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Cloudstack Meetup T opic : Juniper Qfabric in Lab

Cloudstack Meetup T opic : Juniper Qfabric in Lab. Traditional UCS Architecture. Limitations. Limited Scalability Increased Latency Inefficient Resource Usage. Ref :http ://www.juniper.net/techpubs/en_US/junos11.4/topics/concept/qfabric-overview.html. Qfabric Basic Principle .

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Cloudstack Meetup T opic : Juniper Qfabric in Lab

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  1. CloudstackMeetupTopic : Juniper Qfabric in Lab

  2. Traditional UCS Architecture

  3. Limitations • Limited Scalability • Increased Latency • Inefficient Resource Usage Ref :http://www.juniper.net/techpubs/en_US/junos11.4/topics/concept/qfabric-overview.html

  4. Qfabric Basic Principle • Flat architecture • Offers scale and flexibility • Entire system managed as single entity • Separation of Control and data plane

  5. Arch Diag http://thinkjunos.typepad.com/think-junos/juniper/

  6. Components of Qfabric • Node device • Interconnect Device • Director device • Controlplane switches Ref : http://www.juniper.net/us/en/local/pdf/whitepapers/2000443-en.pdf

  7. Nodedevices • Connection to server nodes, storage nodes or external network • Similar to TOR switches in traditional datacenters Ref : http://www.juniper.net/us/en/local/pdf/whitepapers/2000443-en.pdf

  8. Node Groups • Server Node Group: • Connects to Server • Runs host facing protocol : LACP, LLDP, ARP • Redundant Server Node Group: • Connects to Server and runs LACP, LLDP, ARP • Used for resilience ( runs BPDU guard and storm control) • Network Node Group • Runs L2 and L3 protocols(STP, OSPF, BGP) • Typically connects to routers, switches and firewalls

  9. Interconnect Devices • Connects all the Node Devices • Data traffic sent between node devices travels through Interconnect devices. Ref : http://www.juniper.net/us/en/local/pdf/whitepapers/2000443-en.pdf

  10. Director Devices • Used to manage, monitor and maintain the Qfabric system. • Connected in pair to form Director Group • Each device runs Juniper OS. Ref : http://www.juniper.net/us/en/local/pdf/whitepapers/2000443-en.pdf

  11. Control Plane Switches • Supports control plane network which facilitates the control and management communication • Separate from the data plane • Discovery, route management, exchange reachability information happen over control plane. Ref : http://www.juniper.net/us/en/local/pdf/whitepapers/2000443-en.pdf

  12. Connections • Control Plane Connection: • Node Device <=> EX switch • Director Device <=> EX Switch • Interconnect <=> Ex Switch • Data Plane Connections: • Interconnect <=> Node Device [ 40Gb QSFP+ fabric uplink ports] • Node Device <=> System End points [ Supports several options 1GbE, 10 GbE, 2,4,8 Gb FC] Ref : http://www.juniper.net/us/en/local/pdf/whitepapers/2000443-en.pdf

  13. DG Routing Engines • Fabric Manager Routing Engine • Discovers and provisions system components • Discovers and calculates paths between ND’s • Creates and maintains db of system components • NNG Routing Engine • Performs routing operations • Fabric Control Routing Engine • Distributes routing information through Fabric Control Protocol(based on BGP). Ref : http://www.juniper.net/us/en/local/pdf/whitepapers/2000443-en.pdf

  14. Lab Env

  15. Q & A

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