What is the difference between ICMP and SNMP?

In terms of performance management metrics, ICMP or ping is used for availability calculations and latency or response time. SNMP is used for almost all of the other statistics, including CPU, memory, buffers, interface traffic and errors and many, many more statistics.

What are the main functions of ICMP?

ICMP messages communicate information about network connectivity issues back to the source of the compromised transmission. It sends control messages such as destination network unreachable, source route failed, and source quench. It uses a data packet structure with an 8-byte header and variable-size data section.

What is ICMP type and code?

The first byte specifies the type of ICMP message. For example, type 8 is used for an ICMP request and type 0 is used for an ICMP reply. We use type 3 for destination unreachable messages. The second byte called code specifies what kind of ICMP message it is.

What is difference between ping and ICMP?

Ping is a tool commonly used to find the status of a device on a network. Ping is based on the ICMP protocol. When a Ping process request is sent out as an ICMP echo to the target device, it replies with an ICMP echo reply if the device is available.

Is Ping part of SNMP?

There is no special “ping” command in SNMP – it’s just a name for a tool used to scan whether SNMP is alive at some target device (by retrieving some common MIB values). So as you would expect the implementation differs too as a consequence of it being a useful tool rather than a standard.

Why is SNMP used?

Simple Network Management Protocol (SNMP) is an Internet Standard protocol used to monitor and manage the network devices connected over an IP. Different devices like routers, switches, firewalls, load balancers, servers, CCTV cameras, and wireless devices communicate using SNMP.

Is ICMP an IP protocol?

ICMP is actually a user of the IP protocol–in other words, ICMP messages must be encapsulated within IP packets. However, ICMP is implemented as part of the IP layer. So ICMP processing can be viewed as occurring parallel to, or as part of, IP processing.

Is ICMP faster than TCP?

TCP is a transport protocol, and it is optimized in a host OS to give good service to the applications using its service. TCP should always perform better than ICMP.

What is TTL in ping?

The TTL field, Time To Live, of an IP packet represents the maximum number of IP routers that the packet can go through before being discarded.