Method of performing an intra-segment handover

A technology of internal switching and switching, which is applied in the field of switching to improve network performance and scalability, reduce a large number of control services, and avoid delays
CN102369766AInactive Publication Date: 2012-03-07ALCATEL LUCENT SAS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ALCATEL LUCENT SAS
Publication Date
2012-03-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention concerns a method of performing an intra-segment handover (HO) of a mobile station (MS) from a source access point (AP1) of a tree- structured segment (S1) of an Ethernet-compliant telecommunication network to a target access point (AP2) of said segment (S1), as well as a switch (SW-123) to support the execution of this method. After establishing contact between the mobile station (MS) and the target access point (AP2), the mobile station (MS) sends an update entry request addressed to the segment gateway switch (GW). The update entry request is received by a switch (SW-123) positioned in the tree structure of the segment (S1) hierarchically above the source and target access points (AP1, AP2) and below the segment gateway switch (GW). The switch (SW-123) checks whether its forwarding database contains a first entry comprising an address of the mobile station (MS) received by means of the update entry request. If the forwarding database of the switch (SW-123) contains the first entry, the switch (SW-123) squelches said update entry request and assumes the function of an anchor switch regarding the handover (HO), whereby the anchor switch is a switch of the segment (S1) which is positioned in the tree structure of the segment (S1) hierarchically above the source and target access points (AP1, AP2) and below the segment gateway switch (GW) and which is common to the ongoing session before and after the handover (HO).
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Description

technical field

[0001] The invention relates to a method of performing an intra-segment handover of a mobile station from a source access point of a tree-structured segment of an ethernet compliant telecommunication network to a target access point of said segment, and in A switch in a segment used in the method. Background technique

[0002] An important aspect in mobile networks is the handover of a mobile terminal between two access points. The handover process generates a large amount of control data that needs to be sent over the network to update other network resources.

[0003] M.Kuroda, M.Inoue, A.Okubo, T.Sakakura, K.Shimizu and F.Adachi in "Scalable Mobile Ethernet and Fast Vertical Switching" (IEEE Wireless Communications and Networking Conference (WCNC) 2004, 2004 3 Mobility management in Ethernet-based network architectures is described in . The flat Ethernet-based network architecture entering the mobile domain is subsumed under the term "Mobile Ethernet". ...

Claims

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