Vista: Enabling Explicit Congestion Notification (ECN)

**Twisted_Firestarter** · 04-18-2007, 03:09 PM

When routers become congested to the point in which their incoming packet buffers fill and they begin dropping packets, the effect on the network is reduced bandwidth, an impact on loss or time-sensitive traffic flows, and possibly link idle time after the congestion occurs. Explicit Congestion Notification (ECN) for TCP/IP provides a way for routers to inform Transmission Control Protocol (TCP) peers that their buffers are filling due to congestion in the network. In response, TCP peers slow their transmission of data to help prevent packet losses.

To enable ECN suppor in Vista issue the following command:
netsh interface tcp set global ecncapability=enabled

04-18-2007, 03:09 PM	#1 (permalink)
Twisted_Firestarter Join Date: May 2003 Location: 90064 Posts: 935	Vista: Enabling Explicit Congestion Notification (ECN) When routers become congested to the point in which their incoming packet buffers fill and they begin dropping packets, the effect on the network is reduced bandwidth, an impact on loss or time-sensitive traffic flows, and possibly link idle time after the congestion occurs. Explicit Congestion Notification (ECN) for TCP/IP provides a way for routers to inform Transmission Control Protocol (TCP) peers that their buffers are filling due to congestion in the network. In response, TCP peers slow their transmission of data to help prevent packet losses. To enable ECN suppor in Vista issue the following command: netsh interface tcp set global ecncapability=enabled __________________ Twisted Firestarter a.k.a \|TG\| Harkonian

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