Configuring Traffic Distribution Based On The Eth-Trunk; Establishing The Configuration Task - Huawei Quidway S7700 Configuration Manual - Qos

Quidway S7700 Smart Routing Switch
Configuration Guide - QoS
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4.3 Configuring Traffic Distribution Based on the Eth-
Trunk
This section describes how to configure traffic distribution based on the Eth-Trunk.

4.3.1 Establishing the Configuration Task

Applicable Environment
The traffic distribution device captures the packets on a network and forwards them to a packet
analysis device or a computer that runs the packet analysis software for analyzing, recording
and processing. Because of the high link bandwidth on the backbone network, a packet analysis
device cannot analyze or process a large amount of traffic. Therefore, the traffic captured on the
network cannot be forwarded to a packet analysis device for analyzing and processing. In this
case, the traffic distribution device needs to distribute the traffic to suit the processing capability
of the packet analysis device.
As shown in
Figure 4-1 Traffic distribution based on the Eth-Trunk
Issue 01 (2011-07-15)
During data packets forwarding, the S7700 can ensure the integrity of data packets and
retain the original TTL value of data packets.
Currently, only the E-series boards and X12SA boards can retain the original TTL value
of data packets.
Query of the outbound interface of traffic
In the scenario where services are distributed, you need to check the server where the special
traffic is distributed, that is, the outbound interface on the traffic distribution device where
the traffic is sent out. The S7700 provides easy query of the outbound interface of traffic.
According to the entered quintuple information, the S7700 obtains the outbound interface
of traffic matching the quintuple information.
Figure 4-1, Switch A is the traffic distribution switch.
S9300B
S9300A
GE 1/0/1
GE 1/0/2
Server 1 Server 2
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Upstream
Traffic Splitter
S9300C
XGE 2/0/1
GE 1/0/4
Eth-Trunk 1
GE 1/0/3
Server 3 Server 4
4 Traffic Distribution Configuration
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