Refer to the exhibit.
The network administrator is seeing N7K-1 having issues with VLAN 11, and interface VLAN 11 is resetting, causing frequent HSRP state changes. Which two actions would reduce HSRP state changes? (Choose two.)
A. On N7K-1, configure the HSRP extended hold timer to 180, extending the HSRP hello message hold time.
B. On N7K-2, configure the HSRP extended hold timer to 180, extending the HSRP hello message hold time.
C. On N7K-1, configure the pre-empt delay minimum to 180 in order to delay N7K-1 from taking over as the HSRP active router.
D. On N7K-2, configure the pre-empt delay minimum to 180 in order to delay N7K-2 from taking over as the HSRP active router.
E. On N7K-2, increase the HSRP priority to 150.
F. On N7K-2, decrease the HSRP priority to 50.
Correct Answer: CE
Explanation/Reference:
Explanation:
The odd number VLANs are active on N7K1-AGG1 while even number VLANs are active on N7K2-AGG2. This is done by configuring a higher HSRP priority on the Active HSRP interface. The Active HSRP router will respond to the ARP requests so alternating the priority configuration helps to share the control plane load. Default HSRP hello and hold timers are used in this configuration. Since HSRP is vPC aware, the aggressive hello and hold timers do not offer any benefit on the Nexus 7000. In addition, the dual-active exclude interface-VLAN configuration with vPC+ also removes the dependency on fast hellos to learn HSRP MAC address in the access-edge layer.
Reference: http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Data_Center/VMDC/3-0/IG/VMDC_3-0_IG.pdf (page 41, FHRP with HSRP)