Re: new LSA

[Acee Lindem <[e-mail]>]

Erblichs wrote:

> Acee,
>
>         Then what would / could you do with this information? Could it
>         be useful in anyway?


Mitchell,

Both the reasons that Naiming (adjusting SPF delay based on change type) and
Vishwas (doing an incremental SPF for stub networks) noted are reasonable.


>         Have you ever heard of anyone really
>         interested in this type of information?


I can't say that I ever worked on an implementation that processed different
types of changes to individual LSAs differently.


>
>         Mitchell Erblich
>         ======================
>
>
> Acee Lindem wrote:
>
>>Erblichs wrote:
>>
>>
>>>Acee,
>>>
>>>        Lets assume that we modify the LSA comparison code sections
>>>        and we keep the older LSA versions for a short time assuming
>>>        we have the memory available.
>>>
>>Mitchell,
>>
>>Wasn't the original question whether this could be done without the
>>previous LSA?
>>
>>
>>>        What would you say we can now do with this additional information?
>>>
>>If you had the previous LSA you could definitely determine what had
>>changed between the two versions.
>>
>>
>>>        Mitchell Erblich
>>>        ===================
>>>
>>>
>>>Acee Lindem wrote:
>>>
>>>
>>>>Beatriz Silva wrote:
>>>>
>>>>
>>>>
>>>>>Hi everybody !
>>>>>
>>>>>I would like to know if it is possible (in OSPF v2) to identify, just by examining the LSA, what is the change the LSA is signaling. I want to identify if for example an router LSA was sent because the cost of one of the links was changed, or if it was because one of the links went down .... This, without having the previous LSAs, just by looking at the newly received LSA. Is it possible ? How  ?
>>>>>
>>>>>
>>>>>
>>>>Beatriz,
>>>>
>>>>AFAIK, there is no way to determine what has changed without a previous version
>>>>of the LSA.
>>>>
>>>>
>>>>
>>>>>Thank you very much,
>>>>>Beatriz
>>>>>
>>>>>--
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>>>>>
>>>>>
>>>>>
>>>>--
>>>>Acee
>>>>
>>>>
>>--
>>Acee
>>
>


--
Acee