RFC1490 - Multiprotocol Interconnect over Frame Relay(2)

时间:2005-02-14 来源: 作者: 点击:
| | +-------------------------------+ | FCS | +-------------------------------+ Note 3: First octet of 8208 packet also identifies the NLPID which is "..01....". Format of ISO 8208 frame Modulo 128 +
  
| |
+-------------------------------+
| FCS |
+-------------------------------+

Note 3: First octet of 8208 packet also identifies the
NLPID which is "..01....".

Format of ISO 8208 frame
Modulo 128
+-------------------------------+
| Q.922 Address |
+---------------+---------------+
| ....Control I frame |
+---------------+---------------+
| 8208 packet (modulo 128) |
| Note 4 |
+-------------------------------+
| FCS |
+-------------------------------+

Note 4: First octet of 8208 packet also identifies the
NLPID which is "..10....".

13. References

[1] International Telegraph and Telephone Consultative Committee,
"ISDN Data Link Layer Specification for Frame Mode Bearer
Services", CCITT Recommendation Q.922, 19 April 1991.

[2] American National Standard For Telecommunications - Integrated
Services Digital Network - Core Aspects of Frame Protocol for Use
with Frame Relay Bearer Service, ANSI T1.618-1991, 18 June 1991.

[3] Information technology - Telecommunications and Information
Exchange between systems - Protocol Identification in the Network
Layer, ISO/IEC TR 9577: 1990 (E) 1990-10-15.

[4] Baker, F., Editor, "Point to Point Protocol Extensions for
Bridging", RFC1220, ACC, April 1991.

[5] International Standard, Information Processing Systems - Local
Area Networks - Logical Link Control, ISO 8802-2: 1989 (E), IEEE
Std 802.2-1989, 1989-12-31.

[6] Plummer, D., "An Ethernet Address Resolution Protocol - or -
Converting Network Protocol Addresses to 48.bit Ethernet Address
for Transmission on Ethernet Hardware", STD 37, RFC826, MIT,
November 1982.

[7] Reynolds, J. and J. Postel, "Assigned Numbers", STD 2, RFC1340,
USC/Information Sciences Institute, July 1992.

[8] Finlayson, R., Mann, R., Mogul, J., and M. Theimer, "A Reverse
Address Resolution Protocol", STD 38, RFC903, Stanford
University, June 1984.

[9] Postel, J. and Reynolds, J., "A Standard for the Transmission of
IP Datagrams over IEEE 802 Networks", RFC1042, USC/Information
Sciences Institute, February 1988.

[10] IEEE, "IEEE Standard for Local and Metropolitan Area Networks:
Overview and architecture", IEEE Standards 802-1990.

[11] Bradley, T., and C. Brown, "Inverse Address Resolution Protocol",
RFC1293, Wellfleet Communications, Inc., January 1992.

[12] IEEE, "IEEE Standard for Local and Metropolitan Networks: Media
Access Control (MAC) Bridges", IEEE Standard 802.1D-1990.

[13] PROJECT 802 - LOCAL AND METROPOLITAN AREA NETWORKS, Draft
Standard 802.1G: Remote MAC Bridging, Draft 6, October 12, 1992.

14. Security Considerations

Security issues are not discussed in this memo.

15. Authors' Addresses

Terry Bradley
Wellfleet Communications, Inc.
15 Crosby Drive
Bedford, MA 01730

Phone: (617) 280-2401
Email: tbradley@wellfleet.com

Caralyn Brown
Wellfleet Communications, Inc.
15 Crosby Drive
Bedford, MA 01730

Phone: (617) 280-2335
Email: cbrown@wellfleet.com

Andrew G. Malis
Ascom Timeplex, Inc.
Advanced Products Business Unit
289 Great Road Suite 205
Acton, MA 01720

Phone: (508) 266-4500
Email: malis_a@timeplex.com

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