Alcatel-Lucent 7750 SR-OS, Руководство по настройке

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Page 630 7750 SR OS Router Configuration Guide
Specifying Cflowd Options on an IP Interface
When cflowd is enabled on an interface, all packets forwarded by the interface are subject to
analysis according to the global cflowd configuration and sorted according to the collector
configuration(s).
Refer to Table 20, Cflowd Configuration Dependencies, on page 634 for configuration
combinations.
When the cflowd interface option is configured in the config>router>interface context, the
following requirements must be met to enable traffic sampling on the specific interface:
1. Cflowd must be enabled.
2. At least one cflowd collector must be configured and enabled.
3. The interface>cflowd interface option must be selected. For configuration information,
refer to the Filter Policy Overview section of the 7750 SR OS Router Configuration Guide .
4. To omit certain types of traffic from being sampled when the interface sampling is
enabled, the config>filter>ip-filter>entry>interface-disable-sample option may be
enabled via an ip-filter or ipv6-filter. The filter must be applied to the service or network
interface on which the traffic to be omitted is to ingress the system.
Interface Configurations
CLI Syntax:
config>router>if#
cflowd {acl|interface}
no cflowd
Depending on the option selected, either
acl
or
interface
, cflowd extracts traffic flow samples
from an IP filter or an interface for analysis. All packets forwarded by the interface are analyzed
according to the cflowd configuration.
The acl
option must be selected in order to enable traffic sampling on an IP filter. Cflowd
(
filter-sample
) must be enabled in at least one IP filter entry.
The interface
option must be selected in order to enable traffic sampling on an interface. If
cflowd is not enabled (
no cflowd
) then traffic sampling will not occur on the interface.