Accton Technology 24/48-Port, ES4548D manual Specifying Trap Managers and Trap Types, Command Usage

11 Simple Network Management Protocol

Specifying Trap Managers and Trap Types

Traps indicating status changes are issued by the switch to specified trap managers. You must specify trap managers so that key events are reported by this switch to your management station (using network management platforms such as HP OpenView). You can specify up to five management stations that will receive authentication failure messages and other trap messages from the switch.

Command Usage

•If you specify an SNMP Version 3 host, then the “Trap Manager Community String” is interpreted as an SNMP user name. If you use V3 authentication or encryption options (authNoPriv or authPriv), the user name must first be defined in the SNMPv3 Users page (page 11-8). Otherwise, the authentication password and/or privacy password will not exist, and the switch will not authorize SNMP access for the host. However, if you specify a V3 host with the no authentication (noAuth) option, an SNMP user account will be automatically generated, and the switch will authorize SNMP access for the host.

•Notifications are issued by the switch as trap messages by default. The recipient of a trap message does not send a response to the switch. Traps are therefore not as reliable as inform messages, which include a request for acknowledgement of receipt. Informs can be used to ensure that critical information is received by the host. However, note that informs consume more system resources because they must be kept in memory until a response is received. Informs also add to network traffic. You should consider these effects when deciding whether to issue notifications as traps or informs.

To send an inform to a SNMPv2c host, complete these steps: 1.Enable the SNMP agent (page 11-2).

2.Enable trap informs as described in the following pages.

3.Create a view with the required notification messages (page 11-16). 4.Create a group that includes the required notify view (page 11-12).

To send an inform to a SNMPv3 host, complete these steps: 1.Enable the SNMP agent (page 11-2).

2.Enable trap informs as described in the following pages.

3.Create a view with the required notification messages (page 11-16). 4.Create a group that includes the required notify view (page 11-12). 5.Specify a remote engine ID where the user resides (page 11-7). 6.Then configure a remote user (page 11-10).

Command Attributes

•Trap Manager Capability – This switch supports up to five trap managers.

•Current – Displays a list of the trap managers currently configured.

•Trap Manager IP Address – IP address of a new management station to receive notification messages.

•Trap Manager Community String – Specifies a valid community string for the new trap manager entry. Though you can set this string in the Trap Managers table, we recommend that you define this string in the SNMP Configuration page (for

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