Oct
12
The BGP MED attribute, commonly referred to as the BGP metric, provides a means to convey to a neighboring Autonomous System (AS) a preferred entry point into the local AS.  BGP MED is a non-transitive optional attribute and thus the receiving AS cannot propagate it across its AS borders.  However, the receiving AS may reset the metric value upon receipt, if it so desires. Previous versions of BGP (v2 and v3) defined this attribute as the inter-AS metric (INTER_AS_METRIC) but in BGPv4 it is... Read More

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