DNS statistics

show ip dns counters

Command mode: All except User EXEC

DNS statistics:

 

 

 

dnsInRequests:

0

dnsOutRequests:

0

dnsBadRequests:

0

 

 

 

 

 

 

The following table describes the Domain Name System (DNS) statistics:

Table 42 DNS statistics

Statistic

Description

dnsInRequests

The total number of DNS request packets that have been received.

dnsOutRequests

The total number of DNS response packets that have been transmitted.

dnsBadRequests

The total number of DNS request packets received that were dropped.

ICMP statistics

The following command displays ICMP statistics:

show ip icmp counters

Command mode: All except User EXEC

ICMP statistics:

 

 

 

icmpInMsgs:

245802

icmpInErrors:

1393

icmpInDestUnreachs:

41

icmpInTimeExcds:

0

icmpInParmProbs:

0

icmpInSrcQuenchs:

0

icmpInRedirects:

0

icmpInEchos:

18

icmpInEchoReps:

244350

icmpInTimestamps:

0

icmpInTimestampReps:

0

icmpInAddrMasks:

0

icmpInAddrMaskReps:

0

icmpOutMsgs:

253810

icmpOutErrors:

0

icmpOutDestUnreachs:

15

icmpOutTimeExcds:

0

icmpOutParmProbs:

0

icmpOutSrcQuenchs:

0

icmpOutRedirects:

0

icmpOutEchos:

253777

icmpOutEchoReps:

18

icmpOutTimestamps:

0

icmpOutTimestampReps:

0

icmpOutAddrMasks:

0

icmpOutAddrMaskReps:

0

 

 

 

 

The following table describes the Internet Control Messaging Protocol (ICMP) statistics:

Table 43 ICMP statistics

Statistics

Description

icmpInMsgs

The total number of ICMP messages which the switch received. Note that this counter

 

includes all those counted by icmpInErrors.

icmpInErrors

The number of ICMP messages which the switch received but determined as having

 

ICMP specific errors (for example bad ICMP checksums and bad length).

icmpInDestUnreachs

The number of ICMP Destination Unreachable messages received.

icmpInTimeExcds

The number of ICMP Time Exceeded messages received.

icmpInParmProbs

The number of ICMP Parameter Problem messages received.

icmpInSrcQuenchs

The number of ICMP Source Quench (buffer almost full, stop sending data) messages

 

received.

icmpInRedirects

The number of ICMP Redirect messages received.

icmpInEchos

The number of ICMP Echo (request) messages received.

icmpInEchoReps

The number of ICMP Echo Reply messages received.

icmpInTimestamps

The number of ICMP Timestamp (request) messages received.

icmpInTimestampReps

The number of ICMP Timestamp Reply messages received.

icmpInAddrMasks

The number of ICMP Address Mask Request messages received.

icmpInAddrMaskReps

The number of ICMP Address Mask Reply messages received.

icmpOutMsgs

The total number of ICMP messages which this switch attempted to send. Note that

 

this counter includes all those counted by icmpOutErrors.

icmpOutErrors

The number of ICMP messages that this switch did not send due to problems

 

discovered within ICMP such as a lack of buffer. This value should not include errors

 

discovered outside the ICMP layer such as the inability of IP to route the resultant

 

datagram. In some implementations there may be no types of errors that contribute to

 

this counter's value.

Statistics commands 49

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NEC N8406-022 manual Icmp statistics, DNS statistics DnsInRequests DnsOutRequests DnsBadRequests

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.