Cell Relay Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] Re: T1S1.5/92-029R3 : what(where) is it ?
Hi, > The UNI 3.1 spec mentions T1S1.5/92-029R3 when > describing OAM cells operation. > Could anyone please point to the organization > that would have(sell) this document (i.e. ANSI,ETSI...) The UNI 3.0 and UNI 3.1 spec says the following: ---------------- 3.5.1 ATM Layer Management Information Flows Figure 3-11 shows the OAM flows defined for the exchange of operations information between nodes (including customer premises equipment). At the ATM layer, the F4-F5 flows will be carried via OAM cells. The OAM cell flow used for end-to-end management functions may be carried transparently through the private ATM switch and made available to the user. The F4 flow is used for segment2 2 or end-to-end (VP termination) management at the VP level using VCI values 3 and 4. The F5 flow is used for segment3 or end-to-end (VC termination) management at the VC level using PT code points 4 and 5. A detailed explanation on OAM cell flow mechanism is given in T1S1.5/92-029R3, CCITT Recommendation. I.610. ---------------- If you look in the ITU-T spec I.610 then you'll see the OAM definitions. I believe the T1S1.5/92-029R3 is from ANSI or it could be a work document before the I.610 was done. You can buy ITU-T specs. from the ITU http://www.itu.ch/ more precise http://ecs.itu.ch/itudoc/itu-t/rec/i/bookshop.html it cost 22 CHF. Regards, Michael |
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