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  1. Catalog
  2. System.Net.Sockets
  3. SocketOptionName
  4. FastOpen
  • SocketOptionName
    • AcceptConnection
    • AddMembership
    • AddSourceMembership
    • BlockSource
    • Broadcast
    • BsdUrgent
    • ChecksumCoverage
    • Debug
    • DontFragment
    • DontLinger
    • DontRoute
    • DropMembership
    • DropSourceMembership
    • Error
    • ExclusiveAddressUse
    • Expedited
    • FastOpen
    • HeaderIncluded
    • HopLimit
    • IPOptions
    • IPProtectionLevel
    • IpTimeToLive
    • IPv6Only
    • KeepAlive
    • Linger
    • MaxConnections
    • MulticastInterface
    • MulticastLoopback
    • MulticastTimeToLive
    • NoChecksum
    • NoDelay
    • OutOfBandInline
    • PacketInformation
    • ReceiveBuffer
    • ReceiveLowWater
    • ReceiveTimeout
    • ReuseAddress
    • ReuseUnicastPort
    • SendBuffer
    • SendLowWater
    • SendTimeout
    • TcpKeepAliveInterval
    • TcpKeepAliveRetryCount
    • TcpKeepAliveTime
    • Type
    • TypeOfService
    • UnblockSource
    • UpdateAcceptContext
    • UpdateConnectContext
    • UseLoopback
net9.0
namespace System.Net.Sockets
{
    public enum SocketOptionName
    {
        FastOpen = 15
    }
}
Design Reviews
  • dotnet/runtime#1476 5 years ago (Approved)
.NET 9.0
Information specific to net9.0
Assembly

System.Net.Sockets , Version=9.0.0.0, PublicKeyToken=b03f5f7f11d50a3a

Referencing

The API is automatically referenced.

Platform Restrictions

This API is supported on any platform except for these:

  • Browser
  • Built-in API
  • Package-provided API
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03/18/2025
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