Quotas and Limits

The following sections describe quotas and limits for Cloud Interconnect. To change a quota, simply request additional quota using the Cloud Console. Limits cannot generally be increased unless specifically noted.


This table highlights important quotas for each project. See the quotas page for other quotas.

Item Quota Notes
Interconnects Quota This is the number of interconnects per project. Interconnects are not associated with regions or VPC networks.
Interconnect bandwidth per project Calculated automatically This quota represents the total interconnect bandwidth for the project, calculated by adding up the bandwidths of each interconnect it contains.

The bandwidth of each interconnect is calculated by multiplying the capacities of its circuits (either 10 Gbps or 100Gbps) by the number of circuits in the interconnect. For example, an interconnect consisting of four 10 Gbps circuits has 40 Gbps of bandwidth. If you have two such interconnects in your project, this quota is automatically set to 80 Gbps.
Interconnect attachments Quota This quota represents the number of interconnect attachments (VLANs) that you can configure in each region for your project. Regardless of this quota, you are also limited to a total of 16 interconnect attachments per interconnect. If you require additional attachments per interconnect, refer to Maximum number of interconnect attachments (VLANs) that can be associated with a single interconnect in limits, below.
Interconnect attachments total Mbps Quota This quota represents the maximum bandwidth capacity of all interconnect attachments in a given region for a given project, irrespective of their relationship with interconnects. In addition to this quota, the limits described in the next table apply.
Cloud Routers Quotas This quota represents the number of Cloud Routers 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. See Cloud Router quotas and limits for more details.


The following limits apply to interconnects and interconnect attachments. Unless otherwise stated, these limits cannot be increased.

Item Limit Notes
Maximum number of physical circuits per interconnect 8 x 10 Gbps (80 Gbps) circuits or
2 x 100 Gbps (200 Gbps) circuits
An interconnect 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 interconnect attachments that use the interconnect to 80 Gbps.
    To determine the bandwidth, multiply the number of physical circuits by the bandwidth per circuit (10 Gbps).
Maximum number of interconnect attachments (VLANs) that can be associated with a single interconnect 16 Each interconnect supports no more than 16 interconnect attachments (VLANs), even if you would otherwise have quota to create more interconnect attachments.
Maximum bandwidth per interconnect attachment Capacities from 50 Mbps to 50 Gbps The maximum possible bandwidth per interconnect attachment depends on the bandwidth capacity you order. See the Pricing page for capacities. For Partner Interconnect, not all partners offer all capacities.

The throughput of individual flows on an interconnect attachment is limited, as described below. To achieve maximum throughput, you must use multiple five-tuple flows (for example: 10+) with packet sizes within the MTU of the interconnect attachment.
Maximum total packet rate per interconnect attachment (VLAN) This rate varies according to the attachment's capacity:
  • The maximum rate for a 50 Gbps interconnect attachment (VLAN) is 6.25M packets per second (pps).
  • The maximum rate for a 10 Gbps interconnect attachment (VLAN) is 1.25M packets per second (pps)
This represents the maximum packet rate for the entire interconnect attachment (VLAN).
Maximum bandwidth per traffic flow on an interconnect attachment 3 Gbps. Even if you configure your attachment above 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 interconnect attachment itself is less than 3 Gbps, then the bandwidth per traffic flow is limited by the bandwidth of the interconnect attachment.
  • If you reach the maximum packet rate per traffic flow, described next.
Maximum packet rate per traffic flow on an interconnect attachment 250,000 packets per second This number represents the maximum rate of packets per traffic flow, as 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 1440 bytes The size of the largest IP packet that can be transmitted over an interconnect attachment.
Maximum lifetime of (Partner) interconnect attachment pairing key 28 days The maximum amount of time that can pass between generating a (partner) interconnect attachment pairing key and successful attachment provisioning by the partner. If a pairing key is no longer valid, you just delete and recreate a new pairing key for the partner interconnect provider to use.
Cloud Router limits Because Dedicated Interconnect and Partner Interconnect require Cloud Router, all of 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. Carefully review the Cloud Router Quotas and limits page for more information.


Cloud Interconnect では、さまざまな理由から使用できるリソースの割り当て量を制限しています。たとえば、割り当て量の上限を設定して予期しない使用量の急増を防ぐことで、Google Cloud ユーザーのコミュニティを保護しています。割り当て量は、無料枠で Google Cloud を試しているユーザーをトライアルに留めておくのにも役立ちます。



割り当て量の表示や、割り当て量の増加のリクエストを行うには、IAM メンバーは以下のいずれかの役割を持つ必要があります。

タスク 必要な役割
プロジェクトの割り当て量をチェックする プロジェクト オーナーまたは編集者または 割り当て閲覧者
割り当て量の変更、割り当て量の追加のリクエストを行う プロジェクト オーナーまたは編集者割り当て管理者、 または serviceusage.quotas.update 権限を持つカスタム役割


Cloud Console で、[割り当て] ページに移動します。

gcloud コマンドライン ツールで次のコマンドを実行して、割り当て量を確認します。[PROJECT_ID] は、実際のプロジェクト ID に置き換えます。

        gcloud compute project-info describe --project [PROJECT_ID]


        gcloud compute regions describe example-region


gcloud コマンド割り当てを超えた場合、gcloudquota exceeded エラー メッセージを出力し、終了コード 1 を返します。

API リクエストで割り当てを超えた場合、Google Cloud は次の HTTP ステータス コード HTTP 413 Request Entity Too Large を返します。


Cloud Console の [割り当て] ページから、追加の割り当てをリクエストします。割り当てのリクエストが処理されるまで、24~48 時間かかります。

  1. [割り当て] ページに移動します。

    [割り当て] ページに移動

  2. [割り当て] ページで、変更する割り当てを選択します。
  3. ページ上部にある [割り当てを編集] ボタンをクリックします。
  4. 名前、メールアドレス、電話番号を入力して、[次へ] をクリックします。
  5. 割り当てリクエストを入力して、[次へ] をクリックします。
  6. リクエストを送信します。


各割り当て量は、リソースを使用できるという前提で、作成可能な特定のリソースタイプの最大数を表します。割り当て量によって、リソースの可用性が保証されるわけではない点に注意することが重要です。割り当て量が使用可能でも、新しいリソースを使用できなければ、そのリソースを作成することはできません。たとえば、us-central1 リージョンで新しいリージョンの外部 IP アドレスを作成するための割り当て量が十分にあっても、そのリージョンに使用可能な外部 IP アドレスがない場合、外部 IP アドレスの作成はできません。ゾーンリソースの可用性は、新しいリソースを作成できるかにも影響を及ぼす可能性があります。

リージョン全体でリソースを使用できない状況はまれですが、ゾーン内のリソースが使い果たされることはあります。通常、そのリソースタイプの SLA に影響はありません。詳細については、リソースの関連するサービスレベル契約(SLA)を確認してください。