公开(公告)号：US20190222471A1

公开(公告)日：2019-07-18

申请号：US16359847

申请日：2019-03-20

Applicant: Cisco Technology, Inc.

Inventor： Konstantin LIVANOS ,  Ian McDowell CAMPBELL ,  Charles C. WOLFINGER

IPC: H04L12/24 ,  H04W4/24 ,  H04L12/14 ,  H04L12/26 ,  H04M15/00 ,  H04W24/04

CPC classification number: H04L41/0668 ,  H04L12/1407 ,  H04L41/046 ,  H04L43/0805 ,  H04L43/0817 ,  H04L61/203 ,  H04M15/00 ,  H04M15/57 ,  H04M15/66 ,  H04M15/8228 ,  H04W4/24 ,  H04W24/04 ,  H04W88/16

Abstract: A method is provided in one example embodiment and may include maintaining, by a Diameter Routing Agent (DRA), an availability status for a plurality of network elements; receiving a request associated with a user equipment (UE) session, wherein a first network element of the plurality of network elements is serving the UE session; determining that the first network element serving the UE session is unavailable; and re-establishing the UE session at a second network element of the plurality of network elements that is available, wherein the re-establishing is performed without terminating the UE session.

公开(公告)号：US20190037445A1

公开(公告)日：2019-01-31

申请号：US16151228

申请日：2018-10-03

Applicant: Cisco Technology, Inc.

Inventor： Konstantin LIVANOS ,  Ian McDowell CAMPBELL

IPC: H04W28/08 ,  H04W28/02 ,  H04L12/801 ,  H04L12/14 ,  H04M15/00 ,  H04L12/26 ,  H04W4/24

Abstract: A method is provided in one example embodiment and may include receiving load information for a plurality of cells of a Radio Access Network (RAN); determining, for each of a plurality of user equipment (UE) in each cell, identification information for each UE and an Access Point Name (APN) to which each UE is connected; identifying, from a plurality of policy servers, each policy server that serves each APN to which each UE in each cell of the plurality of cells is connected; and sending, to each of a particular policy server, congestion information comprising: an identity for each cell having UE that are connected to each APN served by the particular policy server; the corresponding congestion level for each of the cells; and a per-cell UE list identifying each of a plurality of UE connected to each of APNs served by the particular policy server.

公开(公告)号：US20190124013A1

公开(公告)日：2019-04-25

申请号：US15791616

申请日：2017-10-24

Applicant: Cisco Technology, Inc.

Inventor： Prasannakumar MURUGESAN ,  Ajeet Pal Singh GILL ,  Aeneas Sean DODD-NOBLE ,  David A. JOHNSON ,  Ian McDowell CAMPBELL

IPC: H04L12/851 ,  H04L12/721

CPC classification number: H04L47/2483 ,  G06F13/00 ,  G06F13/128 ,  H04L45/38

Abstract: In accordance with various implementations, a method is performed at a data plane node with one or more processors, non-transitory memory, and a control interface between a network function module associated with the data plane node and a switch associated with the data plane node. The method includes determining whether an offload capability is available for a data flow received at an ingress network interface of the data plane node. The method also includes determining whether the data flow satisfies offload criteria in response to determining that the offload capability is available. The method includes bypassing the network function module associated with the data plane node and providing the data flow to at least one of the switch associated with the data plane node or an egress network interface associated with the data plane node in response to determining the offload capability is available and the offload criteria is satisfied.