IS-IS and OSPF: Network Design Comparisons and ... - JANOG
IS-IS and OSPF: Network Design Comparisons and ... - JANOG
IS-IS and OSPF: Network Design Comparisons and ... - JANOG
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<strong>Design</strong>ated Routers: <strong>OSPF</strong><br />
• Highest priority becomes DR<br />
• 0-255, default 128<br />
• Highest router ID tie-breaker<br />
• Backup designated router<br />
• Speeds recovery from failed DR<br />
• DR cannot be pre-empted<br />
• The DR is usually the first active router<br />
• Adjacencies formed only with DR <strong>and</strong> BDR
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