OSPF attribute Further information

  • Unique router-id
  • Area ID
  • Area flags (Stub/NSSA flag)
  • Authentication type (MD5 (type 2), Simple (type 1) or None (type 0))
  • Authentication password (The authentication secret)
  • Hello/Dead interval
  • L3 MTU (The MTU announced on OSPF DBD packets)
    • Compatible network type (p2p, broadcastetc... The network type must be consistent on the network segment. You’d have a broken graph if one OSPF node is expecting to - have a DR and other OSPF nodes aren’t.)
  • Network Mask (Since the network mask is coupled with the underlying graph, it has to match.)

ospf ecmp