Network

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Kernel Comparison: Linux (2.6.22) versus Windows (Vista)

*Transport Layer (OSI 4)*	Linux	Windows
CUDP (Cyclic User Datagram Protocol)	N Y (patch)	N Y (patch)
DCCP (Datagram Congestion Control Protocol)	Y	N
FCP (Fiber Channel Protocol)	N Y (patch)	N Y (patch)
FCIP (Fiber Channel over TCP/IP)	N Y (patch)	N Y (patch)
IGMP (Internet Group Management Protocol)	Y	Y
iSCSI (Internet Small Computer System Interface)	Y	Y
NBF (NetBIOS Frames Protocol)	N	N
SPX (Sequenced Packet Exchange)	Y	N Y (patch)
RSVP (Resource ReSerVation Protocol)	Y	Y
SCTP (Stream Control Transmission Protocol)	Y	Y
SCSI (Small Computer System Interface)	Y	Y
TCP (Transmission Control Protocol)	Y	Y
UDP (User Datagram Protocol)	Y	Y
UDP Lite (User Datagram Protocol Lite)	Y	Y
VTP (Venturi Transport Protocol)	Y	Y
*Obsolete*
AEP (AppleTalk Echo Protocol)	-	-
ATP (AppleTalk Transaction Protocol)	-	-
IL (IL Protocol)	-	-
NBP (Name Binding Protocol)	-	-
RTMP (Routing Table Maintenance Protocol)	-	-

*Network Layer (OSI 3)*	Linux	Windows
*IP (Internet Protocol)*
IPv4	Y	Y
IPv6	Y	Y
IPv6 MLD (Multicast Listener Discovery)	Y	Y
DVMRP (Distance Vector Multicast Routing Protocol)	Y	Y
ICMP (Internet Control Message Protocol)	Y	Y
IGMP (Internet Group Multicast Protocol	Y	Y
PIM-SM (Protocol Independent Multicast Sparse Mode)	Y	Y
PIM-DM (Protocol Independent Multicast Dense Mode)	Y	Y
*IPSec (Internet Protocol Security)*
IPSec (Internet Protocol Security)	Y	Y
*Others*
IPX (Internetwork Packet Exchange)	Y	N
RIP (Routing Information Protocol)	Y	N
*Obsolete*
DDP (Datagram Delivery Protocol)	-	-

*TCP*	Linux	Windows
auto TCP receive window resize (RWIN)	Y	Y
auto TCP receive window resize (RWIN) - default	Y	Y
timestamps	Y	Y
timestamps - default	Y	Y (not initiate) N (initiate)

*TCP congestion avoidance algorithm*	Linux	Windows
default (#503 #505, #504)	CUBIC	CTCP
Binary Increase Congestion (BIC)	Y	Y
Compound (CTCP)	N Y (patch)	Y
CUBIC	Y	N
FAST	Y	N
H (H-TCP)	Y	N
High Speed (HS)	Y	N
Hybla	Y	N
Illinois	N Y	N
Low Priority	Y	N
New Reno	Y	Y
Reno	Y	N
Scalable	Y	N
Tahoe	Y	N
Vegas	Y	N
Veno	Y	N
Westwood+	Y	N
XCP	N Y (patch)	N
YeAH	N Y	N

*TCP Acknowledgement*	Linux	Windows
PAR (Positive Acknowledgement with Re-Transmission RFC 793)	Y	Y
NACK (Negative Acknowledgement RFC 4077)	Y	Y
Cumulative ACK (Cumulative Acknowledgement)	Y	Y
Delayed ACK (Delayed Acknowledgement RFC 831)	Y	Y
SACK (Selective Acknowledgement RFC 2883)	Y	Y
Quickack (controversial)	Y	N

*TCP Loss Recovery*	Linux	Windows
F-RTO (Forward Receive Timeout recovery RFC 4138)	Y	Y
Eifel Detection Algorithm (RFC 3522)	Y	N

*IPv6*	Linux	Windows
Native IPv6 stack	Y	Y

*Network (wireless)*	Linux	Windows
WiMAX Modem	Y	Y
WiBro Modem (mobile WiMAX)	N	Y
Wibree	N	N
UMTS-TDD Modem	Y	Y
WLAN (Wi-Fi, IEEE 802.11) A,B,G,N	Y	Y
WLAN (Wi-Fi) encryption - WEP, WPA, WPA2	Y	Y
WLAN (Wi-Fi) Quality of Service WMM	Y	Y
WLAN (Wi-Fi) Power Save WMM	Y	Y
GPRS Modem	Y	Y
UMTS Modem	Y	Y
EVDO Modem	Y	Y
HSDPA Modem	Y	Y
Packet Radio	Y	Y
Bluetooth 2.0	Y	Y
Bluetooth 2.1	N	N
Bluetooth 3.0	N	N
Other	Y	Y

*Network (other)*	Linux	Windows
IR	Y	Y