This document describes how you can modify VLAN attachments for Partner Interconnect.
The following table lists properties associated with VLAN attachments and describes how to modify the properties.
|Property||How to modify|
|Capacity||Work with your service provider as described in the Modify capacity section in this document.|
|Description and MTU||
See the Modify the description and MTU section in this document.
Modifications are immediate and in rare cases can cause traffic disruption. If traffic is disrupted, the disruption lasts less than a minute.
|Whether a VLAN attachment is enabled or disabled||To disable or re-enable a VLAN attachment, see Disable VLAN attachments.|
BGP IP addresses (Cloud Router IP address, on-premises router IP address)
You can't modify these properties for existing attachments. Instead, you must recreate the VLAN attachment.
To create VLAN attachments for Partner Interconnect, see Create VLAN attachments.
|MD5 authentication||If you have a Layer 2 connection, follow the steps in Add authentication to an existing session. If you have a Layer 3 connection, contact your service provider for instructions.|
The peer ASN is not a property of the VLAN attachment—it is part of the BGP configuration of the Cloud Router. If you have a Layer 2 connection and you want to modify the peer ASN, update the Cloud Router's BGP session for the VLAN attachment.
For more information, see the following resources:
- Viewing BGP session configuration
glcoud compute routers update-bgp-peercommand reference
routers.updateAPI method reference
For an existing VLAN attachment, Google Cloud supports increasing or decreasing the attachment's capacity as your capacity demands rise or fall. Because capacity changes can affect your service provider's network, you must work with them to change your attachment's capacity. Changes in capacity, in rare cases, can cause traffic disruption. If traffic is disrupted, the disruption lasts less than a minute.
After the service provider has updated your attachment, your service provider works with Google to update the attachment's capacity in your Google Cloud project. At that time, Google updates the charges for the attachment based on the new capacity.
For a list of all the service providers, see Supported service providers.
Modify the description and MTU
This section provides instructions for updating the description and MTU of a VLAN attachment. In rare cases, changing the attributes of a VLAN attachment can cause traffic disruption. If traffic is disrupted, the disruption lasts less than a minute.
In the Google Cloud console, go to the Cloud Interconnect VLAN attachments tab.
Select the VLAN attachment to modify.
On the attachment's detail page, click Edit.
Modify the Description of your VLAN attachment, and then click Save.
Optional: Update the maximum transmission unit (MTU) of the attachment. To make use of the 1500-byte MTU, the VPC network using the attachment must have an MTU set to
1500. In addition, the on-premises VMs and routers must have an MTU set to
1500. If your network has the default MTU of
1460, leave the field at
interconnectAttachment by specifying the name of the existing
VLAN attachment and the attributes to modify:
gcloud compute interconnects attachments partner update NAME \ --region=REGION \ --description=DESCRIPTION \ --mtu=MTU
Replace the following:
NAME: the name of the existing VLAN attachment
REGION: the region of the attachment
DESCRIPTION: a description of the attachment
MTU: the MTU of the attachment
For more information, see the
gcloud compute interconnects attachments partner update reference.
To create an Interconnect connection, see the Partner Interconnect provisioning overview.
To learn more about Cloud Interconnect options, see the Cloud Interconnect overview.
To help you solve common issues that you might encounter when using Partner Interconnect, see Troubleshooting.