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Heavy Networking
HN733: Russ White Hour: IS-IS vs OSPF and a Deep Dive into Ethernet Adapters
May 10, 2024
Experienced network engineer Russ White delves into Ethernet adapter link detection and OAM importance. Discussions on network convergence, OSPF vs ISIS comparison, and network scaling challenges. Also, a shoutout from sponsor Palo Alto Networks and upcoming topics in the next episode.
47:52
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Quick takeaways
- Ethernet adapters use loss of carrier or OAM for detecting link loss.
- Choosing between OSPF and ISIS involves considering history and complexity.
Deep dives
Understanding Ethernet Link Loss Detection
Ethernet devices have mechanisms to identify link loss, such as loss of carrier or through a rapid packet exchange to determine connectivity. Switches complicate this as loss of carrier may not always be detected due to the switch's intermediation. Different versions of Ethernet implement methods like sending fast Hello packets or Maintenance PDU for link status detection, influencing how deep into network switching you uncover link issues.
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