BGP: Difference between revisions
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= MED vs Local Preference = |
= MED vs Local Preference = |
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{{UC}} |
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;Multi-Exit Discriminator |
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*The MED is an optional attribute that comes in handy when there are multiple entrance paths to an AS. |
*The MED is an optional attribute that comes in handy when there are multiple entrance paths to an AS. |
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*The remote AS sets MED values to tell the other AS which path to use. |
*The remote AS sets MED values to tell the other AS which path to use. |
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*The MED is passed between the two autonomous systems, but the value is not passed to any other |
*The MED is passed between the two autonomous systems, but the value is not passed to any other ASs. |
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*The path with the lowest MED is the preferred path. |
*The path with the lowest MED is the preferred path. |
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*This attribute is only used to influence entry INTO the AS. |
*This attribute is only used to influence entry INTO the AS. |
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;Local Preference |
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*LOCAL_PREF is a well-known attribute that is also used when multiple paths between autonomous systems exist. |
*LOCAL_PREF is a well-known attribute that is also used when multiple paths between autonomous systems exist. |
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*The LOCAL_PREF attribute is just that… local and exclusive to the AS. |
*The LOCAL_PREF attribute is just that… local and exclusive to the AS. |