Layer 3 information

The following table describes basic Layer 3 Information commands. The following sections provide more detailed information and commands. Layer 3 functionality is limited in this release.

Table 22 Layer 3 information commands

Command

Usage

show ip arp

Displays Address Resolution Protocol (ARP) Information.

 

Command mode: All except User EXEC

show layer3 information

Displays IP Information. IP information, includes:

 

IP interface information: Interface number, IP address, subnet mask,

 

VLAN number, and operational status.

 

Default gateway information: Metric for selecting which configured

 

gateway to use, gateway number, IP address, and health status

 

IP forwarding information: Enable status, lnet and lmask

 

Port status

 

Command mode: All except User EXEC

show ip igmp groups

Displays IGMP Information.

 

Command mode: All except User EXEC

show layer3

Dumps all switch information available from Layer 3 memory (10K or more,

 

depending on your configuration).

 

If you want to capture dump data to a file, set your communication software on

 

your workstation to capture session data prior to issuing the dump commands.

 

Command mode: All except User EXEC

ARP information

The Address Resolution Protocol (ARP) information includes IP address and MAC address of each entry, address status flags, VLAN, and port for the address, and port referencing information.

The following table describes the Address Resolution Protocol commands.

Table 23 ARP information

Command

Usage

show ip arp find <IP address>

Displays a single ARP entry by IP address.

 

Command mode: All except User EXEC

show ip arp interface <port number>

Displays the ARP entries on a single port.

 

Command mode: All except User EXEC

show ip arp vlan <1-4095>

Displays the ARP entries on a single VLAN.

 

Command mode: All except User EXEC

show ip arp

Displays all ARP entries, including:

 

IP address and MAC address of each entry

 

Address status flag

 

The VLAN and port to which the address belongs

 

The ports which have referenced the address (empty if no port

 

has routed traffic to the IP address shown)

 

Command mode: All except User EXEC

show ip arp reply

Displays the ARP address list: IP address, IP mask, MAC

 

address, and VLAN flags.

 

Command mode: All except User EXEC

Information Commands 32

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NEC N8406-022 manual Layer 3 information, ARP information

N8406-022 specifications

The NEC N8406-022 is a robust and versatile networking device designed primarily for organizations requiring high-performance connectivity solutions. As part of NEC's extensive portfolio of networking equipment, the N8406-022 is engineered to address the demands of modern enterprise environments, ensuring seamless communication and data processing capabilities.

One of the key features of the N8406-022 is its multi-layer switching functionality. This device supports Layer 2 and Layer 3 switching, allowing for efficient data routing and reducing latency within local area networks (LANs). This capability is particularly beneficial for businesses that rely on real-time data access and transfer, such as those in financial services, media, and telecommunications.

The N8406-022 is equipped with advanced Quality of Service (QoS) features that help prioritize critical network traffic. This means that voice and video data packets can be given precedence over less time-sensitive information, ensuring that essential communication remains clear and uninterrupted. This is crucial for organizations leveraging VoIP and video conferencing solutions.

In terms of connectivity, the NEC N8406-022 offers a variety of ports, including multiple Gigabit Ethernet ports, which facilitate high-speed data transfer and enable seamless integration into existing network infrastructures. The device may also include 10 Gigabit SFP+ ports, providing the flexibility for high-capacity uplinks to support bandwidth-intensive applications and storage solutions.

Security is another focal point of the NEC N8406-022, with integrated features such as VLAN support, access control lists (ACLs), and port security measures. These capabilities protect sensitive data from unauthorized access and ensure that only legitimate users and devices can connect to the network.

Moreover, the N8406-022 often incorporates advanced energy-efficient technologies that minimize power consumption without compromising performance. This not only contributes to operational cost savings but also supports organizations in their sustainability efforts.

With its combination of performance, security, and energy efficiency, the NEC N8406-022 stands out as a reliable networking solution suitable for a wide range of enterprises looking to enhance their connectivity and operational efficiency. Whether deployed in data centers or as part of a corporate network, this device is built to meet the evolving demands of today’s digital landscape.