SSR HA or high Availability and Failure Scenarios

Owned by Jean-luc KRIKER
Last updated: Apr 13, 2023
1 min read


01- HA High Availability


https://docs.128technology.com/docs/concepts_ha_theoryofoperation/#dual-node-high-availability

https://docs.128technology.com/docs/config_ha/

https://www.juniper.net/documentation/us/en/software/session-smart-router/docs/concepts_ha_theoryofoperation/#modeling


  • Dual Nodes Vs Dual Routers  HA
  • Active/Standby Model ( SSR are a mirror images of one another , using 2x redundancy-group )
  • Active/Standby Model with Fabric Interface  ( redundancy-group configuration is no longer mandatory )
  • Active/Active Model  : leverage the best ISP path, true SDWAN.   (e.g., node 1 uses ISP 1, node 2 uses ISP 2) , + Fabric interface to use both ISPs
  • Hybrid Model:   some LAN/WAN are protected, some not. 


RG is per Node not accross Nodes!!!