| XOT, X.25 over TCP |
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Description | Glossary | RFCs | Publications | Obsolete RFCs |
| Protocol suite: | TCP/IP. |
| Protocol type: | Application layer protocol. |
| Ports: | 1998 (TCP). |
| MIME subtype: | |
| SNMP MIBs: | |
| Working groups: | |
| Links: |
This protocol is used to transport X.25 packets over IP.
| MAC header | IP header | TCP header | XOT header | X.25 packet |
XOT header:
| 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
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| Version | Length | ||||||||||||||||||||||||||||||
Version.
16 bits.
Always cleared to 0.
XOT protocol version.
Length.
16 bits.
Size of the X.25 packet in bytes.
If the length is not a valid X.25 packet length, the TCP connection MUST be closed.
RFCs:
[RFC 1613] cisco Systems X.25 over TCP (XOT).
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Description | Glossary | RFCs | Publications | Obsolete RFCs |