Use the bgp aggregate-different meds command to allow the aggregation of routes with different MED attributes. By default, BGP only aggregates routes that have the same MED value, as prescribed by RFC 4271.
When this command is given, the path for an active aggregate address is advertised without a MED attribute. When this command is not given, if multiple routes match an aggregate address, but have different MEDs, the aggregate takes the MED of the first matching route. Any other matching prefix with the same MED is included in the aggregate. Matching prefixes with different MEDs are not considered to be part of the aggregate and continue to be advertised as individual routes.
| Default | All the routes aggregated by a given aggregate address must have the same MED value. |
| Format | bgp aggregate-different-meds |
| Mode |
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