technical work stream: hosttracker

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Technical Work Stream: HostTracker

May 20th, 2013

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Outline Quickly Review Colin’s HostTracker porting proposal Stepping back – what does this code do?

Intended deployment Coupling between HostTracker, Topology, and Forwarding IStorageSource is for inter-controller communication

Big Open Questions Lots of pictures – fewer slides

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Great Step for Phase 1 Create Stubs for Dependencies

TopologyManager IStorageSource, HA Role Changes

Let’s understand what Phase1 gets us HostTracker confused by tunnels, Non-OF

topologies, virtualization, switch-level HA Plan Phase 2+ to bring these back in

Review of Colin’s HostTracker

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Non-OF Aggregation Network

Intended Deployment

Non-OF ToR Non-OF ToR Non-OF ToR

VSwitch

VSwitch

VSwitch

VSwitch

VSwitch

VSwitch

VSwitch

VSwitch

VSwitch

DiskDiskDisk

RouterRouter

L2-over-L3Tunnels

between all vswitches

(not all shown)

BcastPktBcast

Pkt

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Multiple paths between all points Tunnel vs. non-tunnel

Mixed OpenFlow and non-OpenFlow Multiple broadcast “brains” play together Requirement: All devices are not VMs

Managing broadcast domains is a pain Correspondingly, HostTracking is a pain

Topology Implications

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Do we support both interfaces? IDeviceManager and SAL’s HostTracker?

Gets back to event ordering

Big Open Questions