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HP0-Y43 · Question #33

View the exhibit. All switches in this figure are HP Provision ASIC switches. They are enabled to establish adjacency with neighbors on all of their VLAN interfaces. Besides these configurations…

The correct answer is E. Set its reference bandwidth to 10000. (You have to modify the reference Value to change OSPF calculations, and choose the 10G link) By default, an interface's OSPF cost is based on the port speed of the interface. The cost is dividing the reference bandwidth by the port speed. The default reference bandwidth is 100…

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Question

View the exhibit. All switches in this figure are HP Provision ASIC switches. They are enabled to establish adjacency with neighbors on all of their VLAN interfaces. Besides these configurations, they are operating at the default OSPF settings. How can a network administrator ensure that routing switch B uses the 10G link to reach 10.1.10.0/24 if its direct link to routing switch A fails?

Exhibit

HP0-Y43 question #33 exhibit

Options

  • ASet the VLAN 103 OSPF cost to 10.
  • BSet the VLAN 100 bandwidth to 10000.
  • CSet the VLAN 100 OSPF cost to 10.
  • DSet the VLAN 103 bandwidth to 1000.
  • ESet its reference bandwidth to 10000.

How the community answered

(56 responses)
  • A
    2% (1)
  • B
    7% (4)
  • C
    2% (1)
  • D
    5% (3)
  • E
    84% (47)

Explanation

(You have to modify the reference Value to change OSPF calculations, and choose the 10G link) By default, an interface's OSPF cost is based on the port speed of the interface. The cost is dividing the reference bandwidth by the port speed. The default reference bandwidth is 100 Mbps, which results in the following default costs: * 10 Mbps port ?10 * All other port speeds ?1 The software uses the following formula to calculate the cost: Cost = reference-bandwidth/interface-speed

Topics

#OSPF reference bandwidth#link cost#path selection#routing failover

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