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New Member

When would a sham-link be used in preference to a GRE tunnel?

Hello,

Can someone please explain when would a sham-link be used in preference to a GRE tunnel? They both appear to be able to provide an intra-area link?

Many Thanks

Ian

1 REPLY
New Member

Re: When would a sham-link be used in preference to a GRE tunnel

Hello,

Please ignore my post above, since I phrased the question very badly.

My questions are:

1/ Is sham-link cisco proprietary? I couldn't find any RFC about it?

2/ Can anyone point me to a document that describes how the feature operates (I've read the config guides but they are very high level)

My assumption is that when the routes are put in the VRF, the appear as OSPF intra-area routes, rather than BGP routes. Is this correct?

Many Thanks

Ian

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