Which network type is additionally supported in IS-IS besides P2P?

Which network type is additionally supported in IS-IS besides P2P?

• A. P2MP
• B. NBMA
• C. SNAP
• D. LAN (broadcast network)

Answer: (D)

In the IS-IS (Intermediate System to Intermediate System) routing protocol, besides point-to-point (P2P) networks, the protocol also supports broadcast networks, commonly referred to as LANs. This support allows IS-IS to effectively manage routing within networks where multiple devices are interconnected and can directly communicate with one another, such as in a Local Area Network (LAN) scenario. In a LAN setup, IS-IS can utilize a designated router (DR) to optimize routing updates and maintain efficient network operation. This is significant because the broadcast capabilities of LANs enable efficient communication methodologies, like multicasting, where routing information can be disseminated to multiple nodes at once without requiring individual updates for each node. The other options, while important in different contexts, do not represent an additional network type specifically supported by IS-IS alongside point-to-point networks: - P2MP (Point-to-Multipoint) involves a single endpoint communicating to multiple endpoints but isn't explicitly categorized as a support structure in IS-IS. - NBMA (Non-Broadcast Multi-Access) refers to networks where multiple devices are present, but they do not support broadcast natively; IS-IS has specific requirements for handling such networks, making it less of a

In the IS-IS (Intermediate System to Intermediate System) routing protocol, besides point-to-point (P2P) networks, the protocol also supports broadcast networks, commonly referred to as LANs. This support allows IS-IS to effectively manage routing within networks where multiple devices are interconnected and can directly communicate with one another, such as in a Local Area Network (LAN) scenario.

In a LAN setup, IS-IS can utilize a designated router (DR) to optimize routing updates and maintain efficient network operation. This is significant because the broadcast capabilities of LANs enable efficient communication methodologies, like multicasting, where routing information can be disseminated to multiple nodes at once without requiring individual updates for each node.

The other options, while important in different contexts, do not represent an additional network type specifically supported by IS-IS alongside point-to-point networks:

• P2MP (Point-to-Multipoint) involves a single endpoint communicating to multiple endpoints but isn't explicitly categorized as a support structure in IS-IS.

• NBMA (Non-Broadcast Multi-Access) refers to networks where multiple devices are present, but they do not support broadcast natively; IS-IS has specific requirements for handling such networks, making it less of a