Hello, everyone!
Today, I want to start to explain the GPON ONU basic operations. Now, in this article, I will explain the SNMP profile. This is the last GPON ONU profile. Let’s get started.
As I said in the previous articles, GPON ONU profiles have 4 profiles:
DBA profile,
Line profile,
Service profile, and
SNMP profile.
These parameters need to be configured for the GPON access service.
SNMP is an abbreviation of Simple Network Management Protocol. SNMP is a layer 5 protocol or application layer. It is one of the most famous and important protocols. There are three versions of the SNMP protocol, SNMP v1, SNMP v2C, and SNMP v3. Versions v1 and v2C are not recommended because they are unsafe. On the other hand, v3 has security, so it is recommended as such.
The SNMP protocol uses the UDP protocol to send information, using two ports 161 and 162. The SNMP architecture consists of SNMP Manager or SNMP NMS (Network Management System), SNMP Agent and MIB (Management Information Base). The simplest explanation of the SNMP protocol is as follows. The SNMP Manager sends requests to the SNMP Agent to read and write information to the MIB. UDP port number 161 is then used. The SNMP Agent only executes commands. The SNMP Agent only sends messages to the SNMP Manager in case of some problems. These are TRAP messages and then UDP port number 162 is used.
The MIB is a database of managed devices, it contains information that is being read or where enrollment is being made.
According to the GPON FTTH solution, the SNMP protocol exists between the NMS server (SNMP Manager) and the OLT (SNMP agent). In order to realize this, it is necessary to configure READ, WRITE and TRAP on the OLT (SNMP agent).
This was general information about the SNMP protocol, I also wrote a special series of articles about the SNMP protocol.
Now, this is an SNMP profile. We use this profile for ONU. The next command is the command for adding an SNMP profile:
The parameters will take effect after the SNMP profile is added and when the ONU is bound to the SNMP management profile. ONU management is enabled via SNMP.
This is the end of this article. In the next article, I will continue to write about this topic >> GPON ONU basic operations (6): Process of adding an ONU.
Thank you!
