Switch Router Adapter Owner's Manual

Introduction to the SP Switch Router Adapter card

SNMP on the SP Switch Router Adapter card

SP Switch Router Adapter Guide - 1.4 Update 2 October 22, 1999 1-17

SNMP conﬁguration overview

After the SP Switch Router is powered on and booted, the network administrator logs on to

conﬁgure the router as a system. The following is a description of the steps that can be taken

during router conﬁguration. The actual procedure is described in Chapter 2.

The conﬁguration for the snmpd daemon must be updated to identify the SP SNMP

Manager(s) that will conﬁgure and maintain status of the SP Switch Router Adapter card. The

community name to be used for communications with the SP SNMP Manager must be the

same community name that is speciﬁed in the Extension Node conﬁguration data on the SP

control workstation where the SP SNMP Manager resides.

If no community name is speciﬁed on the SP control workstation, specify spenmgmt as the

community name for the SP SNMP Manager. The community name must allow read, write,

and trap capabilities. All community names used to communicate with managers other than the

SP SNMP Manager(s) should be restricted to read-only and trap capabilities. Traps should be

sent to the same UDP port on which the SP SNMP Manager is listening. This port will most

often be port number 162.

Using a UNIX editor, the administrator edits the conﬁguration ﬁles required for each type of

media card. Conﬁguration parameters for the SP Switch Router Adapter card could also be

entered in the

/etc/grdev1.conf ﬁle at this time if the card is not going to be conﬁgured via

SNMP. Save this ﬁle using the grwrite command.

The administrator now resets the SP Switch Router system to actually install the conﬁguration

parameters. During a reset, system daemons restart and reread their ﬁles. The media cards also

boot, loading their software, conﬁguration information, and the current route table.

Each time the SP Switch Router software boots, mib2d starts up. Unless the administrator has

already entered SP Switch Router Adapter conﬁguration values in /etc/grdev1.conf, ﬁle

parameters for SP Switch Router Adapter cards will all contain null values.

mib2d generates and sends a coldStart/warmStart trap message to all SNMP Managers

conﬁgured. It creates and initializes its MIB object instances. To support SET commands for

any instances of the SP Switch Router Adapter conﬁguration objects, mib2d creates an

ibmSPDepNodeTable . The table contains an ibmSPDepNodeEntry MIB entry (there are 16

of these) for each available media card slot in various SP Switch Router models.