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vrf lite - what is the function of rd?

Hello, Cisco gurus out there.

I have a question.

What is the function of rd configured under vrf lite?

rd without route-target import/export. 

Thanks

  • WAN Routing and Switching
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1 REPLY

Re:vrf lite - what is the function of rd?

Hi Thomas,

it doesn't have any function when using VRF light without MP-BGP, it's just a mandatory command for VRFs in IOS.

Hope that helps
Rolf

[EDIT]:

There are IOS versions that do not require the configuration of a RD to make VRF lite work.

Unfortunately I don't know what versions; we always use the RD in VRF lite as a matter of principle.

Technically, the RD belongs to the BGP Multiprotocol Extensions and I've read that in IOS-XR it has to be configured  under BGP, not under VRF, which I find less confusing.


Sent from Cisco Technical Support Android App

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