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Gajji's avatar
Gajji
Icon for Cirrostratus rankCirrostratus
Feb 16, 2021

Please confirm if below scenario is feasible

Please confirm if below scenario is feasible( check if we can define LB vip in the backend pool under another VIP).

VIP 1 and VIP 2 both will have VIP 3 as a pool member.

application delivery
BIG-IP
LTM
  • Rodrigo_Albuque's avatar
    Rodrigo_Albuque
    Feb 16, 2021

    If VIP 3 is hosted in a different BIG-IP it should work.

     

    However, if it's in the same box, it's unlikely to work:

     

    "BIG-IP does not respond to its own Address Resolution Protocol (ARP) requests for locally-hosted virtual server addresses, and thus is unable to establish a network connection to a locally-hosted virtual server. As a result, if you add a locally-hosted virtual server to a BIG-IP load balancing pool, no traffic will ever be sent to that pool member, as it is not possible for the system to load balance traffic to that pool member."

     

    K10379: A local virtual server IP address cannot be used as a pool member

    https://support.f5.com/csp/article/K10379

     

     

  • Rodrigo_Albuque's avatar
    Rodrigo_Albuque
    Icon for MVP rankMVP
    Feb 16, 2021

    If VIP 3 is hosted in a different BIG-IP it should work.

     

    However, if it's in the same box, it's unlikely to work:

     

    "BIG-IP does not respond to its own Address Resolution Protocol (ARP) requests for locally-hosted virtual server addresses, and thus is unable to establish a network connection to a locally-hosted virtual server. As a result, if you add a locally-hosted virtual server to a BIG-IP load balancing pool, no traffic will ever be sent to that pool member, as it is not possible for the system to load balance traffic to that pool member."

     

    K10379: A local virtual server IP address cannot be used as a pool member

    https://support.f5.com/csp/article/K10379