Forum Discussion

Thomas_McLean_1's avatar
Thomas_McLean_1
Icon for Nimbostratus rankNimbostratus
Feb 06, 2013

Failover cable

All,

 

I'm in the process of designing a move of a pair of LTM's to a seperate location in our DC - it's roughly 3.5 metres away.

 

I'm wondering if this scenario would work - unplug failover cable, move secondary F5 to new location then attach a 3metre RS232 cable to the now primary F5 unit and then do a force to standby and proceed to move the secondary system.

 

so to summarise - would a RS232 to RS232 cable work as a failover cable as a temporary measure?

 

Thanks for your assistance.

 

Thomas.

 

config
design
  • What_Lies_Bene1's avatar
    What_Lies_Bene1
    Icon for Cirrostratus rankCirrostratus
    Feb 06, 2013
    I think so;

    The F5 BigIP failover cable pinouts are as follows; 

    
        Pin Pin 
DTR 4 6 DSR
SG 5 5 SG
DSR 6 4 DTR
RTS 7 8 CTS
CTS 8 7 RTS

    The maximum recommended length is 50 feet (approximately 15meters.)
  • Thomas_McLean_1's avatar
    Thomas_McLean_1
    Icon for Nimbostratus rankNimbostratus
    Feb 07, 2013
    Thanks for that What Lies Beneath! Now lets hope everything goes smoothly at the weekend mate :)
  • What_Lies_Bene1's avatar
    What_Lies_Bene1
    Icon for Cirrostratus rankCirrostratus
    Feb 07, 2013
    Note: Where possible, Connection, Persistence and SNAT mirroring should be used to minimise the effects of failover and failback on client connections and traffic flow.
  • Thomas_McLean_1's avatar
    Thomas_McLean_1
    Icon for Nimbostratus rankNimbostratus
    Feb 07, 2013
    Posted By What Lies Beneath on 02/07/2013 02:42 AM

     

    Note: Where possible, Connection, Persistence and SNAT mirroring should be used to minimise the effects of failover and failback on client connections and traffic flow.

    I shall check that right now - but I'm sure when setting this up I done the above but best do it for sanity purposes really.

     

    Cheers agan and thanks for the add!