>Not necessarily , DLCI, have only a local significance
>
>bosire
>
>Rizzo Damian wrote:
>
>> It was my understanding that two devices in a PVC connection had to have the
> > same DLCI number. Is this correct?
>>
Quite correct that DLCIs are locally significant. When you order a
virtual circuit, the carrier will give you two DLCIs. For example,
if you ordered a circuit between Lagos and New York, your Lagos site
might be told that DLCI 71 takes them to New York, and the New York
site might be told that DLCI 113 takes them to Lagos.
In the real world, people make mistakes at the provider. One of the
more common errors is accidentally reversing the DLCI assignments.
If the virtual circuit in question didn't come up, one of the first
things I might try, after verifying that neither DLCI 71 or 113 is
active at either site, is to use DLCI 71 in Lagos and 113 in New York.
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