Wired Intelligent Edge (Campus Switching and Routing)

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Occasional Contributor II

8320 passive interface default

Hi,

On my 8320 I can see under the router OSPF commands an option to enter passive interface default.

I couldn’t see an option to turn off this command one interface at a time (no passive interface 1/1/1)

How do you allow for certain ports ... or is the switch smart enough to see which ports you have configured for OSPF under this command?

Thanks
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MVP Expert

Re: 8320 passive interface default

Greetings!

 

You can configure individual interfaces as passive OSPF ports from the interface context:

 

switch(config)# interface 1/1/1
switch(config-if)# ip ospf passive


Matthew Fern
Technical Marketing Engineer, Wired Intelligent Edge

Aruba, a Hewlett Packard Enterprise company

8000 FOOTHILLS BLVD  |  ROSEVILLE, CA 95747
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Occasional Contributor II

Re: 8320 passive interface default

Thanks, that’s great

Re: 8320 passive interface default

If I may, FYI, a best practice applied I saw on many large ITs, is to passive all interface and activate only the one that should be active.

Occasional Contributor II

Re: 8320 passive interface default

Would that look like

Router OSPF 1
Passive interface default

Interface 1/1/1
IP OSPF 1 area 0 - this bit here is what I’m unsure about?

Does this command override the passive interface default?

Thanks

Re: 8320 passive interface default

Simply no ip ospf passive on the interface.

Here is an example of SVI with ospf:

 

interface vlan251
vrf attach prod
ip address 10.1.251.2/29
ip ospf 10 area 0.0.0.0
no ip ospf passive
ip ospf cost 100

Occasional Contributor II

Re: 8320 passive interface default

Excellent - thanks for that
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