Connectivity Guide

ip ospf transmit-delay seconds
○ seconds: the range is from 1 to 65535 (the default is 1 second).
The transmit delay must be the same on all routers in the OSPF network.
To view interface configurations, use the show config command in CONFIGURATION INTERFACE mode.
To view interface status in the OSPF process, use the show ip ospf interface command in EXEC mode.
The bold lines in the example show the change on the interface. The change is reflected in the OSPF configuration.
DellEMC(conf-if)#ip ospf cost 45
DellEMC(conf-if)#show config
!
interface TenGigabitEthernet 1/1
ip address 10.1.2.100 255.255.255.0
no shutdown
ip ospf cost 45
DellEMC(conf-if)#end
DellEMC#show ip ospf 34 interface
TenGigabitEthernet 1/1 is up, line protocol is up
Internet Address 10.1.2.100/24, Area 2.2.2.2
Process ID 34, Router ID 10.1.2.100, Network Type BROADCAST, Cost: 45
Transmit Delay is 1 sec, State DR, Priority 1
Designated Router (ID) 10.1.2.100, Interface address 10.1.2.100
Backup Designated Router (ID) 10.1.2.100, Interface address 0.0.0.0
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:06
Neighbor Count is 0, Adjacent neighbor count is 0
DellEMC#
Enabling OSPFv2 Authentication
To enable or change various OSPF authentication parameters, use the following commands.
● Set a clear text authentication scheme on the interface.
CONFIG-INTERFACE mode
ip ospf authentication-key key
Configure a key that is a text string no longer than eight characters.
All neighboring routers must share password to exchange OSPF information.
● Set the authentication change wait time in seconds between 0 and 300 for the interface.
CONFIG-INTERFACE mode
ip ospf auth-change-wait-time seconds
This setting is the amount of time OSPF has available to change its interface authentication type.
When you configure the auth-change-wait-time, OSPF sends out only the old authentication scheme until the
wait timer expires. After the wait timer expires, OSPF sends only the new authentication scheme. However, the new
authentication scheme does not take effect immediately after the authentication change wait timer expires; OSPF accepts
both the old as well as new authentication schemes for a time period that is equal to two times the configured
authentication change wait timer. After this time period, OSPF accepts only the new authentication scheme.
This transmission stops when the period ends.
The default is 0 seconds.
Enabling OSPFv2 Graceful Restart
Graceful restart is enabled for the global OSPF process.
The Dell EMC Networking implementation of OSPFv2 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.
Open Shortest Path First (OSPFv2 and OSPFv3)
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