Network Topology Mapping for Multivendor Networks

Command for Mapping Multivendor Network Topology

Question

A network engineer must create a diagram of a multivendor network.

Which command must be configured on the Cisco devices so that the topology of the network can be mapped?

Answers

Explanations

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A. B. C. D.

A.

To create a diagram of a multivendor network, a network engineer must be able to discover and map the network topology. Cisco devices can be configured to support two different discovery protocols - Cisco Discovery Protocol (CDP) and Link Layer Discovery Protocol (LLDP). Both protocols allow network devices to advertise their presence, identity, and capabilities to adjacent devices. However, they are not compatible with each other, so the network engineer must choose which protocol to use based on the devices in the network.

The correct command that must be configured on the Cisco devices so that the topology of the network can be mapped depends on the type of discovery protocol that is used in the network.

Option A, "Device(config)#lldp run," is the correct command to enable LLDP on Cisco devices. LLDP is an industry-standard discovery protocol that is supported by a wide range of network devices from multiple vendors. LLDP can be used to discover and map the network topology, as well as to exchange configuration information and network policy between devices.

Option B, "Device(config)#cdp run," is the correct command to enable CDP on Cisco devices. CDP is a proprietary discovery protocol that is only supported on Cisco devices. CDP can be used to discover and map the network topology, as well as to exchange configuration information between Cisco devices. However, it cannot be used to exchange configuration information with non- Cisco devices.

Option C, "Device(config-if)#cdp enable," is the command used to enable CDP on a specific interface of a Cisco device. This command is only relevant if CDP is already enabled on the device using the "Device(config)#cdp run" command.

Option D, "Device(config)#flow-sampler-map topology," is not a valid command for discovery protocol configuration. This command is used to configure flow sampling, which is a feature that allows network administrators to capture and analyze network traffic for troubleshooting and performance monitoring purposes. It is not related to network discovery or topology mapping.

In summary, the correct command that must be configured on the Cisco devices so that the topology of the network can be mapped is "Device(config)#lldp run" if LLDP is used, or "Device(config)#cdp run" if CDP is used.