1. D-Link TSD 2009 workshop 1 Outbound Route Load Balancing

2. D-Link TSD 2009 workshop 2 Outbound Route Load Balancing Overview What is Outbound Route Load Balancing How to deploy the RLB Function RLB Behaviors RLB Algorithms Hands-on Setting and debugging Q&A Outline

3. D-Link TSD 2009 workshop 3 What is Outbound Route Load Balancing ? Outbound Route Load Balancing is the ability to distribute traffic over multiple routes based on a number of predefined distribution algorithms. ISP1 ISP2 WAN1 WAN2 0.0.0.0/0  wan1, Metric=10 0.0.0.0/0  wan2, Metric=20 MAIN Routing Table Google

4. D-Link TSD 2009 workshop 4 How to deploy Outbound RLB Manual add identical routing entries. Enable RLB.

5. D-Link TSD 2009 workshop 5 Manually add identical routing entries for RLB. ISP2 WAN1: IP:1.1.1.1/24 GW:1.1.1.2 WAN2: IP:3.3.3.1/24 GW:3.3.3.2 ISP1

6. D-Link TSD 2009 workshop 6 Enable RLB.

7. D-Link TSD 2009 workshop 7 Outbound RLB behaviors RLB engine auto lookup the identical routing entries. RLB engine grouping the identical routing entries into RLB engine. RLB engine using specify algorithm to design traffic go which way. Outbound RLB Flowchart

8. D-Link TSD 2009 workshop 8 Auto lookup the identical routing entries in the routing table. Identical routing entires Identical routing entries

9. D-Link TSD 2009 workshop Outbound RLB Engine 9 Grouping the identical destination routing entries into RLB engine. Group 1 Group 2

10. D-Link TSD 2009 workshop 10 Using specified algorithm to design traffic go which way. ISP1 ISP2 WAN1 WAN2 Google RLB Group RLB

11. D-Link TSD 2009 workshop 11 Outbound RLB Flowchart Outgoing traffic Lookup dst-network in main routing table Matching RLB routing entries Yes No Yes Dropped by “Default Access Rule” No RLB Algorithm WAN1 WAN2 Interface src_IPsrc-_IFdestinationdest-_IF 192.168.1.9lan1http://google Outbound Route Load Balancing Engine WAN1 or WAN2

12. D-Link TSD 2009 workshop 12 Outbound Route Load Balancing Algorithms Round Robin Algorithm Destination Algorithm Spillover Algorithm

13. D-Link TSD 2009 workshop 13 Round Robin Algorithm Successive routes are chosen from the matching routes in a Randomly. If the matching routes have unequal metric, then routes with lower metric are triggered more often. Outgoing traffic RLB Round Robin Algorithm MAIN Routing Table M=10 WAN1 WAN2 M=20

14. D-Link TSD 2009 workshop 14 The restriction Of Round Robin Algorithm RLB Round Robin Algorithm M=10 WAN1 WAN2 M=20 SSL Server SSL Client

15. D-Link TSD 2009 workshop 15 Destination Algorithm Destination is similar to Round Robin, but provides the “stickiness” The unique destination IP addresses always get the same route from a lookup Outgoing traffic RLB Destination Algorithm MAIN Routing Table M=10 WAN1 WAN2 Destination Stickiness Table 1. Face book  wan2 2. Google  wan1 Google Face book To Google To Face Book To Face Book To Google

16. D-Link TSD 2009 workshop 16 Destination Algorithm How to setup the Round Robin and Destination Algorithms

17. D-Link TSD 2009 workshop 17 Spillover Algorithm The first matching route's interface is repeatedly used until the Spillover Limits of that route's interface are exceeded for the Hold Timer. Outgoing traffic RLB Spillover Algorithm MAIN Routing Table M=10 M=20 WAN1 WAN2 Spillover Parameters * Utilization Limit: 1Mbps * Hold Time: 10 Seconds

18. D-Link TSD 2009 workshop 18 Spillover Algorithm How to setup the spillover algorithm

19. D-Link TSD 2009 workshop 19 Spillover Algorithm How to setup the spillover algorithm

20. D-Link TSD 2009 workshop 20 Route Load Balancing Algorithm Reset After Net-Defends firewall reconfiguration/reboot. After a high availability failover.

21. D-Link TSD 2009 workshop Hands On 21

22. D-Link TSD 2009 workshop Example of Route Load Balancing 22 ISP1 ISP2 WAN1: IP:1.1.1.1/24 GW:1.1.1.2 PC1: 192.168.1.50 LAN: 192.168.1.1/24 PC2: 192.168.1.101 WAN2: IP:3.3.3.1/24 GW:3.3.3.2 HTTP/FTP server 5.5.5.5 Objective: 1.There are two Internet links, ISP1 and ISP2. All traffic is outgoing via ISP1 and ISP2 load balancing. 2.Try to configure the RLB instance objects to Round Robin/Destination/Spillover, to check what’s difference between each other.

23. D-Link TSD 2009 workshop Example of Route Load Balancing 23 1 Set the object of IP4 address 2 Add two default route

24. D-Link TSD 2009 workshop Example of Route Load Balancing 24 3 Add wan1, wan2 Interface Group 4 Add a IP-Rule entry

25. D-Link TSD 2009 workshop Example of Route Load Balancing 25 5 Add a Round Robin or Destination Route Load Balancing Instance. Check the RLB status.

26. D-Link TSD 2009 workshop Example of Route Load Balancing 26 6 Add a Spillover Load Balancing Instance

27. D-Link TSD 2009 workshop Example of Route Load Balancing 27 7 Add a Spillover Settings

28. D-Link TSD 2009 workshop Thank you 28