IL Protocol
| The five-layer TCP/IP model |
| 5. Application layer |
|
DHCP · DNS · FTP · Gopher · HTTP · IMAP4 · IRC · NNTP · XMPP · POP3 · SIP · SMTP · SNMP · SSH · TELNET · RPC · RTCP · RTSP · TLS · SDP · SOAP · GTP · STUN · NTP · RIP · ... |
| 4. Transport layer |
|
TCP · UDP · DCCP · SCTP · RTP · RSVP · IGMP · ICMP · ICMPv6 · PPTP · ... |
| 3. Network/Internet layer |
|
IP (IPv4 · IPv6) · OSPF · IS-IS · BGP · IPsec · ARP · RARP · ... |
| 2. Data link layer |
|
802.11 · Wi-Fi · WiMAX · ATM · DTM · Token Ring · Ethernet · FDDI · Frame Relay · GPRS · EVDO · HSPA · HDLC · PPP · L2TP · ISDN · ... |
| 1. Physical layer |
|
Ethernet physical layer · Modems ·
PLC · SONET/SDH ·
G.709 · OFDM ·
|
The Internet Link protocol or (IL) is a connection-based transport layer protocol designed at Bell Labs originally as part of the Plan 9 operating system and is used to carry 9P. It is assigned the Internet Protocol number of 40. It is similar to TCP but much simpler.
Its main features are:
- Reliable datagram service
- In-sequence delivery
- Internetworking using IP
- Low complexity, high performance
- Adaptive timeouts
As of the Fourth Edition of Plan 9, 2003, IL is deprecated in favor of TCP/IP.[1]
External links
- Dave Presotto; Phil Winterbottom. The IL protocol (HTML).—The original paper describing IL
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