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doc-exports/docs/vpc/umn/vpc_vpc_0001.html
fanqinying d2f00b744a VPC UMN 20241224 version
Reviewed-by: Szirovicza Gergő <a94652429@noreply.gitea.eco.tsi-dev.otc-service.com>
Reviewed-by: Sarda, Priya <prsarda@noreply.gitea.eco.tsi-dev.otc-service.com>
Co-authored-by: fanqinying <fanqinying@huawei.com>
Co-committed-by: fanqinying <fanqinying@huawei.com>
2025-09-11 07:29:55 +00:00

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<a name="vpc_vpc_0001"></a><a name="vpc_vpc_0001"></a>
<h1 class="topictitle1">Modifying a Subnet</h1>
<div id="body8662426"><div class="section" id="vpc_vpc_0001__s81d197a61ece470aa5393f50fa131bf6"><h4 class="sectiontitle">Scenarios</h4><p id="vpc_vpc_0001__a7bf2722c6735473a8e78a284b12ae478">This section describes how to modify the subnet name, NTP server address, and DNS server address.</p>
</div>
<div class="section" id="vpc_vpc_0001__sedd7d89d31ad414698b7418d9a9cbd6f"><h4 class="sectiontitle">Procedure</h4><ol id="vpc_vpc_0001__ol1599100493"><li id="vpc_vpc_0001__li46431523115920">Log in to the management console.</li></ol><ol start="2" id="vpc_vpc_0001__o26c0dbc032164bf9a7c7bfdc68dae2c2"><li id="vpc_vpc_0001__li840318282158">Click <span><img id="vpc_vpc_0001__en-us_topic_0118498823_image338921514480" src="en-us_image_0000001818982734.png"></span> in the upper left corner and select the desired region and project.</li><li id="vpc_vpc_0001__li65321958215">Click <span><img id="vpc_vpc_0001__en-us_topic_0118498850_image8750174734412" src="en-us_image_0000001818823766.png"></span> in the upper left corner and choose <strong id="vpc_vpc_0001__b15485164242814"><span id="vpc_vpc_0001__text34851442102815">Network</span><span id="vpc_vpc_0001__text194855428284"></span></strong> &gt; <strong id="vpc_vpc_0001__b448517426286">Virtual Private Cloud</strong>.<p id="vpc_vpc_0001__p1182103318256">The <strong id="vpc_vpc_0001__b46901149122814">Virtual Private Cloud</strong> page is displayed.</p>
</li><li id="vpc_vpc_0001__li179761757517">In the navigation pane on the left, choose <strong id="vpc_vpc_0001__b16550385295">Virtual Private Cloud</strong> &gt; <strong id="vpc_vpc_0001__b2055008182911">Subnets</strong>.<p id="vpc_vpc_0001__p191641754143317">The <strong id="vpc_vpc_0001__b1356051462910">Subnets</strong> page is displayed.</p>
</li><li id="vpc_vpc_0001__li1696335192013">In the subnet list, locate the target subnet and click its name.<p id="vpc_vpc_0001__p057455682116"><a name="vpc_vpc_0001__li1696335192013"></a><a name="li1696335192013"></a>The subnet details page is displayed.</p>
</li><li id="vpc_vpc_0001__li278784491910">On the <strong id="vpc_vpc_0001__b10557145692010">Summary</strong> tab, click <span><img id="vpc_vpc_0001__image018216365361" src="en-us_image_0000001865583301.png"></span> on the right of the parameter to be modified and modify the parameter as prompted.
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="vpc_vpc_0001__t1358556fe53340eb82fa8c754581b79d" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Parameter descriptions</caption><thead align="left"><tr id="vpc_vpc_0001__r9fa5b742a4a3411f8c03962647a54613"><th align="left" class="cellrowborder" valign="top" width="32.22%" id="mcps1.3.2.3.5.3.2.4.1.1"><p id="vpc_vpc_0001__a8dc96d68aa234b9493333915ccbe0f6d">Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="43.1%" id="mcps1.3.2.3.5.3.2.4.1.2"><p id="vpc_vpc_0001__a72187a613d4e4200b43f8f187713722f">Description</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="24.68%" id="mcps1.3.2.3.5.3.2.4.1.3"><p id="vpc_vpc_0001__a75e440e19d704953b2f9c4ec237001dc">Example Value</p>
</th>
</tr>
</thead>
<tbody><tr id="vpc_vpc_0001__r4b7733c08f1b44efa71c70084ae18ba2"><td class="cellrowborder" valign="top" width="32.22%" headers="mcps1.3.2.3.5.3.2.4.1.1 "><p id="vpc_vpc_0001__a8d06ad8e6b3147fa803fbce3f40c8dff">Name</p>
</td>
<td class="cellrowborder" valign="top" width="43.1%" headers="mcps1.3.2.3.5.3.2.4.1.2 "><p id="vpc_vpc_0001__a1122b5a9ae354f90a3c59181681ce331">The subnet name.</p>
<p id="vpc_vpc_0001__p24201817123619">The name can contain a maximum of 64 characters, which may consist of letters, digits, underscores (_), hyphens (-), and periods (.). The name cannot contain spaces.</p>
</td>
<td class="cellrowborder" valign="top" width="24.68%" headers="mcps1.3.2.3.5.3.2.4.1.3 "><p id="vpc_vpc_0001__a02044c412e894f908b0e3ec406fda14c">Subnet</p>
</td>
</tr>
<tr id="vpc_vpc_0001__row08664184148"><td class="cellrowborder" valign="top" width="32.22%" headers="mcps1.3.2.3.5.3.2.4.1.1 "><p id="vpc_vpc_0001__p88661918201415">DNS Server Address</p>
</td>
<td class="cellrowborder" valign="top" width="43.1%" headers="mcps1.3.2.3.5.3.2.4.1.2 "><p id="vpc_vpc_0001__p771614314316">A maximum of five DNS server addresses are supported. Use commas (,) to separate every two addresses.</p>
</td>
<td class="cellrowborder" valign="top" width="24.68%" headers="mcps1.3.2.3.5.3.2.4.1.3 "><p id="vpc_vpc_0001__p42104273396">100.125.x.x</p>
</td>
</tr>
<tr id="vpc_vpc_0001__row653864310412"><td class="cellrowborder" valign="top" width="32.22%" headers="mcps1.3.2.3.5.3.2.4.1.1 "><p id="vpc_vpc_0001__p1984172312520">NTP Server Address</p>
</td>
<td class="cellrowborder" valign="top" width="43.1%" headers="mcps1.3.2.3.5.3.2.4.1.2 "><p id="vpc_vpc_0001__p927533664219">The IP address of the NTP server. This parameter is optional.</p>
<p id="vpc_vpc_0001__p195514432428">You can configure the NTP server IP addresses to be added to the subnet as required. The IP addresses are added in addition to the default NTP server addresses. If you do not specify this parameter, no additional NTP server IP addresses will be added.</p>
<p id="vpc_vpc_0001__p049810523811">A maximum of four unique NTP server IP addresses can be configured. Multiple IP addresses must be separated by a comma (,). If you add or change the NTP server addresses of a subnet, you need to renew the DHCP lease for or restart all the ECSs in the subnet to make the change take effect immediately. If the NTP server addresses have been cleared out, restarting the ECSs will not help. You must renew the DHCP lease for all ECSs to make the change take effect immediately.</p>
</td>
<td class="cellrowborder" valign="top" width="24.68%" headers="mcps1.3.2.3.5.3.2.4.1.3 "><p id="vpc_vpc_0001__p484723192518">192.168.2.1</p>
</td>
</tr>
<tr id="vpc_vpc_0001__row1327142618280"><td class="cellrowborder" valign="top" width="32.22%" headers="mcps1.3.2.3.5.3.2.4.1.1 "><p id="vpc_vpc_0001__p6211102743917">Description</p>
</td>
<td class="cellrowborder" valign="top" width="43.1%" headers="mcps1.3.2.3.5.3.2.4.1.2 "><p id="vpc_vpc_0001__p12111027173911">Supplementary information about the subnet. This parameter is optional.</p>
<p id="vpc_vpc_0001__p1621112712396">The description can contain a maximum of 255 characters and cannot contain angle brackets (&lt; or &gt;).</p>
</td>
<td class="cellrowborder" valign="top" width="24.68%" headers="mcps1.3.2.3.5.3.2.4.1.3 "><p id="vpc_vpc_0001__p3211112753910">-</p>
</td>
</tr>
</tbody>
</table>
</div>
</li><li id="vpc_vpc_0001__li41423476162249">Click <strong id="vpc_vpc_0001__b119514316201">OK</strong>.</li></ol>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="vpc_0004.html">Subnet</a></div>
</div>
</div>