NEC N8406-022 manual Interface statistics

Page 44

Table 33 Ethernet statistics for port

Statistics

Description

dot3StatsFrameTooLongs

A count of frames received on a particular interface that exceeds

 

the maximum permitted frame size.

 

The count represented by an instance of this object is incremented

 

when the frameTooLong status is returned by the MAC service to

 

the LLC (or other MAC user).

 

Received frames for which multiple error conditions obtained are,

 

according to the conventions of IEEE 802.3 Layer Management,

 

counted exclusively according to the error status presented to the

 

LLC.

dot3StatsInternalMacReceiveErrors

A count of frames for which reception on a particular interface fails

 

due to an internal MAC sublayer receive error.

 

A frame is only counted by an instance of this object if it is not

 

counted by the corresponding instance of the

 

dot3StatsFrameTooLongs object, the dot3StatsAlignmentErrors

 

object, or the dot3StatsFCSErrors object.

 

The precise meaning of the count represented by an instance of

 

this object is implementation specific. In particular, an instance of

 

this object may represent a count of received errors on a particular

 

interface that are not otherwise counted.

Interface statistics

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

show interface gigabitethernet <port number> interface-counters

Command mode: All

Interface statistics for port 1:

 

 

ifHCIn Counters

ifHCOut Counters

Octets:

51697080313

51721056808

UcastPkts:

65356399

65385714

BroadcastPkts:

0

6516

MulticastPkts:

0

0

Discards:

0

0

Errors:

0

21187

 

 

 

The following table describes the interface (IF) statistics for a selected port:

Table 34 Interface statistics for port

Statistics

Description

Octets—IfHCIn

The total number of octets received on the interface, including framing

 

characters.

UcastPkts—IfHCIn

The number of packets, delivered by this sublayer to a higher sublayer, which

 

were not addressed to a multicast or broadcast address at this sublayer.

BroadcastPkts—IfHCIn

The number of packets, delivered by this sublayer to a higher sublayer, which

 

were addressed to a broadcast address at this sublayer.

MulticastPkts—IfHCIn

The total number of packets, delivered by this sublayer. These are the packets

 

that higher-level protocols requested to be transmitted, and which were

 

addressed to a multicast address at this sublayer, including those that were

 

discarded or not sent.

 

For a MAC layer protocol, this includes both group and functional addresses.

Discards—IfHCIn

The number of inbound packets which were chosen to be discarded even though

 

no errors were detected to prevent their being delivered to a higher-layer

 

protocol. One possible reason for discarding such a packet could be to free up

 

buffer space.

Errors—IfHCIn

For packet-oriented interfaces, the number of inbound packets that contained

 

errors preventing them from being delivered to a higher-layer protocol.

 

For character-oriented or fixed-length interfaces, the number of inbound

 

transmission units that contained errors preventing them from being deliverable to

 

a higher-layer protocol.

Octets—IfHCOut

The total number of octets transmitted out of the interface, including framing

 

characters.

Statistics commands 44

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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.