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wgengine/netstack: increase maxInFlightConnectionAttempts 

Address reports of subnet router instability when running in
`--tun=userspace-networking` mode.

Fixes https://github.com/tailscale/corp/issues/12184

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
pull/8329/head
Denton Gentry 2023-06-12 07:08:06 -07:00
parent 6172f9590b
commit 931c92e735
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1 changed files with 1 additions and 1 deletions
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2
wgengine/netstack/netstack.go
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@ -256,7 +256,7 @@ func (ns *Impl) Start(lb *ipnlocal.LocalBackend) error {
ns.e.AddNetworkMapCallback(ns.updateIPs)
// size = 0 means use default buffer size
const tcpReceiveBufferSize = 0
const maxInFlightConnectionAttempts = 16
const maxInFlightConnectionAttempts = 1024
tcpFwd := tcp.NewForwarder(ns.ipstack, tcpReceiveBufferSize, maxInFlightConnectionAttempts, ns.acceptTCP)
udpFwd := udp.NewForwarder(ns.ipstack, ns.acceptUDP)
ns.ipstack.SetTransportProtocolHandler(tcp.ProtocolNumber, ns.wrapProtoHandler(tcpFwd.HandlePacket))