OSPF

OSPF

Table Of Contents
  1. Notes
  2. Command Summary

Quiz Page

Test your understanding of key concepts with a short quiz. A quick way to check what you know before moving on.

Lab Page

Hands-on practice exercises to reinforce what you’ve learned. Work through real scenarios in a guided environment.

Notes

OSPF configuration is under the Protocols > OSPF hierarchy. Most of the configuration is then under the ‘area’.

Interfaces added under the area begin to ‘participate’, meaning that their networks are advertised into OSPF, and they start peering with connected routers.

If an interface is configured as passive, its network will be advertised, but it will not peer with connected routers.

In Junos, the Router-ID is configured globally, not for individual protocols as is the case on a Cisco router.

Command Summary

CommandModeDescription
set routing-options router-idConfigurationSet the router ID
set protocols ospf area 0 interfaceConfigurationAdd an interface to an area
show ospf neighborOperationalSee neighbours and their state (eg, 2WAY, EXSTART, FULL, etc)

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