Dell Force10 E1200i FTOS Version 8.4.1.5 Configuration Guide for ExaScale - Page 681
Enable OSPFv2 authentication, Enable graceful restart
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Enable OSPFv2 authentication Use the following commands in CONFIGURATION INTERFACE mode to enable or change various OSPF authentication parameters: Command Syntax ip ospf authentication-key key Command Mode CONFIG-INTERFACE ip ospf auth-change-wait-time seconds CONFIG-INTERFACE Usage Set clear text authentication scheme on the interface. Configure a key that is a text string no longer than eight characters. All neighboring routers must share the same password to exchange OSPF information. Set the authentication change wait time in seconds between 0 and 300 for the interface. This is the amount of time OSPF has available to change its interface authentication type. During the auth-change-wait-time, OSPF sends out packets with both the new and old authentication schemes. This transmission stops when the period ends. The default is 0 seconds. Enable graceful restart Graceful Restart is enabled for the global OSPF process. Use these commands to configure OSPF graceful restart. Refer to Graceful Restart for feature details. The Dell Force10 implementation of OSPF graceful restart enables you to specify: • grace period-the length of time the graceful restart process can last before OSPF terminates it. • helper-reject neighbors-the router ID of each restart router that does not receive assistance from the configured router. • mode-the situation or situations that trigger a graceful restart. • role-the role or roles the configured router can perform. Note: By default, OSPF graceful restart is disabled. You enable OSPF graceful restart in CONFIGURATION ROUTER OSPF mode. Command Syntax graceful-restart grace-period seconds Command Mode Usage CONFIG-ROUTER-OSPF-id Enable OSPF graceful-restart globally and set the grace period. Seconds range: between 40 and 3000 This is the period of time that an OSPF router's neighbors will advertise it as fully adjacent, regardless of the synchronization state, during a graceful restart. OSPF terminates this process when the grace period ends. Open Shortest Path First (OSPFv2 and OSPFv3) | 681
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