Title:
MAINTAINING TIME-DIVISION MULTIPLEXING OVER PSEUDOWIRE CONNECTIONS DURING NETWORK OUTAGES
Document Type and Number:
WIPO Patent Application WO/2010/146472
Kind Code:
A3
Abstract:
Various exemplary embodiments relate to a provider edge node and a related method. The provider edge node may include a receiver that receives at least one packet transmitted over a TDM pseudowire using a structure- agnostic transmission mechanism. The provider edge node may also include a physical interface configured to output frames to a corresponding customer edge (CE) device and a machine-readable storage médium that stores a TDM framing type corresponding to the physical interface. Finally, the provider edge node may include a circuit émulation engine that, during periods in which a network error has occurred, transmits a plurality of frames to the CE device over the physical interface. A TDM data payload of each frame may include an idle pattern, while a group of framing bits of the plurality of frames may define a framing pattern corresponding to the TDM framing type stored for the physical interface.
Inventors:
RORAI JOSEPH (CA)
PARENT CLAUDE (CA)
PARENT CLAUDE (CA)
Application Number:
PCT/IB2010/001945
Publication Date:
April 07, 2011
Filing Date:
June 10, 2010
Export Citation:
Assignee:
ALCATEL LUCENT (FR)
RORAI JOSEPH (CA)
PARENT CLAUDE (CA)
RORAI JOSEPH (CA)
PARENT CLAUDE (CA)
International Classes:
H04J3/14
Domestic Patent References:
| WO2003030422A1 | 2003-04-10 |
Foreign References:
| US5084891A | 1992-01-28 | |||
| US20090141640A1 | 2009-06-04 |
Other References:
VAINSHTEIN A ET AL: "Structure-Agnostic Time Division Multiplexing (TDM) over Packet (SAToP); rfc4553.txt", IETF STANDARD, INTERNET ENGINEERING TASK FORCE, IETF, CH, 1 June 2006 (2006-06-01), XP015046310, ISSN: 0000-0003
"Synchronous frame structures used at 1544, 6312, 2048, 8448 and 44 736 kbit/s hierarchical levels; G.704 (10/98)", ITU-T STANDARD IN FORCE (I), INTERNATIONAL TELECOMMUNICATION UNION, GENEVA, CH, no. G.704 (10/98), 1 October 1998 (1998-10-01), XP017400825
"Synchronous frame structures used at 1544, 6312, 2048, 8448 and 44 736 kbit/s hierarchical levels; G.704 (10/98)", ITU-T STANDARD IN FORCE (I), INTERNATIONAL TELECOMMUNICATION UNION, GENEVA, CH, no. G.704 (10/98), 1 October 1998 (1998-10-01), XP017400825
Attorney, Agent or Firm:
NICOLLE, Olivier (32 avenue Kléber, Colombes, FR)
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