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11 Cards in this Set
- Front
- Back
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What is HSRP?
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Hot Standby Router Protocol
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How does HSRP work?
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Virtual MAC and IP address provided to clients. One router does forwarding while other routers act as backups.
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What is the default HSRP priority?
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100
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What makes an HSRP priority more preferred?
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Higher = better
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How does HSRP fail back after primary is back online?
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It doesn't by default. Preemption must be configured.
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How are HSRP hellos communicated?
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UDP-based to 224.0.0.2:1985
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How do HSRP groups work?
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Multiple groups can be configured on a device. Can be active on one group and standby for another group.
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What is HSRP interface tracking?
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If configure, HSRP can monitor the status of an interface and decrement priority if a tracked interface fails. Requires preemption to be configured.
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How do you troubleshoot an HSRP standby address reported as duplicate?
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Does not necessarily indicate a problem with HSRP. Usually an STP, EtherChanel or duplicate frame issue.
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How do you troubleshoot HSRP state flapping issues?
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HSRP hellos are not being received. Likely a physical problem.
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How do you troubleshoot HSRP failing to recognize peer?
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Probably either a physical problem or an issue with VTP.
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