System ID

B, C, D

formatting link
All ISs and ESs in a routing domain must have system IDs of the same length. Furthermore, Cisco implements a fixed length of 6 bytes for the system ID.

Each system ID within an area must be unique. It is used to identify a IS-IS node.

There are several techniques for creating unique system IDs

  • Start numbering 1, 2, 3, 4, and so on.
  • Use Media Access Control (MAC) addresses.
  • Convert and use the loopback IP address: -->> 1921.6801.1001.
Reply to
Bob by the Bay
Loading thread data ...

Which of the following points can you include in your discussion of the Cisco IS-IS NSAP address System IDs? (Select three)

A. System IDs can vary in size within a domain.

B. The System ID identifies a node in an IS-IS network.

C. The System ID must be unique within a Level-1 area.

D. The System ID must be unique within a Level-2 area.

E. The System ID must be the MAC address of the router.

My answer: A, B, C

My freinds saying: B, C, D

Reply to
Saad Ahmed Forums website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.