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Routing & Switching · Intermediate

Seed Metric

The initial metric assigned to routes redistributed into a routing protocol.

Definition

Defaults on Cisco: OSPF uses 20 for redistributed routes (1 for BGP), IS-IS 0, BGP takes the IGP metric as MED, while RIP and EIGRP default to infinity, so they require a metric unless redistributing connected or static routes. The seed metric is set with the metric keyword, default-metric or a route map.

Example

redistribute ospf 1 metric 100000 100 255 1 1500 under router eigrp 100

Exam tip

EIGRP's seed metric needs five values: bandwidth, delay, reliability, load and MTU.

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