Multi-factor authentication (MFA) is an authentication method that requires the user to provide two or more verification factors to gain access to a resource such as an application, online account, or a VPN. MFA is a core component of a strong identity and access management (IAM) policy1. MFA is important to implement inside of an organization because it can prevent brute force attacks from being successful. A brute force attack is a type of cyberattack that tries to guess the user's password or PIN by trying different combinations until it finds the correct one. This can be done manually or with automated tools. MFA can stop brute force attacks by requiring an additional factor of authentication that the attacker does not have, such as a phone, a token, a biometric, or a location. MFA can also reduce the risk of other types of attacks that rely on stealing or compromising the user's credentials, such as phishing, keylogging, or credential stuffing. References := 1:
What is Multi-Factor Authentication (MFA)? | OneLogin

The syntax of this command is shown below:
snmp-server group [group-name {v1 | v2c | v3 [auth | noauth | priv]}] [read read-view] [write write-view] [notify notify-view] [access access-list] The command above restricts which IP source addresses are allowed to access SNMP functions on the router. You could restrict SNMP access by simply applying an interface ACL to block incoming SNMP packets that don't come from trusted servers. However, this would not be as effective as using the global SNMP commands shown in this recipe. Because you can apply this method once for the whole router, it is much simpler than applying ACLs to block SNMP on all interfaces separately. Also, using interface ACLs would block not only SNMP packets intended for this router, but also may stop SNMP packets that just happened to be passing through on their way to some other destination device.

The telemetry information consists of three types of data:
+ Flow information: This information contains details about endpoints, protocols, ports, when the flow started, how long the flow was active, etc.
+ Interpacket variation: This information captures any interpacket variations within the flow. Examples include variation in Time To Live (TTL), IP and TCP flags, payload length, etc
+ Context details: Context information is derived outside the packet header. It includes details about variation in buffer utilization, packet drops within a flow, association with tunnel endpoints, etc.
The telemetry information consists of three types of data:
+ Flow information: This information contains details about endpoints, protocols, ports, when the flow started, how long the flow was active, etc.
+ Interpacket variation: This information captures any interpacket variations within the flow. Examples include variation in Time To Live (TTL), IP and TCP flags, payload length, etc
+ Context details: Context information is derived outside the packet header. It includes details about variation in buffer utilization, packet drops within a flow, association with tunnel endpoints, etc.
Reference:
cisco_nexus_9300_ex_platform_switches_white_paper_uki.pdf
The telemetry information consists of three types of data:
+ Flow information: This information contains details about endpoints, protocols, ports, when the flow started, how long the flow was active, etc.
+ Interpacket variation: This information captures any interpacket variations within the flow. Examples include variation in Time To Live (TTL), IP and TCP flags, payload length, etc
+ Context details: Context information is derived outside the packet header. It includes details about variation in buffer utilization, packet drops within a flow, association with tunnel endpoints, etc.
cisco_nexus_9300_ex_platform_switches_white_paper_uki.pdf

Explanation The telemetry information consists of three types of data: + Flow information: This information contains details about endpoints, protocols, ports, when the flow started, how long the flow was active, etc. + Interpacket variation: This information captures any interpacket variations within the flow. Examples include variation in Time To Live (TTL), IP and TCP flags, payload length, etc + Context details: Context information is derived outside the packet header. It includes details about variation in buffer utilization, packet drops within a flow, association with tunnel endpoints, etc. Reference: https://www.cisco.com/c/dam/global/en_uk/products/switches/ cisco_nexus_9300_ex_platform_switches_white_paper_uki.pdf The telemetry information consists of three types of data:
+ Flow information: This information contains details about endpoints, protocols, ports, when the flow started, how long the flow was active, etc.
+ Interpacket variation: This information captures any interpacket variations within the flow. Examples include variation in Time To Live (TTL), IP and TCP flags, payload length, etc
+ Context details: Context information is derived outside the packet header. It includes details about variation in buffer utilization, packet drops within a flow, association with tunnel endpoints, etc.
Reference:
Explanation The telemetry information consists of three types of data: + Flow information: This information contains details about endpoints, protocols, ports, when the flow started, how long the flow was active, etc. + Interpacket variation: This information captures any interpacket variations within the flow. Examples include variation in Time To Live (TTL), IP and TCP flags, payload length, etc + Context details: Context information is derived outside the packet header. It includes details about variation in buffer utilization, packet drops within a flow, association with tunnel endpoints, etc. Reference: https://www.cisco.com/c/dam/global/en_uk/products/switches/ cisco_nexus_9300_ex_platform_switches_white_paper_uki.pdf