Use tags to mark and classify VPCs, route tables, and vSwitches - Virtual Private Cloud

Use tags to mark and classify VPCs, create business-oriented resource views, and simplify resource search and aggregation. This simplifies resource search and aggregation.

Tagging examples.

VPC标签管理

Applicability

Quota: You can attach up to 20 tags to a single VPC, vSwitch, or route table. You cannot request a quota increase.
Security: Do not store sensitive information, such as passwords or AccessKey pairs, in tags. Tag information may appear in plaintext on your bills.
Rules:
- Each tag consists of a case-sensitive key-value pair. Tag keys and values cannot start with the aliyun, acs:, http://, or https:// prefix.
- The tag key must be unique for each tag on an instance.
- Tags must be attached to an instance. You cannot create empty tags that are not attached to an instance.
- Tags are region-specific. For example, tags created in the China (Hangzhou) region are not visible in the China (Shanghai) region.
- You can modify the key and value of a tag or remove a tag from an instance. If you delete an instance, all tags attached to it are also deleted. This action does not affect tags attached to other instances.

Individual management: Go to the or the VPC console. Hover your mouse pointer over the Tags column’s icon, and click Edit or Edit in the tooltip. To delete a tag key-value pair, click the icon to its right.
If the Tags column is not displayed, click the icon in the upper-right corner of the elastic IP addresses (EIPs) list and select the Tags list item to display it.
Batch management: Select the EIPs to which you want to add or from which you want to remove tags. In the lower-left corner of the page, choose Configure Tags > Batch Add Tags or Configure Tags > Batch Delete Tags.
Precise search: At the top of the list, click Filter by Tag. Select or enter a key-value pair to filter for EIPs that meet the criteria.