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vPC HSRP Gateway Considerations – Cisco CCNP and CCIE
vPC HSRP Gateway ConsiderationsIn normal Hot Standby Router Protocol operation, the active HSRP interface answers ARP requests, but with a vPC, both HSRP interfaces (active and standby) can forward traffic.The most significant difference between the HSRP implementation of a non-vPC configuration and a vPC configuration is that the HSRP MAC addresses of a vPC configuration…
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vPC Primary and Secondary Roles – Cisco CCNP and CCIE
vPC Primary and Secondary RolesIn a vPC system, one vPC switch is defined as primary, and one is defined as secondary, based on defined priorities. The lower number has higher priority, so it wins. Also, these roles are nonpreemptive, so a device may be operationally primary but secondary from a configuration perspective.When the two vPC…
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vPC Traffic Flows and vPC Dual-Control Plane – Cisco CCNP and CCIE
vPC Traffic FlowsThe vPC configurations are optimized to help ensure that traffic through a vPC-capable system is symmetric. In Figure 2-9, for example, the flow on the left (from Core1 to Acc1) reaching a Cisco Nexus switch (Agg1 in the figure) from the core is forwarded toward the access layer switch (Acc1 in the figure)…
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With vPCs both switches are managed independently – Cisco CCNP and CCIE
It is important to remember that with vPCs both switches are managed independently. Keep in mind that you need to create and permit VLANs on both Nexus switches.A vPC system consists of the following components: vPC domain: The domain includes the vPC peers, keepalive links, and port channels that use the vPC technology.vPC peer switch:…
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Preparing for Cisco certification exams requires dedication, focus, and a comprehensive study plan to ensure success. These exams are designed to validate professionals’ knowledge and skills in various networking domains, making thorough preparation essential for achieving certification.