One Comment on “How many bytes comprise the system ID within an IS-IS NET?”

1. Scooby says:

   November 26, 2015 at 7:52 pm

   Routers are identified with NETs of 8 to 20 bytes. ISO/IEC 10589 distinguishes only three fields in
   the NSAP address format: a variable-length area address beginning with a single octet, a system
   ID, and a 1-byte n-selector. Cisco implements a fixed length of 6 bytes for the system ID, which is
   like the OSPF router ID.
   Reference.
   http://www.cisco.com/en/US/products/ps6599/products_white_paper09186a00800a3e6f.shtml

   
   
   
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