公开(公告)号：ZA201307533B

公开(公告)日：2015-01-28

申请号：ZA201307533

申请日：2013-10-09

Applicant: ERICSSON TELEFON AB L M

Inventor： BAILLARGEON STEVE ,  JOHNSSON ANDREAS ,  EKELIN SVANTE ,  FLINTA CHRISTOFER

IPC: H04L20060101

Abstract: According to one exemplary embodiment, a method for determining the forward and reverse available capacity or tight link capacity of an IP path from a single endpoint includes the steps of: transmitting, from a source IP endpoint node toward a destination IP endpoint node, a forward packet train including a first plurality of IP test packets over the forward IP path; and receiving, at the source IP endpoint node, a corresponding reverse packet train from the destination IP endpoint node, the reverse packet train including a second plurality of IP test packets over the reverse IP path each of which correspond to a respective one of the first plurality of IP test packets. For those IP path capacity measurements embodiments which are TWAMP-based, no changes are needed to the TWAMP control protocol because padding octets are used to transfer additional information, specifically a rate at which the destination endpoint node is to transmit said second plurality of packets, which information is used for available IP path capacity and tight IP link capacity calculations.

公开(公告)号：AT528886T

公开(公告)日：2011-10-15

申请号：AT04749103

申请日：2004-06-30

Applicant: ERICSSON TELEFON AB L M

Inventor： FLINTA CHRISTOFER ,  MANGS JAN-ERIK ,  WESTBERG LARS

IPC: H04L12/46 ,  H04L12/24

Abstract: Information about virtual private networks—VPNs—in each domain of a multi-domain communications system is provided. By comparing a request for a configuration of a VPN with the provided information of other connected domains, a match can be found. VPN configuration can then be performed based on the outcome of the match. The provided domain VPN information is in one embodiment spread to other domains under constrictions put by SLAs between domain operators. The spreading of VPN information can be performed regularly or triggered by an external event. In another embodiment, the VPN configuration request is instead spread to different domains.

公开(公告)号：AU2008350375A1

公开(公告)日：2009-08-20

申请号：AU2008350375

申请日：2008-02-14

Applicant: ERICSSON TELEFON AB L M

Inventor： FLINTA CHRISTOFER ,  MANGS JAN-ERIK ,  EKELIN SVANTE ,  MELANDER BOB

IPC: H04L12/18 ,  H04N7/24

Abstract: The present invention relates to methods and arrangements to optimize bandwidth usage in a Multicast Services Control System (MSCS) for digital information transport. The system comprises a service provider (Server) and service receivers (STB1-STB5) able to receive multicast streams from the service provider along multicast trees in an IP network (A/MNW). The method comprises the following steps: —A multicast join is performed by the service receivers to a multicast group associated with the service of interest provided by the service provider. —Bandwidth is measured on paths in a joined multicast tree. —Each of the service receivers (STB1-STB5) join an optimal multicast group (D1, D2, D3), which joining is based on the measurements.

公开(公告)号：GB2455473A

公开(公告)日：2009-06-17

申请号：GB0906190

申请日：2006-09-15

Applicant: ERICSSON TELEFON AB L M

Inventor： FLINTA CHRISTOFER ,  ERIKSSON ANDERS ,  NGS JAN-ERIK M

IPC: H04L29/12

Abstract: A method and arrangement for enabling communication with a client device (B) by making a currently valid communication address of the device publicly available. The client device sends a freely composed connectivity key (304) to a publicly available connectivity server (300), the connectivity key being searchable by means of web searching using a search engine (302). The client device also sends connectivity parameters (306) to the connectivity server including at least the communication address, which then becomes publicly available in the connectivity server by web searching of the associated connectivity key. If a new currently valid communication address is obtained for the client device, the connectivity parameters can be updated by sending the new communication address to the connectivity server.

公开(公告)号：BRPI0418936A

公开(公告)日：2007-11-27

申请号：BRPI0418936

申请日：2004-06-30

Applicant: ERICSSON TELEFON AB L M

Inventor： FLINTA CHRISTOFER ,  MANGS JAN-ERIK ,  WESTBERG LARS

IPC: H04L12/46 ,  H04L12/24

Abstract: Information about virtual private networks—VPNs—in each domain of a multi-domain communications system is provided. By comparing a request for a configuration of a VPN with the provided information of other connected domains, a match can be found. VPN configuration can then be performed based on the outcome of the match. The provided domain VPN information is in one embodiment spread to other domains under constrictions put by SLAs between domain operators. The spreading of VPN information can be performed regularly or triggered by an external event. In another embodiment, the VPN configuration request is instead spread to different domains.

公开(公告)号：AU2005260198A1

公开(公告)日：2006-01-12

申请号：AU2005260198

申请日：2005-06-23

Applicant: ERICSSON TELEFON AB L M

Inventor： MANGS JAN-ERIK ,  FLINTA CHRISTOFER

IPC: H04L12/46 ,  H04L12/56

Abstract: Information about virtual private networks—VPNs—in each domain of a multi-domain communications system is provided. By comparing a request for a configuration of a VPN with the provided information of other connected domains, a match can be found. VPN configuration can then be performed based on the outcome of the match. The provided domain VPN information is in one embodiment spread to other domains under constrictions put by SLAs between domain operators. The spreading of VPN information can be performed regularly or triggered by an external event. In another embodiment, the VPN configuration request is instead spread to different domains.

公开(公告)号：AU2005260197A1

公开(公告)日：2006-01-12

申请号：AU2005260197

申请日：2005-06-23

Applicant: ERICSSON TELEFON AB L M

Inventor： MANGS JAN-ERIK ,  FLINTA CHRISTOFER

IPC: H04L12/46 ,  H04L12/56

Abstract: Information about virtual private networks—VPNs—in each domain of a multi-domain communications system is provided. By comparing a request for a configuration of a VPN with the provided information of other connected domains, a match can be found. VPN configuration can then be performed based on the outcome of the match. The provided domain VPN information is in one embodiment spread to other domains under constrictions put by SLAs between domain operators. The spreading of VPN information can be performed regularly or triggered by an external event. In another embodiment, the VPN configuration request is instead spread to different domains.

公开(公告)号：BRPI0822262A2

公开(公告)日：2015-06-23

申请号：BRPI0822262

申请日：2008-02-14

Applicant: ERICSSON TELEFON AB L M

Inventor： FLINTA CHRISTOFER ,  EKELIN SVANTE ,  MELANDER BOB ,  MÂNGS JAN-ERIK

IPC: H04L12/18 ,  H04N7/24

公开(公告)号：ZA201006419B

公开(公告)日：2011-12-28

申请号：ZA201006419

申请日：2010-09-07

Applicant: ERICSSON TELEFON AB L M

Inventor： EKELIN SVANTE ,  BERGFELDT ERIK ,  FLINTA CHRISTOFER ,  MELANDER BOB ,  MANGS JAN-ERIK ,  JOHNSSON ANDREAS

IPC: H04L20060101

Abstract: A system and method for determining end-to-end available bandwidth of a path in a packet-switched communication network. A multi-rate packet chirp injector injects probe traffic packets at different probing rates, u, into the network utilizing a probe chirp. A receiver samples time separation of the probe traffic packets to generate time-separation samples, which are used to calculate relative inter-packet separation strain, epsilon, samples at different probing rates. An Expectation-Maximization, EM, analyzer utilizes an EM algorithm to identify useful strain epsilon samples and to estimate parameters of a line l2 representing a direct linear relationship between the probing rate and the inter-packet separation strain epsilon at probing rates greater than a break point. A filter such as, for example, a Kalman filter then determines the available bandwidth of the network path based on the estimated parameters of the line l2.

公开(公告)号：GB2455473B

公开(公告)日：2011-03-23

申请号：GB0906190

申请日：2006-09-15

Applicant: ERICSSON TELEFON AB L M

Inventor： FLINTA CHRISTOFER ,  ERIKSSON ANDERS ,  NGS JAN-ERIK M

IPC: H04L29/12

Abstract: A method and arrangement for enabling communication with a client device by making a currently valid communication address of the device publicly available. The client device sends a freely composed connectivity key to a publicly available connectivity server, the connectivity key being searchable by means of web searching using a search engine. The client device also sends connectivity parameters to the connectivity server including at least the communication address, which then becomes publicly available in the connectivity server by web searching of the associated connectivity key. If a new currently valid communication address is obtained for the client device, the connectivity parameters can be updated by sending the new communication address to the connectivity server.