Avaya Inc. ā External Distribution
1.2 DSCP/TOS
Please note that DSCP/TOS value collected by IPFIX depends on how a port is configured on an
Ethernet Routing Switch. For example, if a port is configured as untrusted, the TOS/DSCP value
is remarked for 0x00. Hence, all IPFIX flows collected by IPFIX will also display the appropriate
value. If filters are used to remark traffic, then IPFIX will display the DSCP/TOS value according
to how the filter or filters remark the traffic.
1.3 IPFIX with Filters
By default, IPFIX will collect all traffic as shown in table 1 above. Filters can be used with IPFIX
on the Ethernet Routing Switch 8600. This allows IPFIX to collect traffic only for specific flows
according to the traffic filter or filters configured or simply to cut down on the amount of traffic
collected. Note that this feature is not supported on the Ethernet Routing Switch 8300.
1.4 IPFIX Collectors
Collectors can be enabled or disabled on the switch. Up to two collectors are supported and if
both are enabled, the same information is sent to both collectors. Exported traffic from the switch
is in Netfow v9 format using UDP as the transport protocol using UDP port 9995. The export
interval, which specifies the interval at which updates are sent to the collector, is configurable.
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