How to view CCN instance information-Smart Access Gateway(SAG)-阿里云帮助中心

Prerequisites

An existing CCN instance.
The region where the CCN instance resides.

Procedure

Log on to the Smart Access Gateway console.

1. In the left-side navigation pane, click CCN.

In the top navigation bar, select the region where the CCN instance that you want to view resides.
On the CCN page, click the ID of the CCN instance.
On the Basic Information tab, view the basic information about the CCN instance.
The information on the tab is organized into two groups: the fields of the CCN instance, and the fields of the CEN instance that the CCN instance is associated with. For a description of each field, see CCN instance fields and CEN instance fields.

Note

If the CCN instance does not appear on the CCN page, verify that you selected the region where the instance resides and that the instance was created.

CCN instance fields

The following table describes the fields of the CCN instance. You can edit some of these fields on the same tab. For instructions, see Related operations.

Parameter	Description
Instance ID	The ID of the CCN instance.
Instance Name	The name of the CCN instance. You can edit this field.
Created At	The time when the CCN instance was created.
Description	The description of the CCN instance. You can edit this field.
Private CIDR Block	The private CIDR block that the CCN instance advertises to the cloud. You can edit this field. For the quota and the aggregation mechanism, see Private CIDR blocks and route aggregation.
Interconnections Among SAG Instances Associated with the CCN Instance	Indicates whether the Smart Access Gateway (SAG) instances associated with the CCN instance can communicate with each other. After you create a CCN instance, this feature is enabled by default. You can disable it on this tab.

CEN instance fields

The following table describes the fields in the CEN Information section, which reports the CEN instance that the CCN instance is associated with. To associate a CEN instance or to remove an existing association, see Related operations.

Parameter	Description
Instance ID	The ID of the CEN instance.
Status	The status of the CEN instance.
Instance Name	The name of the CEN instance.
Description	The description of the CEN instance.

Private CIDR blocks and route aggregation

Configure a private CIDR block on a CCN instance to aggregate the routes that the CCN instance advertises to the associated CEN instance.

Note

You can configure a maximum of five private CIDR blocks for each CCN instance.

SAG instances advertise their on-premises private CIDR blocks to the CCN instance, which then advertises the CIDR blocks to the CEN instance. This may result in an excessive number of specific CIDR blocks in the CEN instance. After you configure a private CIDR block on the CCN instance, only the private CIDR block of the CCN instance is advertised to the CEN instance, and the specific CIDR blocks that all SAG instances have within the private CIDR block are no longer advertised to the CEN instance.

The following operations are available on the tab where you view the basic information about a CCN instance:

Change the instance name, the description, or the private CIDR block — Click Edit for the field that you want to change.
Disable interconnections among the associated SAG instances — To prevent the SAG instances that are associated with the same CCN instance from communicating with each other, click Disable.
Associate a CEN instance — If no CEN instance is associated with the CCN instance, click Bind CEN Instance. For instructions, see Associate with a CEN instance.
Remove the association with a CEN instance — If a CEN instance is associated with the CCN instance and you want to remove the association, click Unbind CEN Instance.