NEC N8406-022 manual Layer 2 statistics, Link statistics, FDB statistics

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Link statistics

Use the following command to display the link statistics of the selected port:

show interface gigabitethernet <port number> link-counters

Command mode: All

Link statistics for port 1:

linkStateChange:2

The following table describes the link statistics for a selected port:

Table 36 Link statistics for port

Statistic

Description

linkStateChange

The total number of link state changes.

Layer 2 statistics

The following table describes the Layer 2 statistics commands. The following sections provide more detailed information and commands.

Table 37 Layer 2 Statistics commands

Command

Usage

show

mac-address-table counters

Displays the Forwarding Database statistics.

 

 

Command mode: All

show

layer2 counters

Displays all Layer 2 statistics.

Command mode: All

FDB statistics

Use the following command to display statistics regarding the use of the forwarding database:

show mac-address-table counters

Command mode: All

FDB statistics:

current:

91

hiwat:

91

These commands enable you to display statistics regarding the use of the forwarding database, including the number of current entries and the maximum number of entries ever recorded.

The following table describes the Forwarding Database (FDB) statistics:

Table 38

Forwarding Database statistics

Statistic

Description

current

Current number of entries in the Forwarding Database.

hiwat

Highest number of entries recorded at any given time in the Forwarding Database.

Statistics commands 46

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Contents N8406-022 1Gb Intelligent L2 Switch Page Contents Statistics commands Operations Commands Introduction Connecting to the switchIscli Reference Additional referencesEstablishing a Telnet connection Setting an IP addressTelnet 1Gb Intelligent L2 Switch IP address Establishing an SSH connectionAccessing the switch # ssh user@1Gb Intelligent L2 Switch IP addressPing IP address Idle timeoutTypographical conventions Show portchannel 1-12hashinformationShow ip interface Show spanning-tree stpIscli Command Modes Accessing the IscliIscli basics Global commands Switchconfig# spanning-tree stp 1 bridge hello Command line interface shortcutsCommand abbreviation Switchconfig# sp stp 1 br hInformation Commands System Information commands SNMPv3 Information commandsUser Name SNMPv3 USM User Table informationSNMPv3 View Table information ProtocolGroup Name SNMPv3 Access Table informationView Name PrefixSec Model SNMPv3 Group Table informationSNMPv3 Community Table information Index Name User Name Tag Trap1 Public V1v2only V1v2trapSNMPv3 Target Parameters Table information SNMPv3 Target Address Table informationSec Level SNMPv3 Notify Table information NameTag V1v2trapv1v2trapShow snmp-server v3 Command mode All SNMPv3 dumpSystem information Show recent syslog messages Usernames Enabled Oper Disabled Admin Always EnabledSystem user information 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 bridgeDesg 8000-000342fa3b80 8002 128 2000 Common Internal Spanning Tree informationDesg 8000-000342fa3b80 8001 P2P, Edge 128 2000 128 2000Cist Root Disabled DSBDiscarding DISC, Learning LRN, Forwarding FWD, or Trunk group information Trunk group 1, Enabled port state STG 1 forwardingVlan information Layer 3 information ARP informationShow all ARP entry information Show layer3 information Command mode AllIP information ARP address list informationRmon Information Igmp multicast group informationIgmp multicast router port information Rmon history informationShow rmon alarm Rmon alarm informationInterval Rmon event information Show rmon eventLink status information Port Tag Rmon Pvid Port informationVLANs Logical Port to GEA Port mapping Show geaport Command mode AllUplink Failure Detection information Information dump Statistics commands Port StatisticsBridging statistics Ethernet statisticsDot3StatsInternalMacTransmitError Dot3StatsAlignmentErrorsDot3StatsFCSErrors Dot3StatsSingleCollisionFramesInterface statistics Internet Protocol IP statistics Show interface gigabitethernet port number ip-countersFDB statistics Layer 2 statisticsLink statistics Show interface gigabitethernet port number link-countersLayer 3 statistics IP statisticsARP statistics ARP statistics ArpEntriesCur ArpEntriesHighWaterIcmp statistics DNS statisticsDNS statistics DnsInRequests DnsOutRequests DnsBadRequests TCP statistics UDP statistics Show mp tcp-block Management Processor statisticsIgmp Multicast Group statistics Show mp udp-blockAll UDP allocated control blocks Listen 10ad41e8/10ad5790161 CPU statistics Show snmp-server counters Command mode All except User ExecSnmp statistics Decoding Snmp messages received Show ntp counters Command mode All NTP statisticsUplink Failure Detection statistics Statistics dumpSystem configuration Configuration CommandsSaving the 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 Privacy-protocol desnone User Security Model configurationPrivacy-password password 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 configurationSystem Access configuration SNMPv3 Notify Table configurationManagement Networks configuration User Access Control configuration User ID configurationHttps Access configuration Port configuration Temporarily disabling a portLayer 2 configuration Port link configurationSpanning-tree mstp Spanning-tree mrst ModeSpanning-tree mrst Enable NameCommon Internal Spanning Tree configuration Cist bridge configurationCist port configuration Spanning Tree configuration Bridge Spanning Tree configuration Spanning Tree port configuration Trunk configuration Forwarding Database configurationStatic FDB configuration Layer 3 configuration Vlan configurationIP interface configuration Default Gateway configurationIgmp configuration Address Resolution Protocol configurationIgmp snooping configuration Igmp static multicast router configuration Igmp filtering configurationIgmp filtering port configuration Domain Name System configurationIgmp filter definition Rmon history configuration Remote Monitoring configurationRmon event configuration Rmon alarm configuration Port mirroring Uplink Failure Detection configurationPort-based port mirroring Link to Monitor configuration Configuration DumpFailure Detection Pair configuration Link to Disable configurationSaving the active switch configuration Restoring the active switch configurationOperations Commands Operations-level port optionsDownloading new software to the switch Boot OptionsUpdating the switch software image Router# copy tftp image1image2boot-imageSwitch# copy image1image2boot-image tftp Uploading a software image from the switchRouterconfig# boot image image1image2 Selecting a software image to runResetting the switch Selecting a configuration blockAccessing the AOS CLI System maintenance Maintenance CommandsForwarding Database maintenance ARP cache maintenance Debugging optionsIgmp Mrouter maintenance Igmp Snooping maintenanceUuencode flash dump Switch# clear flash-dump Panic commandSwitch# copy flash-dump tftp server filename 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.