Public Network Bandwidth Cap

Last updated: 2021-02-26 14:21:46

    This document describes the outbound and inbound bandwidth cap of CVM instances, and compares the peak bandwidth in different billing modes.

    Outbound Bandwidth Cap (Downstream Bandwidth)

    The public network bandwidth cap refers to the upper limit of outbound bandwidth, i.e. the bandwidth going out from CVM instances. The public bandwidth cap varies by network billing mode. See below for details:

    • The following rules apply to instances created after 00:00, February 24, 2020:

      Network Billing MethodInstanceRange of Bandwidth Cap (Mbps)
      Instance Billing ModeInstance Configuration
      Bill-by-trafficPay-as-you-go instancesAll0-100
      Bill-by-bandwidthPay-as-you-go instancesAll0-100
      Bandwidth packageAll0-2000
    • The following rules apply to instances created before 00:00, February 24, 2020:

      Network Billing MethodInstanceRange of Bandwidth Cap (Mbps)
      Instance Billing ModeInstance Configuration
      Bill-by-trafficPay-as-you-go instancesAll0-100
      Bill-by-bandwidthPay-as-you-go instancesAll0-100
      Bandwidth packageAll0-1000

    Inbound Bandwidth Cap (Upstream Bandwidth)

    The public network inbound bandwidth refers to the bandwidth that flows into CVM instances.

    • If the bandwidth you purchased is greater than 10 Mbps, Tencent Cloud will assign a public network inbound bandwidth equals to the purchased bandwidth.
    • If the bandwidth you purchased is less than 10 Mbps, Tencent Cloud will assign 10-Mbps public network inbound bandwidth.

    Peak Bandwidth

    The peak bandwidth is applicable to both bill-by-traffic and bill-by-bandwidth, but it means differently in these two cases as follows:

    Billing Mode Difference Notes
    Bill-by-traffic The peak bandwidth is only regarded as the maximum peak bandwidth, and not as the committed bandwidth. When bandwidth resources are contested, the peak bandwidth may be limited. The sum of peak bandwidth of all the running bill-by-traffic instances (such as CVMs, EIPs, elastic IPv6 addresses) cannot exceed 5 Gbps in one region. If your application requires a guaranteed or higher bandwidth, choose bill-by-bandwidth.
    Bill-by-bandwidth
    (including monthly bandwidth subscription and hourly bandwidth)
    This peak bandwidth is the committed bandwidth, and is guaranteed in case of bandwidth competition. The sum of peak bandwidth of all the running instances such as CVMs and EIPs that are billed at a fixed bandwidth (including monthly-subscribed bandwidth and hourly bandwidth) cannot exceed 50 Gbps in one region. If you require a higher bandwidth, contact your sales rep.

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