Ifstacktable Entries; Snmp Configuration; Table 8.3: Physical Link Status On Base Switch - HP bh5700 User Manual

status is down, then the operational status will be down independent of the underlying link state.
You must ifconfig up the zres to see the operational link status for a zre. When the
administrative status is up, the operational status is dependent on the underlying physical state.
For example, Table 8.3 shows that if zhp0 contains zre1 and zre2, the it would also be true for
the operational status (given the administrative status is up on zre1, zre2, and zhp0).
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.
Ethernet Switch Blade User's Guide
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Link and SNMP Status
Physical Link Status
zre1 zre2
down down
down up
up down
up up

Table 8.3: Physical Link Status on Base Switch

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SNMP Operational Status
zre1 zre2 zhp0
down down down
down up up
up down up
up up up
release 3.2.2j page 135