Znyx Networks bh5700 manual Snmp Configuration, Link and Snmp Status, IfStackTable Entries

Link and SNMP Status

Physical Link Status		SNMP Operational Status
zre1	zre2	zre1	zre2	zhp0
down	down	down	down	down
down	up	down	up	up
up	down	up	down	up
up	up	up	up	up

Table 5.3: Link and SNMP Status

The administrative status is directly controlled by ifconfig up/down. The administrative status of the zhps and zres do not affect each other.

ifStackTable Entries

In the actual ifStackTable as shown in the MIB walk the following two OIDs (which denote ifIndexes) show the relationships.

ifMIB.ifMIBObjects.ifStackTable.ifStackEntry.ifStackStatus.0.1 = active(1)

ifMIB.ifMIBObjects.ifStackTable.ifStackEntry.ifStackStatus.0.2 = active(1)

If they are X.Y then

•if X = 0 there is nothing above this interface

•if Y = 0 there is nothing below this interface

otherwise interface X has interface Y as a logical constituent.

SNMP Configuration

The SNMP agent is called snmpd and is started by default from the Linux boot up script /etc/rcZ.d/S75snmpd. If you do not wish to start snmpd, remove etc/rcZ.d/S75snmpd.

Configuration of the OpenArchitect switch SNMP agent is the same as configuration of any standard Linux host that uses the NET-SNMP agent. Configuration information for persistent data and security information is kept in snmpd.conf under the default SNMP configuration location, which for the OpenArchitect switch is /usr/share/snmp. snmpd.conf is the location to change sys information such as the syslocation and syscontact, as well as permissions such as the rocommunity or rwcommunity.

NOTE: For NET-SNMP agents, these objects (sysLocation.0, sysContact.0 and sysName.0) ordinarily are read-write. However, specifying the value for one of these objects by giving the appropriate token in snmpd.conf makes the corresponding object read-only, and attempts to set the value of the object will result in a notWritable error

Ethernet Switch Blade User's Guide release 3.2.2j page 81