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Akhtar_109015's avatar
Akhtar_109015
Icon for Nimbostratus rankNimbostratus
Oct 05, 2013

High Availability Best Practices

Hi, I have configured device groups with both options 'SYNC-FAILOVER & SYNC-ONLY', & a traffic group; config sync & failover seems to be working fine. I want to know is there any thing else like vlan/gateway/system failsafe or HA group which should also be considered ?

 

What is the best practice option for failover to work properly? I feel VLAN failsafe based failover will be bit slow because it will check the traffic flowing and then ARPs the gateway etc etc which takes time...

 

Akhtar

 

availability
deployment
design
fail over
high availability

2 Replies

  • What_Lies_Bene1's avatar
    What_Lies_Bene1
    Icon for Cirrostratus rankCirrostratus
    Oct 06, 2013

    Essentially, at present it a choice between a HA group (based on link status etc.) or failsafe. I could be wrong but I believe failover is the most popular choice. Of course, you can use all three; VLAN, Gateway and System and I'd recommend you do. That pretty much covers almost all issues (other than a single link in a channel failing).

     

  • rob_carr's avatar
    rob_carr
    Icon for Cirrocumulus rankCirrocumulus
    Oct 06, 2013

    "What is the best practice option for failover to work properly? I feel VLAN failsafe based failover will be bit slow because it will check the traffic flowing and then ARPs the gateway etc etc which takes time..."

     

    You only really need to use VLAN failsafe if the devices in your high availability configuration are connected to different switches/routers, so check the physical layout of your network before deciding to implement this feature.