What isNHRP

NHRP, or Next Hop Resolution Protocol, is a layer 3 switching technology that facilitates data packet transfer via layer 2 switches. It does this by sending a request through conventional routers to get the destination address, and then transferring the data packets via the layer 2 switches.

This protocol is particularly useful in networks that use VPNs (virtual private networks) or that have multiple sites. Instead of having to use static routes between sites and IP addresses, NHRP can dynamically discover and announce routes as needed.

However, it’s important to note that if an intermediate router does not recognize an NHRP request, it will be dropped. This means that proper configuration and implementation of NHRP is crucial for it to work effectively.

Frequently Asked Questions about NHRP:

What does NHRP do?

NHRP is a layer 3 switching technology that facilitates data packet transfer via layer 2 switches. It sends a request through conventional routers to get the destination address, and then transfers the data packets via the layer 2 switches.

What is NHRP used for?

NHRP is particularly useful in networks that use VPNs or that have multiple sites, as it can dynamically discover and announce routes as needed.

What happens if an intermediate router doesn’t recognize an NHRP request?

If an intermediate router does not recognize an NHRP request, it will be dropped. This means that proper configuration and implementation of NHRP is crucial for it to work effectively.

In Conclusion

NHRP is a powerful technology that facilitates data packet transfer in networks that use VPNs or have multiple sites. By dynamically discovering and announcing routes as needed, NHRP helps to streamline network communication and improve overall efficiency. However, it’s important to ensure proper implementation and configuration for it to work effectively.

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