cisco Content Hub Configuring sFlow
Cov ntaub ntawv hais txog sFlow
sFlow tso cai rau koj los saib xyuas cov tsheb khiav hauv lub sijhawm hauv cov ntaub ntawv sib txuas uas muaj cov keyboards thiab routers. Nws siv cov sampling mechanism hauv sFlow Agent software ntawm cov keyboards thiab routers rau kev saib xyuas kev khiav tsheb thiab xa mus rau sample cov ntaub ntawv ntawm ingress thiab egress ports mus rau hauv nruab nrab cov ntaub ntawv sau, kuj hu ua sFlow Analyzer.
Yog xav paub ntxiv txog sFlow, saib RFC 3176.
sFlow tus neeg saib xyuas
Tus neeg saib xyuas sFlow, uas tau muab tso rau hauv Cisco NX-OS software, ib ntus samples los yog polls lub interface counters uas cuam tshuam nrog cov ntaub ntawv los ntawm sampcoj pob khoom. Cov ntaub ntawv tuaj yeem yog Ethernet interface, Ether Channel interface, lossis ntau yam ntawm Ethernet interfaces. Tus neeg saib xyuas sFlow nug tus thawj tswj hwm chaw nres nkoj Ethernet rau cov ntaub ntawv sib koom ua tswv cuab ntawm Ether Channel thiab tseem tau txais cov ntawv ceeb toom los ntawm Ethernet chaw nres nkoj tus thawj coj rau kev hloov pauv tswv cuab.
Thaum koj qhib sFlow sampnyob rau hauv Cisco NX-OS software, raws li sampling tus nqi thiab cov khoom siv sab hauv random tus lej, cov pob ntawv ingress thiab cov pob ntawv egress raug xa mus rau CPU raws li sFlow-sampcoj pob ntawv. Tus neeg saib xyuas sFlow ua cov txheej txheem sampcoj packets thiab xa ib sFlow datagram mus rau sFlow Analyzer. Ntxiv rau qhov qub sampled packet, ib sFlow datagram suav nrog cov ntaub ntawv hais txog qhov chaw nres nkoj ingress, egress chaw nres nkoj, thiab qhov ntev pob ntawv qub. Ib sFlowtagram tuaj yeem muaj ntau yam sFlow samples.
Yam yuavtsum tau kawm uantej
Koj yuav tsum ua kom lub sFlow feature siv lub feature sflow hais kom ua configure sFlow.
Cov lus qhia thiab kev txwv rau sFlow
sFlow configuration cov lus qhia thiab cov kev txwv yog raws li nram no:
- Thaum koj qhib sFlow rau ib qho interface, nws tau qhib rau ob qho tib si ingress thiab egress. Koj tsis tuaj yeem qhib sFlow rau tsuas yog ingress lossis tsuas yog egress.
- sFlow egress sampling rau multicast, tshaj tawm, lossis tsis paub cov pob ntawv unicast tsis txaus siab.
- Koj yuav tsum configure sampling tus nqi raws li sFlow configuration thiab tsheb khiav hauv qhov system.
- Cisco Nexus 3000 Series txhawb tsuas yog ib qho sFlow sau.
Default Settings rau sFlow
Table 1: Default sFlow Parameters
| Tsis muaj | Default |
| sFlow sampling-rate | 4096 |
| sFlow sampling-loj | 128 |
| sFlow max uatagram-size | 1400 |
| sFlow collector-chaw nres nkoj | 6343 |
| sFlow counter-poll-interval | 20 |
Configuring sFLow
Enabling sFlow Feature
Koj yuav tsum ua kom lub sFlow feature ua ntej koj tuaj yeem teeb tsa sFlow ntawm qhov hloov.
Txheej txheem
| Hais kom ua los yog ua | Lub hom phiaj | |
| Kauj ruam 1 | hloov# configure lub davhlau ya nyob twg | Nkag mus rau hom kev teeb tsa thoob ntiaj teb. |
| Kauj ruam 2 | [tsis muaj] feature sflow | Ua kom lub sFlow feature. |
| Kauj ruam 3 | (yeem) yeeb yam feature | Qhia tau qhov ua tau zoo thiab xiam oob qhab. |
| Hais kom ua los yog ua | Lub hom phiaj | |
| Kauj ruam 4 | (Optional) hloov (config)# luam-running-config startup-config | Txuag qhov kev hloov tsis tu ncua los ntawm reboots thiab rov pib dua los ntawm kev luam qhov kev khiav
configuration rau startup configuration. |
Example
Cov nram qab no example qhia yuav ua li cas pab kom sFlow feature:
- hloov # configure terminal
- hloov (config) # feature sflow
- switch(config)# theej run-config startup-config
Configuring SampLing Tus Nqi
Ua ntej koj pib
Xyuas kom tseeb tias koj tau qhib lub sFlow feature.
Txheej txheem
| Hais kom ua los yog ua | Lub hom phiaj | |
| Kauj ruam 1 | hloov# configure lub davhlau ya nyob twg | Nkag mus rau hom kev teeb tsa thoob ntiaj teb. |
| Kauj ruam 2 | [tsis muaj] ploj sampling-rate sampling-rate | Configures sFlow sampling nqi rau pob ntawv. Cov sampling-rate tuaj yeem ua tus lej ntawm 4096-1000000000. Tus nqi pib yog 4096. |
| Kauj ruam 3 | (yeem) qhia sflow | Qhia sFlow cov ntaub ntawv. |
| Kauj ruam 4 | (Optional) hloov (config)# luam-running-config startup-config | Txuag qhov kev hloov tsis tu ncua los ntawm reboots thiab rov pib dua los ntawm kev theej cov kev teeb tsa khiav mus rau qhov pib teeb tsa. |
Example
Qhov no example qhia yuav ua li cas teem lub sampLing tus nqi rau 50,000:
- hloov # configure terminal
- hloov (config) # sflow sampling-rate 50000
- switch(config)# theej run-config startup-config
Configuring qhov Maximum Sampcoj Size
Koj tuaj yeem teeb tsa qhov siab tshaj plaws ntawm cov bytes uas yuav tsum tau theej los ntawm liampcoj pob ntawv.
Ua ntej koj pib
Xyuas kom tseeb tias koj tau qhib lub sFlow feature.
Txheej txheem
| Hais kom ua los yog ua | Lub hom phiaj | |
| Kauj ruam 1 | hloov# configure lub davhlau ya nyob twg | Nkag mus rau hom kev teeb tsa thoob ntiaj teb. |
| Kauj ruam 2 | [tsis muaj] swb max-sampcoj-size sampling-loj | Configures sFlow siab tshaj sampling size packets. Qhov ntau rau cov sampling-loj yog los ntawm 64 mus rau 256 bytes. Tus nqi pib yog 128. |
| Kauj ruam 3 | (yeem) qhia sflow | Qhia sFlow cov ntaub ntawv. |
| Kauj ruam 4 | (Optional) hloov (config)# luam-running-config startup-config | Txuag qhov kev hloov tsis tu ncua los ntawm reboots thiab rov pib dua los ntawm kev luam qhov kev khiav
configuration rau startup configuration. |
Example
Qhov no example qhia yuav ua li cas rau configure lub siab tshaj plaws sampQhov loj me rau sFlow Agent:
- hloov # configure terminal
- hloov (config) # sflow max-sampcoj-size 200
- switch(config)# theej run-config startup-config
Configuring Counter Poll Interval
Koj tuaj yeem teeb tsa qhov siab tshaj plaws ntawm cov vib nas this ntawm kev ua tiav samples ntawm cov txee uas cuam tshuam nrog cov ntaub ntawv qhov chaw. A sampling ncua sij hawm ntawm 0 disables counter sampling.
Ua ntej koj pib
Xyuas kom tseeb tias koj tau qhib lub sFlow feature.
Txheej txheem
| Hais kom ua los yog ua | Lub hom phiaj | |
| Kauj ruam 1 | hloov# configure lub davhlau ya nyob twg | Nkag mus rau hom kev teeb tsa thoob ntiaj teb. |
| Kauj ruam 2 | [tsis muaj] sflow counter-poll-interval poll-interval | Configures sFlow lub sij hawm pov npav rau ib qho interface. Qhov ntau rau cov poll-interval yog los ntawm 0 mus rau 2147483647 vib nas this. Tus nqi pib yog 20. |
| Kauj ruam 3 | (yeem) qhia sflow | Qhia sFlow cov ntaub ntawv. |
| Hais kom ua los yog ua | Lub hom phiaj | |
| Kauj ruam 4 | (Optional) hloov (config)# luam-running-config startup-config | Txuag qhov kev hloov tsis tu ncua los ntawm reboots thiab rov pib dua los ntawm kev luam qhov kev khiav
configuration rau startup configuration. |
Example
Qhov no example qhia yuav ua li cas rau configure sFlow poll luv rau ib qho interface:
- hloov # configure terminal
- switch(config)# sflow counter-poll-interval 100
- switch(config)# theej run-config startup-config
Configuring qhov siab tshaj Datagram Size
Koj tuaj yeem teeb tsa qhov siab tshaj plaws ntawm cov ntaub ntawv bytes uas tuaj yeem xa hauv ib zaugample datagRAM.
Ua ntej koj pib
Xyuas kom tseeb tias koj tau qhib lub sFlow feature.
Txheej txheem
| Hais kom ua los yog ua | Lub hom phiaj | |
| Kauj ruam 1 | hloov# configure lub davhlau ya nyob twg | Nkag mus rau hom kev teeb tsa thoob ntiaj teb. |
| Kauj ruam 2 | [tsis muaj] swb max-datagram-size datagram-size | Configures sFlow siab tshaj plaws datagram loj.
Qhov ntau rau cov datagram-size yog los ntawm 200 mus rau 9000 bytes. Tus nqi pib yog 1400. |
| Kauj ruam 3 | (yeem) qhia sflow | Qhia sFlow cov ntaub ntawv. |
| Kauj ruam 4 | (Optional) hloov (config)# luam-running-config startup-config | Txuag qhov kev hloov tsis tu ncua los ntawm reboots thiab rov pib dua los ntawm kev luam qhov kev khiav
configuration rau startup configuration. |
Example
Qhov no example qhia yuav ua li cas rau configure sFlow siab tshaj datagram loj:
- hloov # configure terminal
- hloov (config) # sflow max-datagram-size 2000
- switch(config)# theej run-config startup-config
[##############################################
Configuring sFlow Analyzer Chaw Nyob
Ua ntej koj pib
Xyuas kom tseeb tias koj tau qhib lub sFlow feature.
Txheej txheem
| Hais kom ua los yog ua | Lub hom phiaj | |
| Kauj ruam 1 | hloov# configure lub davhlau ya nyob twg | Nkag mus rau hom kev teeb tsa thoob ntiaj teb. |
| Kauj ruam 2 | [tsis muaj] ntws collector-ip IP chaw nyob vrf ua | Configures IPv4 chaw nyob rau sFlow Analyzer. vrfin kev tuaj yeem yog ib qho ntawm cov hauv qab no:
|
| Kauj ruam 3 | (yeem) qhia sflow | Qhia sFlow cov ntaub ntawv. |
| Kauj ruam 4 | (Optional) hloov (config)# luam-running-config startup-config | Txuag qhov kev hloov tsis tu ncua los ntawm reboots thiab rov pib dua los ntawm kev theej cov kev teeb tsa khiav mus rau qhov pib teeb tsa. |
Example
Qhov no example qhia yuav ua li cas teeb tsa IPv4 chaw nyob ntawm sFlow cov ntaub ntawv khaws cia uas txuas nrog rau qhov chaw nres nkoj tswj:
- hloov # configure terminal
- hloov (config) # sflow collector-ip 192.0.2.5 vrf tswj
- switch(config)# theej run-config startup-config
Configuring sFlow Analyzer Chaw nres nkoj
Koj tuaj yeem teeb tsa qhov chaw nres nkoj qhov chaw rau sFlow datagrams.
Ua ntej koj pib
Xyuas kom tseeb tias koj tau qhib lub sFlow feature.
Txheej txheem
| Hais kom ua los yog ua | Lub hom phiaj | |
| Kauj ruam 1 | hloov# configure lub davhlau ya nyob twg | Nkag mus rau hom kev teeb tsa thoob ntiaj teb. |
| Kauj ruam 2 | [tsis muaj] sflow collector-chaw nres nkoj collector-port | Configures UDP chaw nres nkoj ntawm sFlow Analyzer. Qhov ntau rau cov collector-port yog los ntawm 0 txog 65535. Tus nqi pib yog 6343. |
| Kauj ruam 3 | (yeem) qhia sflow | Qhia sFlow cov ntaub ntawv. |
| Kauj ruam 4 | (Optional) hloov (config)# luam-running-config startup-config | Txuag qhov kev hloov tsis tu ncua los ntawm reboots thiab rov pib dua los ntawm kev theej cov kev teeb tsa khiav mus rau qhov pib teeb tsa. |
Example
Qhov no example qhia yuav ua li cas rau configure qhov chaw nres nkoj lo lus uas peb rau sFlow datagrams:
- hloov # configure terminal
- hloov (config) # sflow collector-port 7000
- switch(config)# theej run-config startup-config
[############################################## - hloov (config) #
Configuring sFlow Agent Chaw Nyob
Ua ntej koj pib
Xyuas kom tseeb tias koj tau qhib lub sFlow feature.
Txheej txheem
| Hais kom ua los yog ua | Lub hom phiaj | |
| Kauj ruam 1 | hloov# configure lub davhlau ya nyob twg | Nkag mus rau hom kev teeb tsa thoob ntiaj teb. |
| Kauj ruam 2 | [tsis muaj] sflow agent-ip ip-chaw nyob | Configures IPv4 chaw nyob ntawm sFlow Agent.
Lub neej ntawd ip-chaw nyob yog 0.0.0.0, uas txhais tau tias tag nrho sampling yog neeg xiam ntawm qhov hloov. Koj yuav tsum qhia qhov chaw nyob IP uas siv tau los pab kom sFlow functionality. |
| Kauj ruam 3 | (yeem) qhia sflow | Qhia sFlow cov ntaub ntawv. |
| Hais kom ua los yog ua | Lub hom phiaj | |
| Kauj ruam 4 | (Optional) hloov (config)# luam-running-config startup-config | Txuag qhov kev hloov tsis tu ncua los ntawm reboots thiab rov pib dua los ntawm kev theej cov kev teeb tsa khiav mus rau qhov pib teeb tsa. |
Example
Qhov no example qhia yuav ua li cas rau configure IPv4 chaw nyob ntawm sFlow Agent:
- hloov # configure terminal
- hloov (config) # sflow agent-ip 192.0.2.3
- switch(config)# theej run-config startup-config
Configuring sFlow Sampling Data Source
The sFlow sampling cov ntaub ntawv tuaj yeem yog qhov chaw nres nkoj Ethernet, ntau qhov chaw nres nkoj Ethernet, lossis chaw nres nkoj channel.
Ua ntej koj pib
- Xyuas kom tseeb tias koj tau qhib lub sFlow feature.
- Yog tias koj xav siv qhov chaw nres nkoj channel raws li cov ntaub ntawv qhov chaw, xyuas kom meej tias koj twb tau teeb tsa lub chaw nres nkoj channel thiab koj paub tus naj npawb chaw nres nkoj.
Txheej txheem
| Hais kom ua los yog ua | Lub hom phiaj | |
| Kauj ruam 1 | hloov# configure lub davhlau ya nyob twg | Nkag mus rau hom kev teeb tsa thoob ntiaj teb. |
| Kauj ruam 2 | hloov (config) # [tsis muaj] sflow data-source interface [ethernet qhov/chaw nres nkoj[-chaw nres nkoj] |chaw nres nkoj-channel channel-npe] | Configures sFlow sampling data source. Rau Ethernet cov ntaub ntawv qhov chaw, qhov yog tus lej xov tooj thiab chaw nres nkoj tuaj yeem yog ib tus lej chaw nres nkoj lossis ntau qhov chaw nres nkoj tau xaiv los ua chaw nres nkoj-chaw nres nkoj. |
| Kauj ruam 3 | (Optional) hloov (config)# qhia sflow | Qhia sFlow cov ntaub ntawv. |
| Kauj ruam 4 | (Optional) hloov (config)# luam-running-config startup-config | Txuag qhov kev hloov tsis tu ncua los ntawm reboots thiab rov pib dua los ntawm kev theej cov kev teeb tsa khiav mus rau qhov pib teeb tsa. |
Example
Qhov no example qhia yuav ua li cas rau configure Ethernet ports 5 txog 12 rau sFlow samplwm:
- hloov # configure terminal
- hloov (config) # sflow data-source interface ethernet 1/5-12
- switch(config)# theej run-config startup-config
[############################################## - hloov (config) #
Qhov no example qhia yuav ua li cas rau configure chaw nres nkoj channel 100 rau sFlow samplwm:
- hloov # configure terminal
- switch(config)# sflow data-source interface port-channel 100 switch(config)# copy run-config startup-config [####################### 100%
- hloov (config) #
Txheeb xyuas qhov sFlow Configuration
Siv cov lus txib hauv qab no los txheeb xyuas cov ntaub ntawv teeb tsa sFlow:
| txib | Lub hom phiaj |
| qhia sflow | Qhia txog sFlow kev teeb tsa thoob ntiaj teb. |
| qhia sflow txheeb cais | Qhia txog sFlow cov txheeb cais. |
| clear sflow txheeb cais | Clears sFlow cov txheeb cais. |
| qhia run-config sflow [tag nrho] | Qhia txog sFlow configuration uas khiav tam sim no. |
Configuration Examples rau sFlow
Qhov no example qhia yuav ua li cas rau configure sFlow:
- feature sflow
- ploj sampling-rate 5000
- swb max-sampcoj-size 200
- sflow counter-poll-interval 100
- swb max-datagram-size 2000
- sflow collector-ip 192.0.2.5 vrf tswj sflow collector-port 7000
- sflow tus neeg saib xyuas-ip 192.0.2.3
- sflow data-source interface ethernet 1/5
Cov ntaub ntawv ntxiv rau sFlow
Table 2: Cov ntaub ntawv ntsig txog sFlow
| Lwm Yam Hais Txog | Document Title |
| sFlow CLI cov lus txib | Cisco Nexus 3000 Series NX-OS Qhov system Kev tswj hwm Hais kom siv. |
| TIAB SA 3176 | Txhais cov sFlow pob ntawv hom thiab SNMP MIB. |
Feature History rau sFlow
Cov lus no suav nrog tsuas yog qhov hloov tshiab rau cov kev tshaj tawm uas tau ua rau ntxiv lossis hloov pauv rau qhov tshwj xeeb.
| Lub npe feature | Tso tawm | Cov ntaub ntawv tshwj xeeb |
| sFlow | 5.0(3)U4(1) | Qhov no feature tau qhia. |
Cov ntaub ntawv / Cov ntaub ntawv
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cisco Content Hub Configuring sFlow [ua pdf] Cov neeg siv phau ntawv qhia Content Hub Configuring sFlow, Configuring sFlow, Content Hub, sFlow |
