Free Practice Questions for RUCKUS RCNI Exam

The inline power poe-ha command on RUCKUS ICX switches enables two key Power over Ethernet (PoE) features:

Fast Boot PoE: This feature ensures that PoE power is delivered to connected devices immediately upon switch startup, without waiting for the entire system to boot up. This is crucial for devices that need to be operational as soon as possible, such as IP phones or security cameras. To enable Fast Boot PoE, enter interface configuration mode and execute the command:

inline power poe-ha

This command ensures that PoE is delivered promptly during the boot process.

Perpetual PoE: This feature maintains PoE power to connected devices even when the switch undergoes a soft reboot or firmware upgrade. It ensures uninterrupted power delivery, preventing devices from losing power during such events. To enable Perpetual PoE, use the same command in interface configuration mode:

By configuring this command, the switch provides continuous PoE power during reboots.

For more detailed information on these features and their configuration, refer to the RUCKUS Community Forum post titled "Things to consider about PoE at a glance, when deploying."

Ruckus Wireless Community

In network architecture, a collapsed aggregation and core design consolidates the aggregation and core layers into a single layer, simplifying the network and reducing latency. RUCKUS ICX switch models suitable for such designs include:

ICX7850:

Overview:

A high-performance, stackable switch designed for enterprise aggregation and core layers.

Key Features:

Supports up to 32 ports of 40/100 GbE, providing high-density connectivity.

Advanced stacking capabilities, allowing up to 12 switches to be stacked together for simplified management and scalability.

Dual hot-swappable power supplies and fans, ensuring high availability and reliability.

Use Case:

Ideal for organizations seeking to implement a collapsed core architecture with high bandwidth requirements and simplified network management.

Adding a new member to an existing RUCKUS ICX switch stack can be accomplished through the following methods:

Stack Priority Configuration:

Determine the role of the new switch within the stack hierarchy by setting its priority.

Access the new switch's CLI.

Enter global configuration mode: configure terminal.

Set the stack unit ID and priority: stack unit [unit_id] priority [priority_value].

A higher priority value increases the likelihood of the switch becoming the stack master.

Save the configuration: write memory.

Manual Configuration:

Manually configure the new switch to match the existing stack settings.

Ensure the switch has a clean configuration by resetting it to factory defaults:

Enter global configuration mode: configure terminal.

Execute: write erase.

Reload the switch: reload.

Enable stacking:

Enter global configuration mode: configure terminal.

Execute: stack enable.

Connect the new switch to the existing stack using appropriate stacking cables.

On the stack master, use the stack secure-setup command to recognize and add the new member.

Verify the new member's addition by executing: show stack.

References:

For detailed procedures on building an ICX stack, refer to the RUCKUS Community Forums.

Ruckus Wireless Community

Understanding Bridge Priority:

The bridge priority in the Spanning Tree Protocol (STP) is represented in hexadecimal format in RUCKUS ICX switches.

In the output, the bridge priority is a combination of the priority value (default is 32768 or 0x8000 in hex) and the VLAN ID.

Why It Is 8000:

Unless explicitly modified, the default bridge priority is 8000 in hexadecimal.

Why Other Options Don't Apply:

B. 0: This value does not align with the default or modified priority values.

C. 9c49: This might represent a different component of the output, such as MAC address.

D. 20009: This is an incorrect representation of the bridge priority.

References:

ICX Spanning Tree Configuration Guide: RUCKUS Documentation

The Link Layer Discovery Protocol (LLDP) is a vendor-neutral protocol used by network devices to advertise their identity and capabilities to neighbors on a local network. In RUCKUS ICX switches, the show lldp neighbors command displays information about directly connected devices, including their system names.

Command Usage:Copy code

show lldp neighbors

Output Example:

Local Port Neighbor MAC System Name

----------- ------------- -----------

1/1/1 00:11:22:33:44:55 Device_A

1/1/2 66:77:88:99:AA:BB Device_B

In this example, the System Name column lists the names of devices connected to the local switch ports. This information is particularly useful for network administrators to identify and manage connected devices efficiently.

For more detailed information, including IP addresses and port descriptions, the following command can be used:

show lldp neighbors detail

Output Example:Copy code

Local Port: 1/1/1

Neighbor MAC: 00:11:22:33:44:55

System Name: Device_A

Port Description: GigabitEthernet1/0/1

System Description: Vendor Model XYZ

Management Address: 192.168.1.10

This detailed output provides comprehensive information about each connected device, aiding in network management and troubleshooting.

It's important to note that LLDP must be enabled on the switch and the connected devices for this information to be available. By default, LLDP is enabled on RUCKUS ICX switches.