report-zero-oif-gw-on-discard
Syntax
report-zero-oif-gw-on-discard;
Hierarchy Level
[edit chassis fpc slot-number inline-services]
Description
(MX Series
only) For inline active flow monitoring, for only the flow records for
rejected, discarded, and policed flows, set the flow record value to 0
(zero) for the IPFIX information elements
ipNextHopIPv6Address (Element ID 62),
egressInterface (Element ID 14), and
ipNextHopIPv4Address (Element ID 15). If the
report-zero-oif-gw-on-discard statement is not
configured, the flow records display the available information for these
elements, which is the default behavior for not only rejected, discarded, or
policed flows, but also for all other flows. The available information for
these elements is the result of a route lookup in the forwarding table, and
is reported in the OIF/GW fields in the export flow
record.
This
statement does not apply to flows that are policed and sampled by the
Packet Forwarding Engine for egress interfaces. After you configure
the report-zero-oif-gw-on-discard statement, each
sampled packet updates the forwarding action of that flow in the flow
record. That is, the last sampled packet of the flow just before
export determines the forwarding action of that flow. For example, in
the case of a rate-limiting policer, the forwarding action taken on a
flow is not deterministic. The flow is treated either as forwarded or
as policed based on the forwarding action of the last sampled packet
of that flow.
You configure this statement to help you track what traffic is being dropped.
Default
The flow records display
the available information for the information elements
ipNextHopIPv6Address (Element ID 62),
egressInterface (Element ID 14), and
ipNextHopIPv4Address (Element ID 15).
Required Privilege Level
Release Information
Statement introduced in Junos OS Release 15.1F7.