr>
  <tr><td>c8id.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>c8id.96xlarge</td><td>32</td><td>128</td><td>1536</td></tr>
  <tr><td>c8id.metal-48xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>c8id.metal-96xl</td><td>32</td><td>128</td><td>1536</td></tr>
  <tr><td colspan="4">C8i-flex</td></tr>
  <tr><td>c8i-flex.large</td><td>1</td><td>1</td><td>3</td></tr>
  <tr><td>c8i-flex.xlarge</td><td>2</td><td>2</td><td>8</td></tr>
  <tr><td>c8i-flex.2xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>c8i-flex.4xlarge</td><td>4</td><td>8</td><td>32</td></tr>
  <tr><td>c8i-flex.8xlarge</td><td>4</td><td>16</td><td>64</td></tr>
  <tr><td>c8i-flex.12xlarge</td><td>8</td><td>32</td><td>96</td></tr>
  <tr><td>c8i-flex.16xlarge</td><td>8</td><td>32</td><td>128</td></tr>
  <tr><td colspan="4">C8in</td></tr>
  <tr><td>c8in.large</td><td>2</td><td>2</td><td>8</td></tr>
  <tr><td>c8in.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>c8in.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>c8in.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>c8in.8xlarge</td><td>16</td><td>32</td><td>128</td></tr>
  <tr><td>c8in.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>c8in.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>c8in.24xlarge</td><td>16</td><td>128</td><td>256</td></tr>
  <tr><td>c8in.32xlarge</td><td>32</td><td>128</td><td>512</td></tr>
  <tr><td>c8in.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>c8in.96xlarge</td><td>32</td><td>128</td><td>1536 \*</td></tr>
  <tr><td>c8in.metal-48xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>c8in.metal-96xl</td><td>32</td><td>128</td><td>1536 \*</td></tr>
  <tr><td colspan="4">C8ine</td></tr>
  <tr><td>c8ine.large</td><td>2</td><td>2</td><td>8</td></tr>
  <tr><td>c8ine.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>c8ine.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>c8ine.4xlarge</td><td>16</td><td>16</td><td>128</td></tr>
  <tr><td>c8ine.8xlarge</td><td>32</td><td>32</td><td>256</td></tr>
  <tr><td>c8ine.12xlarge</td><td>32</td><td>64</td><td>384</td></tr>
  <tr><td colspan="4">C8ib</td></tr>
  <tr><td>c8ib.large</td><td>2</td><td>2</td><td>8</td></tr>
  <tr><td>c8ib.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>c8ib.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>c8ib.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>c8ib.8xlarge</td><td>16</td><td>32</td><td>128</td></tr>
  <tr><td>c8ib.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>c8ib.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>c8ib.24xlarge</td><td>16</td><td>128</td><td>256</td></tr>
  <tr><td>c8ib.32xlarge</td><td>32</td><td>128</td><td>512</td></tr>
  <tr><td>c8ib.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>c8ib.96xlarge</td><td>32</td><td>128</td><td>1536 \*</td></tr>
  <tr><td>c8ib.metal-48xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>c8ib.metal-96xl</td><td>32</td><td>128</td><td>1536 \*</td></tr>
</tbody>
</table>


**注意**  
\* 这些实例类型配备多个网卡。其他实例类型配备单个网卡。有关更多信息，请参阅 [网卡](using-eni.md#network-cards)。

### 内存优化型
<a name="supported-instances-ena-queues-mo"></a>


<table>
<thead>
  <tr><th>实例类型</th><th>每个接口的默认 ENA 队列</th><th>每个接口的最大 ENA 队列数</th><th>每个实例的最大 ENA 队列数</th></tr>
</thead>
<tbody>
  <tr><td colspan="4">R6i</td></tr>
  <tr><td>r6i.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>r6i.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>r6i.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>r6i.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>r6i.8xlarge</td><td>8</td><td>32</td><td>64</td></tr>
  <tr><td>r6i.12xlarge</td><td>8</td><td>32</td><td>64</td></tr>
  <tr><td>r6i.16xlarge</td><td>8</td><td>32</td><td>120</td></tr>
  <tr><td>r6i.24xlarge</td><td>8</td><td>32</td><td>120</td></tr>
  <tr><td>r6i.32xlarge</td><td>8</td><td>32</td><td>120</td></tr>
  <tr><td colspan="4">R6id</td></tr>
  <tr><td>r6id.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>r6id.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>r6id.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>r6id.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>r6id.8xlarge</td><td>8</td><td>32</td><td>64</td></tr>
  <tr><td>r6id.12xlarge</td><td>8</td><td>32</td><td>64</td></tr>
  <tr><td>r6id.16xlarge</td><td>8</td><td>32</td><td>120</td></tr>
  <tr><td>r6id.24xlarge</td><td>8</td><td>32</td><td>120</td></tr>
  <tr><td>r6id.32xlarge</td><td>8</td><td>32</td><td>120</td></tr>
  <tr><td colspan="4">R6idn</td></tr>
  <tr><td>r6idn.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>r6idn.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>r6idn.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>r6idn.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>r6idn.8xlarge</td><td>16</td><td>32</td><td>128</td></tr>
  <tr><td>r6idn.12xlarge</td><td>16</td><td>32</td><td>128</td></tr>
  <tr><td>r6idn.16xlarge</td><td>16</td><td>32</td><td>240</td></tr>
  <tr><td>r6idn.24xlarge</td><td>32</td><td>32</td><td>480</td></tr>
  <tr><td>r6idn.32xlarge</td><td>32</td><td>32</td><td>512</td></tr>
  <tr><td colspan="4">R6in</td></tr>
  <tr><td>r6in.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>r6in.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>r6in.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>r6in.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>r6in.8xlarge</td><td>16</td><td>32</td><td>128</td></tr>
  <tr><td>r6in.12xlarge</td><td>16</td><td>32</td><td>128</td></tr>
  <tr><td>r6in.16xlarge</td><td>16</td><td>32</td><td>240</td></tr>
  <tr><td>r6in.24xlarge</td><td>32</td><td>32</td><td>480</td></tr>
  <tr><td>r6in.32xlarge</td><td>32</td><td>32</td><td>512</td></tr>
  <tr><td colspan="4">R8a</td></tr>
  <tr><td>r8a.medium</td><td>1</td><td>1</td><td>3</td></tr>
  <tr><td>r8a.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>r8a.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>r8a.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>r8a.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>r8a.8xlarge</td><td>8</td><td>32</td><td>128</td></tr>
  <tr><td>r8a.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>r8a.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>r8a.24xlarge</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td>r8a.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>r8a.metal-24xl</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td>r8a.metal-48xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td colspan="4">R8gb</td></tr>
  <tr><td>r8gb.medium</td><td>1</td><td>1</td><td>2</td></tr>
  <tr><td>r8gb.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>r8gb.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>r8gb.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>r8gb.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>r8gb.8xlarge</td><td>8</td><td>32</td><td>128</td></tr>
  <tr><td>r8gb.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>r8gb.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>r8gb.24xlarge</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td>r8gb.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>r8gb.metal-24xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>r8gb.metal-48xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td colspan="4">R8gn</td></tr>
  <tr><td>r8gn.medium</td><td>1</td><td>1</td><td>2</td></tr>
  <tr><td>r8gn.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>r8gn.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>r8gn.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>r8gn.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>r8gn.8xlarge</td><td>8</td><td>32</td><td>128</td></tr>
  <tr><td>r8gn.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>r8gn.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>r8gn.24xlarge</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td>r8gn.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>r8gn.metal-24xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>r8gn.metal-48xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td colspan="4">R8i</td></tr>
  <tr><td>r8i.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>r8i.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>r8i.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>r8i.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>r8i.8xlarge</td><td>8</td><td>32</td><td>128</td></tr>
  <tr><td>r8i.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>r8i.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>r8i.24xlarge</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td>r8i.32xlarge</td><td>16</td><td>128</td><td>512</td></tr>
  <tr><td>r8i.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>r8i.96xlarge</td><td>32</td><td>128</td><td>1536</td></tr>
  <tr><td>r8i.metal-48xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>r8i.metal-96xl</td><td>32</td><td>128</td><td>1536</td></tr>
  <tr><td colspan="4">R8id</td></tr>
  <tr><td>r8id.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>r8id.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>r8id.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>r8id.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>r8id.8xlarge</td><td>8</td><td>32</td><td>128</td></tr>
  <tr><td>r8id.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>r8id.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>r8id.24xlarge</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td>r8id.32xlarge</td><td>16</td><td>128</td><td>512</td></tr>
  <tr><td>r8id.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>r8id.96xlarge</td><td>32</td><td>128</td><td>1536</td></tr>
  <tr><td>r8id.metal-48xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>r8id.metal-96xl</td><td>32</td><td>128</td><td>1536</td></tr>
  <tr><td colspan="4">r8i-flex</td></tr>
  <tr><td>r8i-flex.large</td><td>1</td><td>1</td><td>3</td></tr>
  <tr><td>r8i-flex.xlarge</td><td>2</td><td>2</td><td>8</td></tr>
  <tr><td>r8i-flex.2xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>r8i-flex.4xlarge</td><td>4</td><td>8</td><td>32</td></tr>
  <tr><td>r8i-flex.8xlarge</td><td>4</td><td>16</td><td>64</td></tr>
  <tr><td>r8i-flex.12xlarge</td><td>8</td><td>32</td><td>96</td></tr>
  <tr><td>r8i-flex.16xlarge</td><td>8</td><td>32</td><td>128</td></tr>
  <tr><td colspan="4">R8in</td></tr>
  <tr><td>r8in.large</td><td>2</td><td>2</td><td>8</td></tr>
  <tr><td>r8in.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>r8in.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>r8in.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>r8in.8xlarge</td><td>16</td><td>32</td><td>128</td></tr>
  <tr><td>r8in.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>r8in.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>r8in.24xlarge</td><td>16</td><td>128</td><td>256</td></tr>
  <tr><td>r8in.32xlarge</td><td>32</td><td>128</td><td>512</td></tr>
  <tr><td>r8in.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>r8in.96xlarge</td><td>32</td><td>128</td><td>1536 \*</td></tr>
  <tr><td colspan="4">R8idn</td></tr>
  <tr><td>r8idn.large</td><td>2</td><td>2</td><td>8</td></tr>
  <tr><td>r8idn.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>r8idn.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>r8idn.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>r8idn.8xlarge</td><td>16</td><td>32</td><td>128</td></tr>
  <tr><td>r8idn.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>r8idn.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>r8idn.24xlarge</td><td>16</td><td>128</td><td>256</td></tr>
  <tr><td>r8idn.32xlarge</td><td>32</td><td>128</td><td>512</td></tr>
  <tr><td>r8idn.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>r8idn.96xlarge</td><td>32</td><td>128</td><td>1536 \*</td></tr>
  <tr><td colspan="4">R8ib</td></tr>
  <tr><td>r8ib.large</td><td>2</td><td>2</td><td>8</td></tr>
  <tr><td>r8ib.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>r8ib.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>r8ib.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>r8ib.8xlarge</td><td>16</td><td>32</td><td>128</td></tr>
  <tr><td>r8ib.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>r8ib.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>r8ib.24xlarge</td><td>16</td><td>128</td><td>256</td></tr>
  <tr><td>r8ib.32xlarge</td><td>32</td><td>128</td><td>512</td></tr>
  <tr><td>r8ib.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>r8ib.96xlarge</td><td>32</td><td>128</td><td>1536 \*</td></tr>
  <tr><td colspan="4">R8idb</td></tr>
  <tr><td>r8idb.large</td><td>2</td><td>2</td><td>8</td></tr>
  <tr><td>r8idb.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>r8idb.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>r8idb.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>r8idb.8xlarge</td><td>16</td><td>32</td><td>128</td></tr>
  <tr><td>r8idb.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>r8idb.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>r8idb.24xlarge</td><td>16</td><td>128</td><td>256</td></tr>
  <tr><td>r8idb.32xlarge</td><td>32</td><td>128</td><td>512</td></tr>
  <tr><td>r8idb.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>r8idb.96xlarge</td><td>32</td><td>128</td><td>1536 \*</td></tr>
  <tr><td colspan="4">X8aedz</td></tr>
  <tr><td>x8aedz.large</td><td>2</td><td>2</td><td>8</td></tr>
  <tr><td>x8aedz.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>x8aedz.3xlarge</td><td>4</td><td>16</td><td>48</td></tr>
  <tr><td>x8aedz.6xlarge</td><td>8</td><td>32</td><td>96</td></tr>
  <tr><td>x8aedz.12xlarge</td><td>8</td><td>64</td><td>192</td></tr>
  <tr><td>x8aedz.24xlarge</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td>x8aedz.metal-12xl</td><td>8</td><td>64</td><td>192</td></tr>
  <tr><td>x8aedz.metal-24xl</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td colspan="4">X8i</td></tr>
  <tr><td>x8i.large</td><td>2</td><td>2</td><td>6</td></tr>
  <tr><td>x8i.xlarge</td><td>4</td><td>4</td><td>16</td></tr>
  <tr><td>x8i.2xlarge</td><td>8</td><td>8</td><td>32</td></tr>
  <tr><td>x8i.4xlarge</td><td>8</td><td>16</td><td>64</td></tr>
  <tr><td>x8i.8xlarge</td><td>8</td><td>32</td><td>128</td></tr>
  <tr><td>x8i.12xlarge</td><td>16</td><td>64</td><td>192</td></tr>
  <tr><td>x8i.16xlarge</td><td>16</td><td>64</td><td>256</td></tr>
  <tr><td>x8i.24xlarge</td><td>16</td><td>128</td><td>384</td></tr>
  <tr><td>x8i.32xlarge</td><td>16</td><td>128</td><td>512</td></tr>
  <tr><td>x8i.48xlarge</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>x8i.64xlarge</td><td>32</td><td>128</td><td>1024</td></tr>
  <tr><td>x8i.96xlarge</td><td>32</td><td>128</td><td>1536</td></tr>
  <tr><td>x8i.metal-48xl</td><td>32</td><td>128</td><td>768</td></tr>
  <tr><td>x8i.metal-96xl</td><td>32</td><td>128</td><td>1536</td></tr>
</tbody>
</table>


**注意**  
\* 这些实例类型配备多个网卡。其他实例类型配备单个网卡。有关更多信息，请参阅 [网卡](using-eni.md#network-cards)。

## 修改队列数
<a name="modify"></a>

您可以使用 AWS 管理控制台、AWS CLI 或 PowerShell 修改 ENA 队列数。在 AWS 管理控制台中，ENA 队列配置位于每个**网络接口**的设置下。

**注意**  
必须停止实例后才能修改 ENA 队列数。
ENA 队列的值必须是 2 的乘方，例如 1、2、4、8、16、32 等。
分配给任何单个 ENI 的队列数不能超过实例上可用的 vCPU 数。

在修改队列数之前，请使用以下命令检查您当前的队列数。

------
#### [ AWS CLI ]

```
aws ec2 describe-instances --instance-id {{i-1234567890abcdef0}}
```

------
#### [ PowerShell ]

```
(Get-EC2Instance -InstanceId i-{{1234567890abcdef0}}).Instances.NetworkInterfaces |
  Select-Object NetworkInterfaceId,
    @{N='DeviceIndex';E={$_.Attachment.DeviceIndex}},
    @{N='AttachmentId';E={$_.Attachment.AttachmentId}},
    @{N='EnaQueueCount';E={$_.Attachment.EnaQueueCount}}
```

------

### 将网络接口连接至 ENA 队列
<a name="modify-attach"></a>

以下示例在一个 ENI 上配置了 16 个 ENA 队列。

------
#### [ AWS CLI ]

**要将网络接口连接至 ENA 队列**  
使用 [attach-network-interface](https://docs.aws.amazon.com/cli/latest/reference/ec2/attach-network-interface.html) 命令。

```
aws ec2 attach-network-interface \
  --network-interface-id eni-{{abcdef01234567890}} \
  --instance-id {{i-1234567890abcdef0}} \
  --device-index 1 \
  --ena-queue-count 16
```

------
#### [ PowerShell ]

**要将网络接口连接至 ENA 队列**  
使用 [Add-EC2NetworkInterface](https://docs.aws.amazon.com/powershell/latest/reference/items/Add-EC2NetworkInterface.html) cmdlet。

```
Add-EC2NetworkInterface `
  -NetworkInterfaceId eni-{{abcdef01234567890}} `
  -InstanceId {{i-1234567890abcdef0}} `
  -DeviceIndex 1 `
  -EnaQueueCount 16
```

------

### 启动带 ENA 队列的实例
<a name="modify-run"></a>

以下示例有 3 个 ENI，每个均配置了 16 个 ENA 队列。

------
#### [ AWS CLI ]

**要启动带 ENA 队列的实例**  
可以使用 [run-instances](https://docs.aws.amazon.com/cli/latest/reference/ec2/run-instances.html) 命令。

```
aws ec2 run-instances \
  --image-id ami-{{1234567890abcdef0}} \
  --instance-type c8i.4xlarge \
  --network-interfaces \
    "[{\"DeviceIndex\":0,\"SubnetId\":\"subnet-{{abcdef01234567890}}\",\"EnaQueueCount\":16},
      {\"DeviceIndex\":1,\"SubnetId\":\"subnet-{{abcdef01234567890}}\",\"EnaQueueCount\":16},
      {\"DeviceIndex\":2,\"SubnetId\":\"subnet-{{abcdef01234567890}}\",\"EnaQueueCount\":16}]"
```

------
#### [ PowerShell ]

**要启动带 ENA 队列的实例**  
使用 [New-EC2Instance](https://docs.aws.amazon.com/powershell/latest/reference/items/New-EC2Instance.html) cmdlet。

```
New-EC2Instance `
  -ImageId ami-{{1234567890abcdef0}} `
  -InstanceType c8i.4xlarge `
  -NetworkInterface @(
    @{DeviceIndex=0; SubnetId="subnet-{{abcdef01234567890}}"; EnaQueueCount=16},
    @{DeviceIndex=1; SubnetId="subnet-{{abcdef01234567890}}"; EnaQueueCount=16},
    @{DeviceIndex=2; SubnetId="subnet-{{abcdef01234567890}}"; EnaQueueCount=16}
  )
```

------

### 修改现有网络接口上的 ENA 队列
<a name="modify-eni-attribute"></a>

以下示例在一个 ENI 上配置了 16 个 ENA 队列。

------
#### [ AWS CLI ]

**要修改网络接口上的 ENA 队列**  
使用 [modify-network-interface-attribute](https://docs.aws.amazon.com/cli/latest/reference/ec2/modify-network-interface-attribute.html) 命令。

```
aws ec2 modify-network-interface-attribute \
  --network-interface-id eni-{{1234567890abcdef0}} \
  --attachment AttachmentId=eni-attach-{{1234567890abcdef0}},EnaQueueCount=16
```

------
#### [ PowerShell ]

**要修改网络接口上的 ENA 队列**  
使用 [Edit-EC2NetworkInterfaceAttribute](https://docs.aws.amazon.com/powershell/latest/reference/items/Edit-EC2NetworkInterfaceAttribute.html) cmdlet。

```
Edit-EC2NetworkInterfaceAttribute `
  -NetworkInterfaceId eni-{{1234567890abcdef0}} `
  -Attachment_AttachmentId eni-attach-{{1234567890abcdef0}} `
  -Attachment_EnaQueueCount 16
```

------

以下示例将 ENA 数重置为默认值。

------
#### [ AWS CLI ]

```
aws ec2 modify-network-interface-attribute \
  --network-interface-id eni-{{1234567890abcdef0}} \
  --attachment AttachmentId=eni-attach-{{1234567890abcdef0}},DefaultEnaQueueCount=true
```

------
#### [ PowerShell ]

```
Edit-EC2NetworkInterfaceAttribute `
  -NetworkInterfaceId eni-{{1234567890abcdef0}} `
  -Attachment_AttachmentId eni-attach-{{1234567890abcdef0}} `
  -Attachment_DefaultEnaQueueCount $true
```

------