Two AOS-Switches connect on VLAN 10 in OSPF Area 1, which is defined as a stub area on both. Which mismatch can cause OSPF routers to lose adjacency?
Two AOS-Switches connect on VLAN 10 in OSPF Area 1, which is defined as a stub area on both. Which mismatch can cause OSPF routers to lose adjacency?
In OSPF, for routers to maintain adjacency in a stub area, their area definitions must match, including the 'no-summary' option if configured. If this option is added to the Area 1 configuration on just one router, it will cause a mismatch in the stub area definitions, leading to loss of adjacency. Other configuration mismatches like graceful restart or jumbo frames typically do not impact OSPF adjacency directly; MTU mismatches are also relevant but were not the main focus in the given options.
C. MTU must be the same
Concur, C.