Use throughput graphs, driver statistics, and the SNMP
GET request from the Network IPS appliance to gather information for
capacity planning.
Throughput
graphs
Throughput graphs show
the sum of traffic, in megabits, into or going out of your network.
Throughput graphs also show the totals for unanalyzed traffic and
secured traffic that is moving through your network. Unanalyzed traffic
is not inspected by the Protocol Analysis Module (PAM). Secured traffic
is inspected by PAM, but does not necessarily mean that the traffic
is suspect. You can customize these graphs to show statistics for
an hour, a day, a week, or a month. Choose the time period that best
helps you to view the capacity of traffic and analysis on your appliance.
Find
throughput graphs in .
Driver statistics
Driver statistics help
with capacity planning because they report the totals for secured
traffic, unanalyzed traffic, packets received, and packets that are
transmitted for drivers. The four specific driver statistics that
help with capacity planning are:
- adapter.bytes.secured:
Lists the total number
of bytes secured.
- adapter.bytes.unanalyzed:
Lists the total
number of bytes unanalyzed.
- adapter.0.packets.received:
Lists the number
of packets that are received on adapter 0 (adapter A).
- adapter.0.packets.transmitted:
Lists the
number of packets transmitted (forwarded from inline partner or injected)
on adapter 0 (adapter A).
Find driver statistics in .
SNMP GET request and
the MIB file
The SNMP
GET request helps with capacity planning because you can configure
it to retrieve statistics from the management information base (MIB)
file. The MIB file includes information
about these items:
- network.driver.stats:
Contains all of the
statistics that are found in .
- protection.analysis.stats:
Contains all of
the statistics that are found in .
- network.protection.stats:
Contains all of
the statistics that are found in .
- ipmi.chassis.status (for
GX7000 series appliances
only): Contains information about the status of the chassis along
with information about power failures and driver failures. You can
view this status in the Intelligent Platform Management Interface
(IPMI).
Configure the SNMP GET request in . Then, use an SNMP tool to get the MIB file contents
from
MIB: NET-SNMP-EXTEND-MIB:nsExtendOutput1Table.
Note: This
capacity planning feature is available only when the SNMP GET request
is enabled and configured.