H3C Routers
IPv4 NetStream Sampling
Configuration Examples

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Contents

Introduction· 1

Prerequisites· 1

Example: Configuring IPv4 NetStream sampling· 1

Network configuration· 1

Software versions used· 2

Procedures· 2

Verifying the configuration· 2

Configuration files· 4

Related documentation· 4

 

Introduction

The following information provides examples for configuring IPv4 NetStream sampling on routers.

Prerequisites

This document applies to Comware 9-based routers. Procedures and information in the examples might be slightly different depending on the software or hardware version of the router.

The configuration examples in this document were created and verified in a lab environment, and all the devices were started with the factory default configuration. When you are working on a live network, make sure you understand the potential impact of every command on your network.

This document assumes that you have basic knowledge of samplers and IPv4 NetStream.

Example: Configuring IPv4 NetStream sampling

Network configuration

As shown in Figure 1, the router acts as the gateway to provide external network access. Configure the following settings to collect traffic statistics in the outbound direction on GigabitEthernet 0/0/2 and in the inbound direction on GigabitEthernet 0/0/3 on the router and export the collected data to the NetStream server:

·     Configure random sampling in the outbound direction to select one packet randomly from 200 packets on GigabitEthernet 0/0/2.

·     Configure fixed sampling in the inbound direction to select the first packet from 100 packets on GigabitEthernet 0/0/3.

Figure 1 Network diagram

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Software versions used

This configuration example was created and verified on R9141P16 of the MSR2630E-X1 device.

Procedures

# Create sampler samplerin in fixed mode and set the rate to 100. The first packet of 100 packets is selected.

<Device> system-view

[Device] sampler samplerin mode fixed packet-interval 100

# Create sampler samplerout in random mode and set the rate to 200. One packet from 200 packets is selected.

[Device] sampler samplerout mode random packet-interval 200

# Enable IPv4 NetStream to use sampler samplerin to collect statistics for the inbound traffic on GigabitEthernet 0/0/3.

[Device] interface gigabitethernet 0/0/3

[Device-GigabitEthernet0/0/3] ip address 10.0.0.1 24

[Device-GigabitEthernet0/0/3] ip netstream inbound

[Device-GigabitEthernet0/0/3] ip netstream sampler samplerin inbound

[Device-GigabitEthernet0/0/3] quit

#Enable IPv4 NetStream to use sampler samplerout to collect statistics for the outbound traffic on GigabitEthernet 0/0/2.

[Device] interface gigabitethernet 0/0/2

[Device-GigabitEthernet0/0/2] ip address 192.168.0.1 24

[Device-GigabitEthernet0/0/2] ip netstream outbound

[Device-GigabitEthernet0/0/2] ip netstream sampler samplerout outbound

[Device-GigabitEthernet0/0/2] quit

# Specify an IP address for GigabitEthernet 0/0/1.

[Device] interface gigabitethernet 0/0/1

[Device-GigabitEthernet0/0/1] ip address 192.168.1.1 24

[Device-GigabitEthernet0/0/1] quit

# Specify destination address 192.168.1.2 and UDP port 5000 for NetStream data export.

[Device] ip netstream export host 192.168.1.2 5000

Verifying the configuration

# Execute the display sampler command to display configuration information for sampler samplerin and sampler samplerout.

[Device] display sampler

 Sampler name: samplerout

  Mode: random;  Packet-interval: 200

 Sampler name: samplerin

  Mode: fixed;  Packet-interval: 100

# After the router operates for a period of time, use the display ip netstream cache command to view NetStream flow cache configuration and status.

[Device] display ip netstream cache

IP NetStream cache information:

  Active flow timeout               : 30 min

  Inactive flow timeout             : 30 sec

  Max number of entries             : 10000

  IP active flow entries            : 1

  MPLS active flow entries          : 0

  L2 active flow entries            : 0

  IPL2 active flow entries          : 0

  IP flow entries counted           : 7

  MPLS flow entries counted         : 0

  L2 flow entries counted           : 0

  IPL2 flow entries counted         : 0

  Last statistics resetting time    : Never

 

IP packet size distribution (157 packets in total):

 

 1-32   64   96  128  160  192  224  256  288  320  352  384  416  448  480

 .000 .929 .031 .006 .000 .006 .000 .000 .000 .000 .025 .000 .000 .000 .000

 

  512  544  576 1024 1536 2048 2560 3072 3584 4096 4608 >4608

 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000

 

 Protocol          Total  Packets    Flows  Packets Active(sec) Idle(sec)

                   Flows  /sec       /sec   /flow   /flow       /flow

---------------------------------------------------------------------------

 TCP-other             3        0        0       26           7        30

 ICMP                  1        0        0        1           0        30

 UDP-BOOTP             1        0        0        4          15        30

 TCP-Telnet            2        0        0       35          24        30

 

Type DstIP(Port)            SrcIP(Port)            Pro ToS If(Direct)  Pkts

     DstMAC(VLAN)           SrcMAC(VLAN)

     TopLblType(IP/MASK)    Lbl-Exp-S-List

---------------------------------------------------------------------------

IP   192.168.0.1(23)       192.168.0.2(56839)      6   0   GE0/0/2(I)    1

# Execute the display ip netstream export command to view information about the NetStream data export.

[Device] display ip netstream export

IP export information:

  Flow source interface                           : Not specified

  Flow destination VPN instance                   : Not specified

  Flow destination IP address (UDP)               : 192.168.1.2 (5000)

  Version 5 exported flows number                 : 0

  Version 5 exported UDP datagrams number (failed): 0 (0)

  Version 9 exported flows number                 : 8

  Version 9 exported UDP datagrams number (failed): 6 (6)

Configuration files

#

 sampler samplerout mode random packet-interval 200

 sampler samplerin mode fixed packet-interval 100

#

 ip netstream export host 192.168.1.2 5000

#

interface GigabitEthernet0/0/1

 port link-mode route

 ip address 192.168.1.1 255.255.255.0

#

interface GigabitEthernet0/0/2

 port link-mode route

 ip address 192.168.0.1 255.255.255.0

 ip netstream outbound

 ip netstream sampler samplerout outbound

#

interface GigabitEthernet0/0/3

 port link-mode route

 ip address 10.0.0.1 255.255.255.0

 ip netstream inbound

 ip netstream sampler samplerin inbound

#

Related documentation

·     Network Management and Monitoring Configuration Guide in H3C MSR1000[2600][3600] Routers Configuration Guides(V9)

·     Network Management and Monitoring Command Reference in H3C MSR1000[2600][3600] Routers Command References(V9)