[BGP, OSPF, Redistribution] Order of operations?

[srg]

Ah right. Yeah it won't recurse that way.

[NetworkGroover]

Ah makes more sense.

Just because a local route is part of one protocol does not mean it will redistribute with that protocol into another protocol. So if its local you will also need to redistribute local in OSF as well.

For a deeper understanding do a little research on how protocols actually redistribute between each other.


Also you "subnets" comment was:

router ospf 1
redistribute bgp subnets

else you will just be redistributing any classfull matches.

I think your explanations in combination with just working with it have been very helpful, so thanks for that.

I guess I should say at this point that I'm working with Arista switches, so the OS is Arista EOS.  Don't let that scare you away though - it works much the same way - with only subtle differences.  One being that there is no "subnets" form of a redistribute command.  I never understood the need for it anyway - is there a time you would only want to redistribute classful matches?  When I was working on Cisco certifications, I don't think I ever once NOT used the "subnets" form.

[that1guy15]

My guess is carry-over from the classfull days.

Glad I could help!

[NetworkGroover]

My guess is carry-over from the classfull days.

Glad I could help!

Wasn't that one of the things removed in NX-OS as well alongside the encapsulation command on trunks... seems like they're getting rid of stuff slowly now.

[that1guy15]

Yeah I think NX-OS and XE killed it but am not 100%

encapsulation was only needed on switches that supported both 802.1q and ISL so you needed to set dot1q or ISL was used by default.

[srg]

XE, being just regular IOS running on Linux, still has it afaik. NX/XR don't have it since they are newer and built classless from the start.

[that1guy15]

XE, being just regular IOS running on Linux, still has it afaik. NX/XR don't have it since they are newer and built classless from the start.

Sorry XR is what I meant. Thanks for the clarification!