Users Guide

Traffic Flow Portlet | Traffic Flow Analyzer
544 OMNM 6.5.3 User Guide
the values 3, 15, 44, 89, and 248 would be added together into the "Other" category, but their
protocol, application, and exporter data would be preserved. So these smaller flows would only
actually be aggregated if they were all for the same exporter, protocol and application.
To enable this feature, enter a value for Max Conversational Flows Per Minute. Enter the highest
number of conversational flows that you believe your system is capable of handling per minute.
Note that a value of 0 disables this feature so that everything will be processed.
Domain Name Resolution
Initially the Name column of senders, receivers, endpoints and conversations shows the IP address.
There is a task that is configured to execute periodically to resolve these IP addresses to domain
names. This works as long as a DNS server is available within the network. When an IP address is
resolved to a domain name, this name is shown in the Name column when viewing senders,
receivers, endpoints and conversations. By default, this task executes every 24 hours. To configure
how this task is executed, navigate to the Schedules portlet and search for an item where the
description contains the text "Resolve hostnames using DNS". From here you can edit the
frequency of the execution of this task and you can also disable this feature if you wish.
There is also an option to perform this DNS lookup for public IP addresses but to exclude private
IP addresses. To disable private IP DNS resolution while keeping this feature enabled for public IP
addresses, add the following line to installed.properties and restart the application server:
NetFlowRetentionMBean.EnabledPrivateIPDNSLookup=false
You can also manually execute this task by navigating to the Actions portlet and searching for an
item where the name contains "Resolve DNS Hostnames". From here you can execute this action
on demand rather than waiting for the scheduled task to execute. When you execute this task
manually, you have the option to re-do the DNS resolution for all endpoints, including those that
were previously resolved. Caution: Executing this action with this option selected can be very time
consuming and resource intensive.
Resolving Autonomous System (AS) Numbers
OpenManage Network Manager provides local resolution of autonomous system numbers (ASN)
based on static mapping of AS number registrations and it also performs remote resolution of these
names for AS numbers that are not in the local file. It also supports user overrides of the default AS
number to name mappings. To do this, configure properties you can find in the
\owareapps\trafficanalyzer\lib\ta.properties file. Remember, best practice is to override properties as
described in Overriding Properties on page {page }.