VPN Technologies - Tunneling - Implement and troubleshoot DMVPN (single-‐hub)
3 important questions on VPN Technologies - Tunneling - Implement and troubleshoot DMVPN (single-‐hub)
What does the hub router maintain and how can spokes dynamically build tunnels? 2
-Spoke can query database for addresses to dynamically build tunnels
What is the Qos command qos pre-classify used for?
When packets are encapsulated by tunnel or encryption headers, QoS features are unable to examine the original packet headers and correctly classify the packets. Packets traveling across the same tunnel have the same tunnel headers, so the packets are treated identically if the physical interface is congested. With the introduction of the QOS for VPNs feature, packets can now be classified before tunneling and encryption occur.
What is the command to enable QOS classification before packets are tunnel encapsulated?
(config-if) qos pre-classify
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