Description and cases [Документация VAS Experts]

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en:dpi:load_balancer:description:start [2024/08/16 12:40] – created elena.krasnobryzhen:dpi:load_balancer:description:start [Unknown date] (current) – removed - external edit (Unknown date) 127.0.0.1
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-======Description and cases====== 
-The SSG can act as a traffic balancer based on IP addresses belonging to an AS defined as ''local'' in ''asnum.dscp''.\\ 
-In this case, the SSG-LB acts as an L2-bridge in the network, hence the name L2 traffic balancer. 
-<note>DPI functionality does not work in this mode.</note> 
-=====Case: Balancer on a traffic mirror===== 
-Suppose a 400Gbps traffic mirror needs to be evenly distributed among four VAS platforms (Value-Added Services) performing traffic analysis and various detection.\\ 
-In this case, SSG-LB will evenly distribute traffic with equal port utilization on the pullers and maintain traffic symmetry (traffic from one session will be directed to only one puller). 
  
-{{ :en:dpi:load_balancer:load_balancer.png?450 |}} 
-**Example configuration /etc/dpi/fastdpi.conf:** 
-  * Traffic mirroring is fed into 4x100G interfaces. 
-  * Traffic is balanced between four pullers, each puller is connected by 4x25G links. 
-<code bash> 
-in_dev=05-00.0:05-00.1:05-00.2:05-00.3 
-out_dev=01-00.0:01-00.1:01-00.2:01-00.3:02-00.0:02-00.1:02-00.2:02-00.3:03-00.0:03-00.1:03-00.2:03-00.3:04-00.0:04-00.1:04-00.2:04-00.3 
- 
-#FastDPI Control 
-ctrl_port=29000 
-ctrl_dev=lo 
- 
-#Turn on Load Balancing 
-enable_l2_lb=1 
- 
-#Balance algorithm 
-maglev=2 
- 
-#Hash table 
-lb_hash_out_dev_type=1 
- 
-</code>