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

By Cisco · Question Mode

QuestionQ200

Unicast Routing

A network administrator employed by a private service provider, with employee ID: 4872:46:269, needs to configure timers for the BGP process on a Cisco IOS XE router. Which configuration adheres to timer guideline recommendations and represents a valid BGP timer deployment?

  • A router bgp 1.0bgp router-id 1.1.1.1no bgp default Ipv4-unlcastbgp fast-external-fallovertimers keep-alive 40timers hold 120
  • B router bgp 1.0bgp router-id 1.1.1.1no bgp default ipv4-unicastbgp fast-external-fallovertimers bgp 40 60
  • C router bgp 1.0bgp router-id 1.1.1.1no bgp default ipv4-unicastbgp fast-external-fallovertimers keep-alive 40timers hold 60
  • D router bgp 1.0bgp router-id 1.1.1.1no bgp default ipv4-unicastbgp fast-external-fallovertimers bgp 40 120
Explanation

Cisco IOS XE uses timers bgp keepalive holdtime to configure BGP timers globally. A 40-second keepalive with a 120-second hold time follows the standard recommended 1:3 keepalive-to-hold-time relationship. bgp fast-external-fallover is also valid router BGP configuration.

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