[c-nsp] REP

[Adam Armstrong]

What platforms is REP available on? How low on the product line does it go?

adam.
> Hi Eric,
>
>    REP and STP are incompatible with each other.  if you are running REP
> on a set of links, you cannot run STP on them.  that said we have the 
> capability for a node that is running STP on a different set of links to
> work with the REP running on other links via the REP edge node 
> neighbor feature.  REP is able to generate Spanning Tree Change 
> Notifications to send
> into the STP part of the network and propagate changes coming from the 
> SPT
> domain into the REP domain.
>
> regards
> .siva
>
> On Fri, 26 Jun 2009, Eric Van Tol wrote:
>
>> I'm looking at REP for use in a metro ethernet environment and am 
>> looking for some real world opinions on its effectiveness.  The 
>> available white paper and documentation aren't 100% clear to me that 
>> STP can be disabled completely, or whether it should still run in 
>> addition to REP.  My preference is to remove STP from any switch in 
>> our network, then burn it, spread its ashes in a field, let cattle 
>> graze on the grass, then burn the cattle and shoot their remains into 
>> space on a collision course with the sun.  Apologies to animal rights 
>> activists, but this should give you an idea of how I really feel 
>> about Spanning Tree Protocol.
>>
>> Can anyone share any experiences they've had using REP?  We primarily 
>> use ME3400s in a ring topology with each end of the ring terminating 
>> in a pair of 6509s.  The 6509s, however, will be repurposed over the 
>> next few months as we replace them with an alternate vendor's 
>> equipment.  Not sure if this matters, but figured I'd mention it.  
>> Right now, we use strictly layer 3 on all links between nodes on a 
>> ring, preventing us from taking advantage of the more advanced layer 
>> 2 and vrf-lite features of the ME3400s.  This probably poor design 
>> decision was made due to previously perceived limitations with REP 
>> some years ago.
>>
>> Thanks in advance,
>> evt
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