Quotas and limits

The following sections describe quotas and limits for Cloud Interconnect. To change a quota, see requesting additional quota. Limits cannot generally be increased unless specifically noted.

Quotas

This table highlights important quotas for each project. For other quotas, see the Cloud Console Quotas page.

Item Quota Notes
Interconnect connections Quota

The number of Interconnect connections per project.

Interconnect connections are not associated with regions or VPC networks.

Interconnect connection bandwidth per project Calculated automatically

The total Interconnect connection bandwidth for the project, calculated by adding up the bandwidths of each connection it contains.

The bandwidth of each connection is calculated by multiplying the capacities of its circuits (either 10 Gbps or 100 Gbps) by the number of circuits in the connection.

For example, an Interconnect connection consisting of four 10-Gbps circuits has 40 Gbps of bandwidth. If you have two such connections in your project, this quota is automatically set to 80 Gbps.

VLAN attachments Quota

The number of VLAN attachments that you can configure in each region for your project.

Regardless of this quota, you are also limited to a total of 16 VLAN attachments per Interconnect connection. If you require additional attachments per connection, see the Maximum number of VLAN attachments that can be associated with a single Interconnect connection in the Limits table.

VLAN attachments total Mbps Quota

The maximum bandwidth capacity of all VLAN attachments in a given region for a given project, irrespective of their relationship with Interconnect connections.

In addition to this quota, the limits described in the Limits table apply.

Cloud Routers Quota

The number of Cloud Routers that you can create within your project, in any network and region.

Networks also have a limit on the number of Cloud Routers in any given region.

For more details, see Cloud Router quotas and limits.

Limits

The following limits apply to Interconnect connections and VLAN attachments. Unless otherwise stated, these limits cannot be increased.

Item Limit Notes
Maximum number of physical circuits per Interconnect connection 8 x 10 Gbps (80-Gbps) circuits or
2 x 100 Gbps (200-Gbps) circuits

An Interconnect connection is a logical connection to Google, made up of one or more physical circuits. You can request one of the following circuit choices:

  • Up to 2 x 100 Gbps (200-Gbps) circuits.
  • 10-Gbps increments up to eight circuits (80 Gbps) to increase the maximum total bandwidth of all VLAN attachments that use the Interconnect connection to 80 Gbps.

    To determine the bandwidth, multiply the number of physical circuits by the bandwidth per circuit (10 Gbps).

Maximum number of VLAN attachments that can be associated with a single Interconnect connection 16 Each Interconnect connection supports no more than 16 VLAN attachments, even if you would otherwise have quota to create more VLAN attachments.
Maximum bandwidth per VLAN attachment Capacities from 50 Mbps to 50 Gbps

The maximum possible bandwidth per VLAN attachment depends on the bandwidth capacity that you order. For capacities, see the Pricing page. For Partner Interconnect, not all service providers offer all capacities.

The throughput of individual flows on a VLAN attachment is limited. To achieve maximum throughput, you must use multiple five-tuple flows (for example: 10+) with packet sizes within the MTU of the VLAN attachment.

Maximum total packet rate per VLAN attachment

This rate varies according to the attachment's capacity:

  • The maximum rate for a 50-Gbps VLAN attachment is 6.25 M packets per second (pps).
  • The maximum rate for a 10-Gbps VLAN attachment is 1.25 M packets per second (pps).
The maximum packet rate for the entire VLAN attachment.
Maximum bandwidth per traffic flow on a VLAN attachment

3 Gbps

Even if you configure your attachment higher than 3 Gbps, your per-flow capacity is capped at 3 Gbps.

A traffic flow is identified by either a five-tuple hash for non-fragmented packets or a three-tuple hash for fragmented packets:

  • A five-tuple hash consists of a protocol, source IP address, source port, destination IP address, and destination port.
  • A three-tuple hash consists of a protocol, source IP address, and destination IP address.

The following cases describe where the maximum bandwidth is lower than 3 Gbps:

  • If the bandwidth capacity of your VLAN attachment is less than 3 Gbps, the bandwidth per traffic flow is limited by the bandwidth of the VLAN attachment.
  • If you reach the maximum packet rate per traffic flow (as described in the next section).
Maximum packet rate per traffic flow on a VLAN attachment 250,000 packets per second The maximum rate of packets per traffic flow, identified by a five-tuple hash for non-fragmented packets and by a three-tuple hash for fragmented packets (as described in the previous section).
Maximum transmission unit (MTU) 1440 bytes The size of the largest IP address packet that can be transmitted over a VLAN attachment.
Maximum lifetime of (Partner Interconnect) VLAN attachment pairing key 28 days

The maximum amount of time that can pass between generating a (Partner Interconnect) VLAN attachment pairing key and successful attachment provisioning by the service provider.

If a pairing key is no longer valid, you delete and create a new pairing key for the Partner Interconnect service provider to use.

Cloud Router limits

Because Dedicated Interconnect and Partner Interconnect require Cloud Router, all the Cloud Router quotas and limits apply.

There are limits on the maximum number of learned custom dynamic routes and on the number of advertised routes. For more information, see the Cloud Router Quotas and limits page.

Managing quotas

Cloud Interconnect enforces quotas on resource usage for a variety of reasons. For example, quotas protect the community of Google Cloud users by preventing unforeseen spikes in usage. Quotas also help users who are exploring Google Cloud with the free tier to stay within their trial.

All projects start with the same quotas, which you can change by requesting additional quota. Some quotas may increase automatically based on your use of a product.

Permissions

To view quotas or request quota increases, Identity and Access Management (IAM) members need one of the following roles.

Task Required role
Check quotas for a project Project Owner or Editor or Quota Viewer
Modify quotas, request additional quota Project Owner or Editor, Quota Administrator, or custom role with the serviceusage.quotas.update permission

Checking your quota

Console

  1. In the Cloud Console, go to the Quotas page.

    Go to the Quotas page

  2. To search for the quota that you want to update, use the Filter table. If you don't know the name of the quota, use the links on this page instead.

gcloud

Using the gcloud command-line tool, run the following command to check your quotas. Replace PROJECT_ID with your own project ID.

      gcloud compute project-info describe --project PROJECT_ID

To check your used quota in a region, run the following command:

      gcloud compute regions describe example-region

Errors when exceeding your quota

If you exceed a quota with a gcloud command, gcloud outputs a quota exceeded error message and returns with the exit code 1.

If you exceed a quota with an API request, Google Cloud returns the following HTTP status code: HTTP 413 Request Entity Too Large.

Requesting additional quota

Request additional quota from the Quotas page in the Cloud Console. Quota requests take 24 to 48 hours to process.

Console

  1. In the Cloud Console, go to the Quotas page.

    Go to the Quotas page

  2. On the Quotas page, select the quotas that you want to change.
  3. At the top of the page, click Edit quotas.
  4. Fill out your name, email, and phone number, and then click Next.
  5. Fill in your quota request, and then click Done.
  6. Submit your request.

Resource availability

Each quota represents a maximum number for a particular type of resource that you can create, provided that resource is available. It's important to note that quotas do not guarantee resource availability. Even if you have available quota, you won't be able to create a new resource if it is not available.

For example, you might have sufficient quota to create a new regional, external IP address in the us-central1 region, but that would not be possible if there were no available external IP addresses in that region. Zonal resource availability can also affect your ability to create a new resource.

Situations where resources are unavailable in an entire region are rare; however, resources within a zone can be depleted from time to time, typically without impact to the service level agreement (SLA) for the type of resource. For more information, review the relevant SLA for the resource.