300-510 SPRI: Implementing Cisco Service Provider Advanced Routing SolutionsDemo

By Cisco · Question Mode

QuestionQ192

Routing Policy and Manipulation

Layer 3 switch SW1 belongs to an EIGRP-enabled network at the edge of an area. Cisco Express Forwarding and SSO are enabled on the router. A network engineer needs to minimize downtime for data-transit services in the network. HSRP group 2 is already configured with standby preempt delay minimum 2 and standby timers 140. What additional action must the engineer take on SW1 to suppress routing flaps for 2 minutes?

  • A Configure timers standby 2 wait 2 under the HSRP group 2 configuration.
  • B Configure timers standby 2 converge 120 under the HSRP group 2 configuration.
  • C Configure timers nsf route-hold 120 under the global EIGRP configuration.
  • D Configure timers nsf signal 2 under the global EIGRP IPv4 address family.
Explanation

The EIGRP NSF timers nsf route-hold 120 setting makes an NSF-aware EIGRP router retain routes for an inactive peer for 120 seconds during a switchover or known failure condition, preventing route withdrawals and resulting routing flaps during that interval. HSRP timers do not control EIGRP route retention.

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