CCIE Routing & Switching Question of the Week: Outbound BGP

September 5, 2014 Johnny Bass Cisco, Cloudera, Featured, Professional Development, Project Management, Routing & Switching, Technology, Training in Business

What is the order of preference of filtering for border gateway protocol (BGP) outbound?

A. Prefix list or distribute list, filter list, route maps
B. Filter list, route maps, prefix list or distribute list
C. Route maps, filter list, prefix list or distribute list
D. Filter list, prefix list or distribute list, route maps
E. Route maps, prefix list or distribute list, filter list
F. Prefix list or distribute list, route maps, filter list

Reveal Answer

Answer: B.

According to Cisco, the filtering begins through a AS path filter list, followed by a route map and then through the prefix list or distribute list. This is per the BGP FAQ page on Cisco.com.

CCIE Routing & Switching Question of the Week Series

CCIE Routing & Switching Question of the Week: Inbound BGP
CCIE Routing & Switching Question of the Week: IS-IS
CCIE Routing & Switching Question of the Week: Outbound BGP

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