eIRM08: 4-Byte ASN
eIRM08: 4-Byte ASN
| Delivery | eLearning (this course is conducted online) |
|---|---|
| Duration | 1 hour |
| Level of Study | Intermediate |
This web class focuses on the definition of an Autonomous System (AS) number; the distribution and limitation of the 16-bit (2-byte) number; and the representation and coexistence of 4-byte and 2-byte AS numbers.
Fees
- Free
All eLearning courses are free of charge for participants, with priority given to APNIC Members.
Learning Outcomes
After completing this course students will be able to:
- Understand 4-byte AS numbers
- Know the difference and compatibility of 4-byte and 2-byte AS numbers
Before you start
This course is targeted at mid-level engineers and network administrators of both ISP and enterprise networks.
It is assumed that participants have a basic understanding of IP routing operations and protocols such as OSPF, BGP, etc.
To enjoy the full experience of our interactive eLearning webclasses, you need to have the following:
- Updated web browser with Adobe Flash Player 10
- Broadband connection running at a minimum of 256kbps or better
- Headset (to reduce noise)
In this unit
- Definition of an Autonomous System (AS)
- AS plain vs. AS dot representation of a 4-byte AS number
- Significance of AS numbers in BGP
- How AS paths are used in BGP to avoid AS loop and select best path
- Coexistence example of both 2-byte and 4-byte AS number
- How translation AS can be used for coexistence and peering