Dell PowerConnect 8100 CLI Reference Guide - Page 1326

Stub Router OSPF enters stub router mode, as described in RFC 3137, when it encounters a resource limitation that prevents it from computing a complete routing table. In this state, OSPF sets the link metrics of non-stub links in its own router LSAs to the largest possible value, discouraging other routers from computing paths through the stub router, but allowing other routers to compute routes to destinations attached to the stub router. To restore OSPF to normal operation, resolve the condition that caused the resource overload, then disable and reenable OSPF globally. External LSDB Overflow OSPF enters this state when the number of external LSAs exceeds a configured limit, as described in RFC 1765. External LSA Count Shows the number of external (LS type 5) link-state advertisements in the link-state database. External LSA Checksum Shows the sum of the LS checksums of external link-state advertisements contained in the link-state database. New LSAs Originated Shows the number of link-state advertisements that have been originated. LSAs Received Shows the number of link-state advertisements received determined to be new instantiations. LSA Count The number of LSAs in the link state database. Maximum Number The limit on the number of LSAs that the router can store in its of LSAs link state database. LSA High Water The maximum number of LSAs that have been in the link state Mark database since OSPF began operation. Retransmit List Entries The current number of entries on all neighbors' retransmit lists. Maximum Number The maximum number of entries that can be on neighbors' of Retransmit retransmit lists at any given time. This is the sum for all Entries neighbors. When OSPF receives an LSA and cannot allocate a new retransmit list entry, the router does not acknowledge the LSA, expecting the sender to retransmit. Retransmit Entries The maximum number of retransmit list entries that have been High Water Mark on all neighbors' retransmit lists at one time. NSF Support Whether graceful restart is administratively enabled. Possible values are Support Always, Disabled, or Planned. 1326 OSPFv3 Commands