Coyote Point Systems Equalizer Spezifikationen PDF herunterladen (Seite 198)

Using the GUI

least probe interval seconds apart. This value is solelya

target; the monitoring processadjustsitself based on a number

of factors, including system load. The default value is 20

seconds.

Retry Interval (ms)

Thisis the time (in ms) between failed failover peer probes.

Failed Probe Count

Thisis the maximum number of failed failover peer probes. The

global Failed Probe Count is not used untilALL heartbeating

subnets have at least one strike. Once each subnet has a strike,

we failover when the number of failed heartbeats across all

heartbeating subnets isequal to or greater than the global

Failed Probe Count. (Refer to"Configuring VLAN

(Subnet) Failover Settings (GUI)" on page 441and

"Configuring VLAN (Subnet) Failover Settings (CLI)

" on page 439.

ICMP Probe Maximum Tries

Enablesprobing servers using ICMP echo (ping) probes.

These probes are 5 seconds apart. If a server does not respond

to an ICMP prebend it has attempted to probe the number of

times specified, it ismarked

down

onlyif there are no other

probes (TCP, ACV, or server agent) active for the cluster.

Global Service Settings Flags

These are the Set the globally permitted VLAN services. (HTTP, HTTPS, SNMP, SSH) Use the checkboxes to

enable.

SNMP

The Simple Network Management Protocol (SNMP) is an internet standard that allows a management station to

monitor the status of a device over the network. SNMP organizes information about the Equalizer and provides a

standard way to help gather that information. Using SNMP requires:

l An SNMP agent running on the system to be monitored.

l A Mangement information Base (MIB) database on the system to be monitored.

l An SNMP management station running on the same or another system.

An SNMP agent and MIB databases are provided on Equalizer Models E350GX and above, implemented for

SNMPv1 and SNMPv2c. If using a MIB browser, use SNMPv2c to ensure returned statistics.

A management station is not provided with Equalizer and must be obtained from a third party supplier. The

management station is often used primarily to browse through the MIB tree, and so is sometimes called a MIB

browser. One such management station that is available in a free personal edition is the iReasoning MIB Browser,

available from www.ireasoning.com.

A MIB database is a hierarchical tree of variables whose values describe the state of the monitored device. A

management station that want to browse the MIB database on a device sends a request to the SNMP agent

running on the device. The agent queries the MIB database for the variables requested by the management station,

and then sends a reply to the management station.

With SNMP, you can monitor the following information from the Equalizer MIBs:

Static configuration information, such as:

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