Example for Configuring sFlow
Applicable Products and Versions
This example applies to all models and versions except the CE12800E (configured with ED-E, EG-E, or EGA-E series cards), CE6880EI, and CE5880EI.
Networking Requirements
As shown in Figure 2-43, traffic between department 1 and department 2 is exchanged through SwitchA. Maintenance personnel need to view traffic on 10GE2/0/1 and devices to detect abnormal traffic.
Configuration Roadmap
Configure sFlow on SwitchA and set the sampling mode on 10GE2/0/1 so that SwitchA can forward sampled traffic from 10GE2/0/1 to the sFlow collector. The collector then shows the network traffic status based on the received sFlow packets.
The configuration roadmap is as follows:
- Configure an IP address for SwitchA.
- Configure sFlow agent and collector information.
- Set the sFlow sampling mode.
Procedure
- Configure an IP address for SwitchA and specify a routing protocol.
<HUAWEI> system-view [~HUAWEI] sysname SwitchA [*HUAWEI] commit [~SwitchA] vlan 100 [*SwitchA-vlan100] quit [*SwitchA] interface vlanif 100 [*SwitchA-Vlanif100] ip address 10.1.1.1 24 [*SwitchA-Vlanif100] quit [*SwitchA] interface 10ge 1/0/1 [*SwitchA-10GE1/0/1] port link-type trunk [*SwitchA-10GE1/0/1] port trunk pvid vlan 100 [*SwitchA-10GE1/0/1] port trunk allow-pass vlan 100 [*SwitchA-10GE1/0/1] quit
- Configure sFlow agent and collector information.
# Specify an IP address of the sFlow agent.
[*SwitchA] sflow agent ip 10.1.1.1# Configure sFlow collector information: ID 2, IP address 10.1.1.2, and description netserver.
[*SwitchA] sflow collector 2 ip 10.1.1.2 description netserver - Set the sFlow sampling mode.
# Configure flow sampling. Set the sFlow collector ID to 2 and sampling rate to 32768 to sample incoming and outgoing traffic.
[*SwitchA] interface 10ge 2/0/1 [*SwitchA-10GE2/0/1] sflow sampling collector 2 rate 32768 inbound outbound
# Configure counter sampling. Set the sFlow collector ID to 2 and sampling interval to 120.
[*SwitchA-10GE2/0/1] sflow counter collector 2 interval 120 [*SwitchA-10GE2/0/1] quit [*SwitchA] commit [~SwitchA] quit
Verifying the Configuration
After the configurations are complete, view the global sFlow information. The following uses CE12800 as an example.
<SwitchA> display sflow configuration sFlow Version 5 ------------------------------------------------------------------------------- Agent IP Address : 10.1.1.1 ------------------------------------------------------------------------------- Collector ID: 2 IP Address : 10.1.1.2 UDP Port : 6343 Length : 1400 Description : netserver Transmission : - ------------------------------------------------------------------------------- NOTE: CID:collectorID LEN:length DIR:direction RAT:rate INT:interval IN :inbound OUT:outbound HEAD-ONLY:IPv4/IPv6 head length ------------------------------------------------------------------------------- Sampling Counter ------------------------------------------------------------------------------- Interface CID LEN DIR RAT CID INT ------------------------------------------------------------------------------- 10GE2/0/1 2 128 IN&OUT 32768 2 120 -------------------------------------------------------------------------------
Configuration File
SwitchA configuration file
# sysname SwitchA # vlan batch 100 # sflow agent ip 10.1.1.1 # sflow collector 2 ip 10.1.1.2 description netserver # interface Vlanif100 ip address 10.1.1.1 255.255.255.0 # interface 10GE1/0/1 port link-type trunk port trunk pvid vlan 100 port trunk allow-pass vlan 100 # interface 10GE2/0/1 sflow sampling collector 2 sflow sampling rate 32768 sflow sampling inbound sflow sampling outbound sflow counter collector 2 sflow counter interval 120 # return
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