Virtualized EPC integrated with SDN Contact: Dr

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Presentation transcript:

Virtualized EPC integrated with SDN Contact: Dr Virtualized EPC integrated with SDN Contact: Dr. Jose Costa-Requena (jose.costa@aalto.fi)

Test bed virtualized EPC Virtualized EPC (vEPC): UE = Samsung LTE dongles eNodeB = Nokia commercial eNodeB MME = Own implementation S/PGW = Open Source implementation Nokia eNodeB UE LTE dongle © 2013 EIT ICT Labs

Testbed virtualized EPC & SDN backhaul Virtualized EPC (vEPC): UE = Samsung LTE dongles eNodeB = Nokia commercial eNodeB MME = Own implementation S/PGW = Open Source implementation SDN (backhaul) = Alix switches with OpenFlow 1.3) CES switch Nokia eNodeB UE LTE dongle © 2013 EIT ICT Labs

Virtualized EPC migration across data centers Virtualized EPC (vEPC): UE = Samsung LTE dongles eNodeB = Nokia commercial eNodeB MME = Own implementation S/PGW = Open Source implementation SDN (backhaul) = Alix switches OPF 1.3 Migration over Openstack CES switch Nokia eNodeB UE LTE dongle © 2013 EIT ICT Labs

VLAN mapping conecting data centers

VNF Live Migration Live migration = move a VM from a host to another while it runs Example use cases Clear a failing host Empty a host for maintenance Move instances to balance load OpenStack supports live migration via additional configuration We studied the effects on migrating a VNFs with KVM hypervisor within an OpenStack cloud deployment

MME Live Migration MME Ping the active MME instance from a VM inside the testbed with 1ms interval Measure packet loss and delays during live migration Results Packet loss range from 3 to 20 packets With low packet loss, the response delay up to 150ms

S-/P-GW Live Migration The GW on the data transfer path Measure the effects during an active file transfer Metric: TCP throughput during live migration Downtime varies between 0.2 and 2 seconds Worse case scenario 2 second gap in all data transfer

Next steps Extend the testbed with new commercial eNodeB Replace backhaul based on Alix switches into higher performance switches Performance testing with video streaming to overload the network Test handover scenarios and migration with high load

THANKS!