It doesn't overwire as-paths - it overrides them in the selection process.
If it didn't, it wouldn't do anything.
"Zhang, Ou (David)" wrote:
> All,
>
> Can someone name the pros and cons of using local preference and MED ?
> For instance, one problem of using local preference is that it overwrites
> as-path. The problem of using MED is that you have to rely on other
> organizations. Thanks.
>
> -David
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