CHAPTER 13: Operation via SNMP
153
13. Operation via SNMP
If SNMP Access Parameters have been dened as described in Section 5.9.6, then
you will be able to manage user accounts, control power and reboot switching and
display unit status via SNMP. This section describes SNMP communication with the
Outlet Managed PDU, and lists some common commands that can be employed to
manage users, control switching and reboot actions and display unit status.
13.1. Outlet Managed PDU SNMP Agent
The Outlet Managed PDU’s SNMP Agent supports various conguration, control,
status and event notication capabilities. Managed objects are described in the
EMPC-OMPDU-MIB.txt le, which can be found on the CDROM included with the
Outlet Managed PDU and can be compiled for use with your SNMP client.
13.2. SNMPv3 Authentication and Encryption
The major limitations of SNMPv2 were the failure to include proper username/
password login credentials (v2 only used a password type of login, i.e., community
name) and the exclusion of encryption for data moving over the internet. SNMPv3
addresses both of these shortcomings.
For SNMPv3, the Outlet Managed PDU supports two forms of Authentication/
Privacy: Auth/noPriv which requires a username/password, but does not encrypt data
going over the internet and Auth/Priv which requires a username/password AND
encrypts the data going over the internet using DES (AES is not supported at this
time). For the Password protocol, the Outlet Managed PDU supports either MD5
or SHA1.