blank.gif (43 bytes)

Church Of The
Swimming Elephant

Search:
IEEE 802.2 Details Connected: An Internet Encyclopedia
IEEE 802.2 Details

Up: Connected: An Internet Encyclopedia
Up: Requests For Comments
Up: RFC 1042
Up: Frame Format and MAC Level Issues
Prev: Frame Format and MAC Level Issues
Next: IEEE 802.3 Details

IEEE 802.2 Details

IEEE 802.2 Details

While not necessary for supporting IP and ARP, all implementations are required to support IEEE 802.2 standard Class I service. This requires supporting Unnumbered Information (UI) Commands, eXchange IDentification (XID) Commands and Responses, and TEST link (TEST) Commands and Responses.

When either an XID or a TEST command is received a response must be returned; with the Destination and Source addresses, and the DSAP and SSAP swapped.

When responding to an XID or a TEST command the sense of the poll/final bit must be preserved. That is, a command received with the poll/final bit reset must have the response returned with the poll/final bit reset and vice versa.

The XID command or response has an LLC control field value of 175 (decimal) if poll is off or 191 (decimal) if poll is on. (See Appendix on Numbers.)

The TEST command or response has an LLC control field value of 227 (decimal) if poll is off or 243 (decimal) if poll is on. (See Appendix on Numbers.)

A command frame is identified with high order bit of the SSAP address reset. Response frames have high order bit of the SSAP address set to one.

XID response frames should include an 802.2 XID Information field of 129.1.0 indicating Class I (connectionless) service. (type 1).

TEST response frames should echo the information field received in the corresponding TEST command frame.


Next: IEEE 802.3 Details

Connected: An Internet Encyclopedia
IEEE 802.2 Details

Cotse.Net

Protect yourself from cyberstalkers, identity thieves, and those who would snoop on you.
Stop spam from invading your inbox without losing the mail you want. We give you more control over your e-mail than any other service.
Block popups, ads, and malicious scripts while you surf the net through our anonymous proxies.
Participate in Usenet, host your web files, easily send anonymous messages, and more, much more.
All private, all encrypted, all secure, all in an easy to use service, and all for only $5.95 a month!

Service Details

 
.
www.cotse.com
Have you gone to church today?
.
All pages 1999, 2000, 2001, 2002, 2003 Church of the Swimming Elephant unless otherwise stated
Church of the Swimming Elephant1999, 2000, 2001, 2002, 2003 Cotse.com.
Cotse.com is a wholly owned subsidiary of Packetderm, LLC.

Packetderm, LLC
210 Park Ave #308
Worcester, MA 01609