Netstream export formats, Netstream sampling and filtering, Netstream sampling – H3C Technologies H3C MSR 50 User Manual
Page 107: Netstream filtering, Netstream configuration task list, Ng and filtering, Nets, Netstream sampli, Tream configuration task list, Netst
In an aggregation mode with AS, if the packets are not forwarded according to the BGP routing table,
the statistics on the AS number cannot be obtained.
In the aggregation mode of ToS-BGP-n
routing table, the statistics on the BGP
exthop, if the packets are not forwarded according to the BGP
next hop cannot be obtained.
NetSt
NetS
one of the following formats:
xtended flexibly.
tes that have different statistics fields.
xt hop and MPLS information.
ng and filtering
NetSt
ation by collecting statistics on fewer
stics to be transferred also reduces the impact on the device performance. For
mpling, see "Configuring sampler."
NetSt
to collect statistics on packets that match the criteria.
rposes. The NetStream filtering by QoS
NetS
fo
S policy to select the target data.
figure NetStream sampling.
•
timer for NetStream flow aging.
•
To reduce the bandwidth consumption of NetStream data export, configure NetStream
aggregation.
ream export formats
tream exports data in UDP datagrams in
•
Version 5—Exports original statistics collected based on the 7-tuple elements. The packet format is
fixed and cannot be e
•
Version 8—Supports NetStream aggregation data export. The packet formats are fixed and cannot
be extended flexibly.
•
Version 9—The most flexible format. Users can define templa
The template feature supports different statistics, such as BGP ne
NetStream sampli
ream sampling
NetStream sampling basically reflects the network traffic inform
packets. The reduced stati
more information about sa
ream filtering
NetStream filtering is implemented by referencing an ACL or by applying a QoS policy to NetStream.
NetStream filtering enables a NetStream module
The filtering allows for selecting specific data flows for statistics pu
policy is flexible and suits various applications.
tream configuration task list
Be re you configure NetStream, verify that the following configurations are proper, as needed:
•
Make sure which device you want to enable NetStream on.
•
If multiple service flows are passing the NDE, use an ACL or Qo
•
If enormous traffic flows are on the network, con
•
Decide which export format is used for NetStream data export.
Configure the
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