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JN0-102 · Question #105

Which command displays the egress interfaces selected on the PFE for destination prefixes?

The correct answer is A. show route forwarding-table. The show route forwarding-table command displays the contents of the Packet Forwarding Engine's (PFE) forwarding table, showing the egress interfaces and next-hop information for destination prefixes.

Operational Monitoring and Maintenance

Question

Which command displays the egress interfaces selected on the PFE for destination prefixes?

Options

  • Ashow route forwarding-table
  • Bshow route table
  • Cshow route table extensive
  • Dshow pfefwdd

How the community answered

(47 responses)
  • A
    91% (43)
  • B
    2% (1)
  • C
    4% (2)
  • D
    2% (1)

Why each option

The `show route forwarding-table` command displays the contents of the Packet Forwarding Engine's (PFE) forwarding table, showing the egress interfaces and next-hop information for destination prefixes.

Ashow route forwarding-tableCorrect

The `show route forwarding-table` command provides information about the routes that are installed in the Packet Forwarding Engine (PFE) and are actively used for forwarding traffic. This output specifically includes the next-hop information, which details the egress interfaces selected for destination prefixes.

Bshow route table

`show route table` displays routes in the routing table (RIB) on the Routing Engine (RE), not the forwarding table on the PFE.

Cshow route table extensive

`show route table extensive` provides detailed information about routes in the routing table, similar to `show route table`, but does not focus on the PFE's forwarding decisions.

Dshow pfefwdd

`show pfefwdd` is not a standard Junos OS command for displaying the forwarding table.

Concept tested: Junos PFE forwarding table display command

Source: https://www.juniper.net/documentation/us/en/software/junos/routing-basics/topics/ref/command/show-route-forwarding-table.html

Topics

#operational commands#forwarding table#PFE#egress interface

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