Exam 300-630 topic 1 question 52 discussion

Correct B

B is corect. - . The local pod anycast node is preferred by the local spines. Reference Active-active firewall cluster stretched across separate pods Section on Cisco ACI Multi-Pod and Service Node Integration White Paper. https://www.cisco.com/c/en/us/solutions/collateral/data-center-virtualization/application-centric-infrastructure/white-paper-c11-739571.html#Activeactivefirewallclusterstretchedacrossseparatepods The specific MAC/IP combination is only learned on the leaf nodes where the firewall nodes (anycast service) are directly attached; those leaf nodes then send a COOP update to the spines. From the spine nodes, the path to local attached anycast entry is always preferred. In case of a failure of all local service cluster nodes, the backup path to another pod is chosen.

B local pod anycast node is preferred by the local spines. That is what we want, we dont want for local fabric to direct traffic to another pod without a reason, instead we should try to always use local device, especially in terms of security filtering devices like firewalls.