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4A0-102 · Question #72

Which of the following commands would correctly configure the confederation AS number as 65200 with a member AS of 65202?

The correct answer is A. config>router> confederation 65200 members 65202. Option A correctly places the confederation command under config>router> - the router context - rather than the BGP sub-context, and lists the confederation AS (65200) first, followed by the member AS (65202), which matches the required syntax for platforms like Nokia SR OS…

BGP Configuration

Question

Which of the following commands would correctly configure the confederation AS number as 65200 with a member AS of 65202?

Options

  • Aconfig>router> confederation 65200 members 65202
  • Bconfig>router>bgp> confederation 65200 members 65202
  • Cconfig>routers> confederation 65202 members 65200
  • Dconfig>router>bgp> confederation 65202 members 65200

How the community answered

(25 responses)
  • A
    80% (20)
  • B
    4% (1)
  • C
    12% (3)
  • D
    4% (1)

Explanation

Option A correctly places the confederation command under config>router> - the router context - rather than the BGP sub-context, and lists the confederation AS (65200) first, followed by the member AS (65202), which matches the required syntax for platforms like Nokia SR OS.

Why the distractors fail:

  • B uses the correct AS values but is placed under config>router>bgp> - confederation is a router-level setting, not a BGP sub-context setting.
  • C misspells the hierarchy as config>routers> (plural), and also swaps the AS values, putting the member AS first.
  • D is in the wrong context (config>router>bgp>) and has the AS values reversed - 65202 as the confederation and 65200 as the member, which is backwards.

Memory tip: Think of "confederation before members, router before BGP." The confederation AS (the big umbrella number) is declared at the router level, not buried inside BGP, and the confederation number always precedes the member list - just like an umbrella organization is listed before its sub-groups.

Topics

#BGP Confederation#AS Configuration#Nokia Router CLI#Confederation Syntax

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