CA2255383A1 - Conversion of a permanent connection into a signalled permanent connection and vice versa - Google Patents
Conversion of a permanent connection into a signalled permanent connection and vice versa Download PDFInfo
- Publication number
- CA2255383A1 CA2255383A1 CA002255383A CA2255383A CA2255383A1 CA 2255383 A1 CA2255383 A1 CA 2255383A1 CA 002255383 A CA002255383 A CA 002255383A CA 2255383 A CA2255383 A CA 2255383A CA 2255383 A1 CA2255383 A1 CA 2255383A1
- Authority
- CA
- Canada
- Prior art keywords
- permanent connection
- connection
- path
- cross
- permanent
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0016—Arrangements providing connection between exchanges
- H04Q3/0025—Provisions for signalling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
- H04Q3/48—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using markers
- H04Q3/49—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using markers for end-to-end marking
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5619—Network Node Interface, e.g. tandem connections, transit switching
- H04L2012/562—Routing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5619—Network Node Interface, e.g. tandem connections, transit switching
- H04L2012/5624—Path aspects, e.g. path bundling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5625—Operations, administration and maintenance [OAM]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5629—Admission control
- H04L2012/563—Signalling, e.g. protocols, reference model
Abstract
A method of converting a permanent connection, such as a PVC, into a signalled permanent connection, such as an S-PVC, in a connection-orientated network, such as an ATM network, without service disruptions. The method includes the steps of:
(a) establishing signalling links between each network node along the path of the permanent connection; (b) providing information to identify the cross-connections along the path; (c) incorporating the cross-connect identification information in a call set-up message; (d) signalling the call set-up message along the path from a source network node to a destination network node; and (e) associating the cross-connection of each node along the path with the appropriate signalling links in order to form the signalled permanent connection. The cross-connect identification information may be a unique call identifier for the permanent connection, in circumstances where the call identifier is associated with the permanent connection cross-connections prior to Step (d).
Alternatively, the cross-connect identification information may be a permanent connection path definition specifying each cross-connection is the path. A
similar method for converting a signalled permanent connection into a permanent connection is also disclosed.
(a) establishing signalling links between each network node along the path of the permanent connection; (b) providing information to identify the cross-connections along the path; (c) incorporating the cross-connect identification information in a call set-up message; (d) signalling the call set-up message along the path from a source network node to a destination network node; and (e) associating the cross-connection of each node along the path with the appropriate signalling links in order to form the signalled permanent connection. The cross-connect identification information may be a unique call identifier for the permanent connection, in circumstances where the call identifier is associated with the permanent connection cross-connections prior to Step (d).
Alternatively, the cross-connect identification information may be a permanent connection path definition specifying each cross-connection is the path. A
similar method for converting a signalled permanent connection into a permanent connection is also disclosed.
Claims (29)
1. A method of converting a permanent connection into a signalled permanent connection in a connection-orientated network, wherein the permanent connection comprises an existing bearer channel cross-connection on each network node along a path of the permanent connection, said method comprising the steps of:
a. establishing signalling links between the network nodes in said path;
b. providing information to identify the existing bearer channel cross-connections along said path;
c. incorporating said cross-connect identification information in a call set-up message;
d. transmitting said call set-up message along said path from a source network node to a destination network node; and e. associating the existing bearer channel cross-connection of each node along said path with the appropriate signalling links to form said signalled permanent connection.
a. establishing signalling links between the network nodes in said path;
b. providing information to identify the existing bearer channel cross-connections along said path;
c. incorporating said cross-connect identification information in a call set-up message;
d. transmitting said call set-up message along said path from a source network node to a destination network node; and e. associating the existing bearer channel cross-connection of each node along said path with the appropriate signalling links to form said signalled permanent connection.
2. The method according to claim 1, wherein said cross-connect identification information comprises one of i. a unique call identifier for said permanent connection, wherein said call identifier is associated with the existing bearer channel cross-connections prior to Step 1(d); and ii. a permanent connection path definition specifying each existing bearer channel cross-connection in said path.
3. The method according to claim 2, wherein said call set-up message is signalled over said signalling links and an acknowledgement message is signalled to said source node from said destination node confirming the successful establishment of said signalled permanent connection.
4. The method according to claim 3 wherein said signalling links are manually provisioned.
5. The method according to claim 4, wherein said unique call identifier for the permanent connection is created by a network management system and transmitted to each network node along said permanent connection path.
6. The method according to claim 5, wherein said call set-up message is created by one of said source node and said network management system.
7. The method according to claim 6, wherein said call set-up message specifies the intermediate nodes along said permanent connection path.
8. The method according to claim 7, wherein said permanent connection is a permanent virtual connection (PVC) and said signalled permanent connection is a soft permanent virtual connection (S-PVC) of an asynchronous transfer mode (ATM) network.
9. A method of converting a permanent connection into a signalled permanent connection in a connection-orientated network, wherein said permanent connection is managed by a network management system which stores a permanent connection path definition specifying existing bearer channel cross-connects made on each network node along the path of the permanent connection, said method comprising the steps of:
a. establishing signalling links between the network nodes along said path;
b. providing information to identify the existing bearer channel cross-connections along said path;
c. incorporating said cross-connect identification information in a signalled permanent connection call set-up message;
d. signalling said call set-up message over said signalling links along said path from a source network node to a destination network node;
and e. employing said identified existing bearer channel cross-connection on each said node for said signalled permanent connection.
a. establishing signalling links between the network nodes along said path;
b. providing information to identify the existing bearer channel cross-connections along said path;
c. incorporating said cross-connect identification information in a signalled permanent connection call set-up message;
d. signalling said call set-up message over said signalling links along said path from a source network node to a destination network node;
and e. employing said identified existing bearer channel cross-connection on each said node for said signalled permanent connection.
10. The method according to claim 9, wherein said cross-connect identification information comprises one of i. a unique call identifier for said path, wherein said call identifiers is transmitted by said network management system to each said node prior to step 9(d); and ii. said path definition.
11. The method according to claim 10, including the step of signalling an acknowledgement message to said source node from said destination node confirming the successful establishment of said signalled permanent connection.
12. The method according to claim 11, wherein said network management system deletes said permanent connection path definition therefrom.
13. The method according to claim 10, wherein said signalling links are manually provisioned.
14. The method according to claim 10, wherein said call set-up message is created by one of said source node and said network management system.
15. The method according to claim 14, wherein said call set-up message specifies the intermediate nodes along said permanent connection path.
16. The method according to claim 10, wherein said permanent connection is a permanent virtual connection (PVC) and said signalled permanent connection is a soft permanent virtual connection (S-PVC) of an asynchronous transfer mode (ATM) network.
17. Apparatus for converting a permanent connection into a signalled permanent connection in a connection-orientated network comprising interconnected network nodes, said apparatus comprising:
signalling means for communicating signalling messages between network nodes along a path of said permanent connection;
a network management system, connected to said network nodes along said path, said system including means for providing information to identify an existing bearer channel cross-connection made on each network node along said path; and call processing means distributed on each said node along said path for incorporating said cross-connect identification information in a call set-up message, signalling said call set-up message along said path from a source node to a destination node, and associating the existing bearer channel cross-connection identified on each said node along said path with said signalling means to form said signalled permanent connection.
signalling means for communicating signalling messages between network nodes along a path of said permanent connection;
a network management system, connected to said network nodes along said path, said system including means for providing information to identify an existing bearer channel cross-connection made on each network node along said path; and call processing means distributed on each said node along said path for incorporating said cross-connect identification information in a call set-up message, signalling said call set-up message along said path from a source node to a destination node, and associating the existing bearer channel cross-connection identified on each said node along said path with said signalling means to form said signalled permanent connection.
18. The apparatus according to claim 17, wherein:
said cross-connect identification information comprises a unique call identifier;
said network management system comprises means for transmitting said unique call identifier to the nodes along said path; and said nodes include means for associating the unique call identifier with the corresponding existing bearer channel cross-connection.
said cross-connect identification information comprises a unique call identifier;
said network management system comprises means for transmitting said unique call identifier to the nodes along said path; and said nodes include means for associating the unique call identifier with the corresponding existing bearer channel cross-connection.
19. The apparatus according to claim 17, wherein said cross-connect identification information comprises the specific identity of all said existing bearer channel cross-connections along said path.
20. The apparatus according to claim 18, wherein said permanent connection is a permanent virtual connection (PVC) and said signalled permanent connection is a soft permanent virtual connection (S-PVC) of an asynchronous transfer mode (ATM) network.
21. The apparatus according to claim 19, wherein said permanent connection is a permanent virtual connection (PVC) and said signalled permanent connection is a soft permanent virtual connection (S-PVC) of an asynchronous transfer mode (ATM) network
22. A method of converting a signalled permanent connection into a permanent connection in a data transmission network which includes a signalling network for establishing and releasing switched connections, wherein said signalled permanent connection comprises a series of bearer channels cross-connected on each network node along a signalled permanent connection path, said method comprising the steps of a. signalling a release message from an initiating network node, wherein said release message carries a conversion instruction;
b. progressing said release message to the network nodes situated in said path; and c. disassociating said bearer channels from said signalling network without dismantling said cross-connections in response to said conversion instruction.
b. progressing said release message to the network nodes situated in said path; and c. disassociating said bearer channels from said signalling network without dismantling said cross-connections in response to said conversion instruction.
23. The method according to claim 22, including the step of labelling said cross-connections as being associated with a permanent connection.
24. The method according to claim 22, including the steps of:
establishing a unique call identifier in respect of said signalled permanent connection;
transmitting said call identifier to the network nodes situated in said path and tagging said cross-connects with said call identifier; and following said tagged cross-connects to build a permanent connection path definition record.
establishing a unique call identifier in respect of said signalled permanent connection;
transmitting said call identifier to the network nodes situated in said path and tagging said cross-connects with said call identifier; and following said tagged cross-connects to build a permanent connection path definition record.
25. The method according to claim 23, wherein a network management system carries out the step of following said tagged cross-connects to build said permanent connection path definition record.
26. The method according to claim 25, wherein said network management system labels said cross-connections as being associated with a permanent connection.
27. The apparatus according to claim 26, wherein said permanent connection is a permanent virtual connection (PVC) and said signalled permanent connection is a soft permanent virtual connection (S-PVC) of an asynchronous transfer mode (ATM) network.
28. A method of converting a permanent connection into a signalled permanent connection in a connection-orientated network, wherein said permanent connection comprises a series of bearer channels cross-connected on each network node along a permanent connection path, said method comprising the steps of:
a. establishing signalling links between the network nodes in said path;
b. providing information to identify existing cross-connections for the bearer channels along said path;
c. incorporating said cross-connect identification information in a call set-up message;
d. signalling said call set-up message over said signalling links along said path from a source network node to a destination network node;
and e. associating the bearer channels along said path with the appropriate signalling links without dismantling said existing cross-connections in order to form said signalled permanent connection.
a. establishing signalling links between the network nodes in said path;
b. providing information to identify existing cross-connections for the bearer channels along said path;
c. incorporating said cross-connect identification information in a call set-up message;
d. signalling said call set-up message over said signalling links along said path from a source network node to a destination network node;
and e. associating the bearer channels along said path with the appropriate signalling links without dismantling said existing cross-connections in order to form said signalled permanent connection.
29. The method according to claim 28, wherein said cross-connect identification information comprises one of i. a unique call identifier for said permanent connection, wherein said call identifier is associated with the existing cross-connections prior to Step 28(d); and ii. a permanent connection path definition specifying each existing cross-connection is said path.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002255383A CA2255383A1 (en) | 1998-12-04 | 1998-12-04 | Conversion of a permanent connection into a signalled permanent connection and vice versa |
| US09/365,236 US6665295B1 (en) | 1998-12-04 | 1999-07-30 | Conversion of a permanent connection into a signaled permanent connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002255383A CA2255383A1 (en) | 1998-12-04 | 1998-12-04 | Conversion of a permanent connection into a signalled permanent connection and vice versa |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2255383A1 true CA2255383A1 (en) | 2000-06-04 |
Family
ID=29425774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002255383A Abandoned CA2255383A1 (en) | 1998-12-04 | 1998-12-04 | Conversion of a permanent connection into a signalled permanent connection and vice versa |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US6665295B1 (en) |
| CA (1) | CA2255383A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7353292B2 (en) * | 1999-07-29 | 2008-04-01 | Fujitsu Limited | Device and method for changing connection types between a fixed or variable state with an external switching unit |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6700870B1 (en) * | 1999-12-10 | 2004-03-02 | At&T Corp. | Method for reducing data loss in automatically re-configured ATM networks |
| JP2001237855A (en) * | 2000-02-25 | 2001-08-31 | Fujitsu Ltd | Switching system and its routing method |
| US6853635B1 (en) * | 2000-07-24 | 2005-02-08 | Nortel Networks Limited | Multi-dimensional lattice network |
| US7447198B1 (en) * | 2001-04-23 | 2008-11-04 | Brocade Communications Systems, Inc. | Link trunking and measuring link latency in fibre channel fabric |
| US7170894B2 (en) * | 2001-12-22 | 2007-01-30 | Adc Dsl Systems, Inc. | Establishment of an end to end virtual connection |
| US7835266B2 (en) * | 2002-10-29 | 2010-11-16 | Fujitsu Limited | Node apparatus and maintenance and operation supporting device |
| US8046463B1 (en) * | 2003-08-27 | 2011-10-25 | Cisco Technology, Inc. | Method and apparatus for controlling double-ended soft permanent virtual circuit/path connections |
| US8045492B2 (en) * | 2005-01-20 | 2011-10-25 | Nortel Networks Limited | Dynamic establishment of virtual circuits using multi-segment pseudowires |
| US8125925B2 (en) * | 2005-04-29 | 2012-02-28 | Ciena Corporation | Method and apparatus for non-disruptive call modification |
| US8509113B2 (en) * | 2006-01-12 | 2013-08-13 | Ciena Corporation | Methods and systems for managing digital cross-connect matrices using virtual connection points |
| US8576855B2 (en) * | 2006-05-17 | 2013-11-05 | Alcatel Lucent | System and method of interface association for interface operational status event monitoring |
| CN101945308B (en) * | 2009-07-07 | 2013-05-08 | 中兴通讯股份有限公司 | Method and device for migrating service in automatic switched optical network |
| US8363656B2 (en) * | 2010-09-15 | 2013-01-29 | International Business Machines Corporation | Multiple virtual machines sharing a single IP address |
| US8665889B2 (en) | 2012-03-01 | 2014-03-04 | Ciena Corporation | Unidirectional asymmetric traffic pattern systems and methods in switch matrices |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2314723B (en) * | 1996-06-24 | 1998-05-27 | Nemesys Research Limited | Asynchronous transfer mode network |
| US6115380A (en) * | 1996-11-22 | 2000-09-05 | Sprint Communications Co., L.P. | Broadband telecommunications system |
| CA2510097C (en) * | 1997-01-24 | 2009-06-02 | Alcatel Canada Inc. | Switched connections diagnostics in a signalling network |
| JPH10262058A (en) * | 1997-03-18 | 1998-09-29 | Fujitsu Ltd | Control method for fixed connection |
| US6125119A (en) * | 1997-10-15 | 2000-09-26 | International Business Machines Corporation | Dynamic permanent virtual connection (DPVC) at user-to-network interfaces in frame relay networks |
| US6404765B1 (en) * | 1998-05-06 | 2002-06-11 | Nortel Networks Limited | Method and apparatus for transporting DS-X signals through a packet network |
| US6292463B1 (en) * | 1998-07-06 | 2001-09-18 | Alcatel Canada Inc. | Method and apparatus for recovering from a signalling failure in a switched connection data transmission network |
-
1998
- 1998-12-04 CA CA002255383A patent/CA2255383A1/en not_active Abandoned
-
1999
- 1999-07-30 US US09/365,236 patent/US6665295B1/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7353292B2 (en) * | 1999-07-29 | 2008-04-01 | Fujitsu Limited | Device and method for changing connection types between a fixed or variable state with an external switching unit |
Also Published As
| Publication number | Publication date |
|---|---|
| US6665295B1 (en) | 2003-12-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |