NEC N8406-022 manual Layer 3 information, ARP information

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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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Contents N8406-022 1Gb Intelligent L2 Switch Page Contents Statistics commands Operations Commands Connecting to the switch Iscli ReferenceIntroduction Additional referencesSetting an IP address Telnet 1Gb Intelligent L2 Switch IP addressEstablishing a Telnet connection Establishing an SSH connectionAccessing the switch # ssh user@1Gb Intelligent L2 Switch IP addressIdle timeout Typographical conventionsPing IP address Show portchannel 1-12hashinformationShow ip interface Show spanning-tree stpIscli basics Accessing the IscliIscli Command Modes Global commands Command line interface shortcuts Command abbreviationSwitchconfig# spanning-tree stp 1 bridge hello Switchconfig# sp stp 1 br hInformation Commands System Information commands SNMPv3 Information commandsSNMPv3 USM User Table information SNMPv3 View Table informationUser Name ProtocolSNMPv3 Access Table information View NameGroup Name PrefixSNMPv3 Group Table information SNMPv3 Community Table informationSec Model Index Name User Name Tag Trap1 Public V1v2only V1v2trapSec Level SNMPv3 Target Address Table informationSNMPv3 Target Parameters Table information SNMPv3 Notify Table information NameTag V1v2trapv1v2trapShow snmp-server v3 Command mode All SNMPv3 dumpSystem information System user information Usernames Enabled Oper Disabled Admin Always EnabledShow recent syslog messages Layer 2 information FDB information commands Show all FDB informationSpanning Tree information Show spanning-tree stp 1-32informationRapid Spanning Tree and Multiple Spanning Tree information Priority bridge Designated bridgeCommon Internal Spanning Tree information Desg 8000-000342fa3b80 8001 P2P, Edge 128 2000Desg 8000-000342fa3b80 8002 128 2000 128 2000Discarding DISC, Learning LRN, Forwarding FWD, or Disabled DSBCist Root Vlan information Trunk group 1, Enabled port state STG 1 forwardingTrunk group information Layer 3 information ARP informationShow layer3 information Command mode All IP informationShow all ARP entry information ARP address list informationIgmp multicast group information Igmp multicast router port informationRmon Information Rmon history informationInterval Rmon alarm informationShow rmon alarm Rmon event information Show rmon eventLink status information VLANs Port informationPort Tag Rmon Pvid Uplink Failure Detection information Show geaport Command mode AllLogical Port to GEA Port mapping Information dump Statistics commands Port StatisticsBridging statistics Ethernet statisticsDot3StatsAlignmentErrors Dot3StatsFCSErrorsDot3StatsInternalMacTransmitError Dot3StatsSingleCollisionFramesInterface statistics Internet Protocol IP statistics Show interface gigabitethernet port number ip-countersLayer 2 statistics Link statisticsFDB statistics Show interface gigabitethernet port number link-countersLayer 3 statistics IP statisticsARP statistics ARP statistics ArpEntriesCur ArpEntriesHighWaterDNS statistics DnsInRequests DnsOutRequests DnsBadRequests DNS statisticsIcmp statistics TCP statistics UDP statistics Management Processor statistics Igmp Multicast Group statisticsShow mp tcp-block Show mp udp-block161 10ad41e8/10ad5790All UDP allocated control blocks Listen Snmp statistics Show snmp-server counters Command mode All except User ExecCPU statistics Decoding Snmp messages received Show ntp counters Command mode All NTP statisticsUplink Failure Detection statistics Statistics dumpConfiguration Commands Saving the configurationSystem configuration Viewing and saving changesSystem host log configuration Secure Shell Server configuration Radius server configuration TACACS+ server configuration NTP server configuration System Snmp configuration SNMPv3 configuration User Security Model configuration Privacy-password passwordPrivacy-protocol desnone No snmp-server userSNMPv3 View configuration View-based Access Control Model configurationSNMPv3 Group configuration SNMPv3 Community Table configurationSNMPv3 Target Address Table configuration SNMPv3 Target Parameters Table configurationManagement Networks configuration SNMPv3 Notify Table configurationSystem Access configuration User Access Control configuration User ID configurationHttps Access configuration Port configuration Temporarily disabling a portLayer 2 configuration Port link configurationSpanning-tree mrst Mode Spanning-tree mrst EnableSpanning-tree mstp NameCommon Internal Spanning Tree configuration Cist bridge configurationCist port configuration Spanning Tree configuration Bridge Spanning Tree configuration Spanning Tree port configuration Static FDB configuration Forwarding Database configurationTrunk configuration Layer 3 configuration Vlan configurationIP interface configuration Default Gateway configurationIgmp snooping configuration Address Resolution Protocol configurationIgmp configuration Igmp static multicast router configuration Igmp filtering configurationIgmp filter definition Domain Name System configurationIgmp filtering port configuration Rmon event configuration Remote Monitoring configurationRmon history configuration Rmon alarm configuration Port-based port mirroring Uplink Failure Detection configurationPort mirroring Configuration Dump Failure Detection Pair configurationLink to Monitor configuration Link to Disable configurationSaving the active switch configuration Restoring the active switch configurationOperations Commands Operations-level port optionsBoot Options Updating the switch software imageDownloading new software to the switch Router# copy tftp image1image2boot-imageUploading a software image from the switch Routerconfig# boot image image1image2Switch# copy image1image2boot-image tftp Selecting a software image to runAccessing the AOS CLI Selecting a configuration blockResetting the switch Forwarding Database maintenance Maintenance CommandsSystem maintenance ARP cache maintenance Debugging optionsUuencode flash dump Igmp Snooping maintenanceIgmp Mrouter maintenance Panic command Switch# copy flash-dump tftp server filenameSwitch# clear flash-dump Tftp system dump putUnscheduled system dumps Index
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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.