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CA2277466A1 - Method and system for transferring digital data calls between different destinations - Google Patents

Method and system for transferring digital data calls between different destinations Download PDF

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Publication number
CA2277466A1
CA2277466A1 CA002277466A CA2277466A CA2277466A1 CA 2277466 A1 CA2277466 A1 CA 2277466A1 CA 002277466 A CA002277466 A CA 002277466A CA 2277466 A CA2277466 A CA 2277466A CA 2277466 A1 CA2277466 A1 CA 2277466A1
Authority
CA
Canada
Prior art keywords
tdm
alarm
atm
alarm signal
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002277466A
Other languages
French (fr)
Inventor
Richard J. Bruno
Patrick J. Feury, Jr.
Thomas S. Giuffrida
Joseph M. Malloy
James R. Parcells, Jr.
Terry Watkins
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
AT&T Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AT&T Corp filed Critical AT&T Corp
Publication of CA2277466A1 publication Critical patent/CA2277466A1/en
Abandoned legal-status Critical Current

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  • Time-Division Multiplex Systems (AREA)

Abstract

Systems and methods for handling different types of alarm signals, such as red, blue, and/or yellow alarm signals, in hybrid time division multiplexing (TDM)/asynchronous transfer mode (ATM) networks. A terminal adapter, which may be in the form of a stand-alone device and/or integrated with an ATM switch, may receive an alarm signal from a TDM switch. Based on the nature of the alarm signal, the terminal adapter may send a message to the ATM switch and/or acknowledge to the TDM switch that the terminal adapter has received the alarm signal from the TDM switch. The ATM switch, upon receiving the message from the terminal adapter, may route appropriate other messages to other ATM switches and/or TDM switches in the hybrid network. Other ATM
switches receiving such messages may in turn route appropriate messages via the signaling network to other ATM switches and/or TDM switches.

Claims (23)

1. A method comprising the step of generating a first alarm message in an asynchronous transfer mode (ATM) network responsive to receiving a time division multiplexing (TDM) alarm signal.
2. The method of claim 1 wherein the TDM alarm signal is a Blue alarm signal.
3. The method of claim 1 wherein the TDM alarm signal is a Yellow alarm signal.
4. The method of claim 1 wherein the TDM alarm signal is a loss of signal.
5. The method of claim 1 wherein the first alarm message is an ATM
user-to-network signaling message.
6. The method of claim 1 further including the step of routing a second alarm message associated with the first alarm message through the ATM network.
7. The method of claim 6 wherein the second alarm message is a "BLOCKED
STREAM" message.
8. The method of claim 6 wherein the second alarm message is a "BLOCKED
TRUNK" message.
9. The method of claim 6 wherein the second alarm message is the first alarm message.
10. The method of claim 1 wherein the TDM alarm signal is generated by a first TDM switch associated with an alarmed trunk, the method further including the step of sending a second alarm message associated with the first alarm message to a second TDM

switch, wherein the second TDM switch marks the alarmed trunk as out of service responsive to receiving the second alarm message.
11. In an asynchronous transfer mode (ATM) network, a method comprising the step of generating a time division multiplexing (TDM) alarm signal responsive to a disruption occurring in the ATM network.
12. The method of claim 10 wherein the TDM alarm signal is a Blue alarm signal.
13. The method of claim 10 wherein the TDM alarm signal is a Yellow alarm signal.
14. An apparatus configured to be connected to a TDM network, the apparatus comprising:
a time division multiplexing (TDM) interface configured to be connected to the TDM network and further configured to generate a first signal responsive to receiving a TDM alarm signal from the TDM network;
a processor connected to the TDM interface and configured to generate a second signal responsive to receiving the first signal; and an asynchronous transfer mode (ATM) interface connected to the processor and configured to generate an ATM alarm message responsive to receiving the second signal.
15. The apparatus of claim 14 wherein the TDM alarm signal is a Blue alarm signal.
16. The apparatus of claim 14 wherein the TDM alarm signal is a Yellow alarm signal.
17. The apparatus of claim 14 wherein the TDM alarm signal is a loss of signal.
18. The apparatus of claim 14 wherein the ATM alarm message is an ATM
user-to-network signaling message.
19. The apparatus of claim 14 wherein the apparatus is configured to be incorporated into an ATM switch.
20. The apparatus of claim 14 further including a memory connected to the processor, wherein the processor is further configured to log the TDM alarm signal in the memory.
21. An apparatus configured to be connected to an ATM network, the apparatus comprising:
an asynchronous transfer mode (ATM) interface connected to the processor and configured to generate a first signal responsive to detecting a disruption in the ATM
network;
a processor connected to the ATM interface and configured to generate a second signal responsive to receiving the first signal; and a time division multiplexing (TDM) interface connected to the processor and configured to generate a TDM alarm signal responsive to receiving the second signal.
22. The method of claim 10 wherein the TDM alarm signal is a Blue alarm signal.
23. The method of claim 10 wherein the TDM alarm signal is a Yellow alarm signal.
CA002277466A 1998-08-19 1999-07-13 Method and system for transferring digital data calls between different destinations Abandoned CA2277466A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13623398A 1998-08-19 1998-08-19
US09/136,233 1998-08-19

Publications (1)

Publication Number Publication Date
CA2277466A1 true CA2277466A1 (en) 2000-02-19

Family

ID=31186226

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002277466A Abandoned CA2277466A1 (en) 1998-08-19 1999-07-13 Method and system for transferring digital data calls between different destinations

Country Status (1)

Country Link
CA (1) CA2277466A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7009982B2 (en) * 1999-07-14 2006-03-07 Ericsson Inc. Combining narrowband applications with broadband transport
WO2012083756A1 (en) * 2010-12-20 2012-06-28 中兴通讯股份有限公司 Method and system for transmitting alerting information of tdm distal circuit emulation service

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7009982B2 (en) * 1999-07-14 2006-03-07 Ericsson Inc. Combining narrowband applications with broadband transport
WO2012083756A1 (en) * 2010-12-20 2012-06-28 中兴通讯股份有限公司 Method and system for transmitting alerting information of tdm distal circuit emulation service
CN102546204A (en) * 2010-12-20 2012-07-04 中兴通讯股份有限公司 Method and system for transmitting far-end alarming information of time division multiplexing (TDM) circuit simulation service
CN102546204B (en) * 2010-12-20 2015-10-28 中兴通讯股份有限公司 The transmission method of TDM circuit emulation service remote alarm information and system

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued