What change was made to BGP to address the expected depletion of autonomous system numbers?
- the ability to incorporate hierarchical network design
- the use of a 2-octet autonomous system number
- the use of a 4-octet autonomous system number
- the ability to use RFC 1918 address space
Explanation: Autonomous system number (ASN) was originally 2 bytes (16-bit range) long, which made 65,535 ASNs possible. Due to exhaustion, RFC 4893 expanded the ASN field to accommodate 4 bytes (32-bit range). This allows for 4,294,967,295 unique ASNs.
Exam with this question: Quiz - BGP
Exam with this question: Chapter 11: Quiz - BGP CCNPv8 ENARSI
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