Cisco Systems uBR7200 manual Configuring QoS Profiles, Verifying Cable Modulation Profiles, MC-582

Page 64

Configuring Headend Broadband Access Router Features

Configuring Cable Profiles

Verifying Cable Modulation Profiles

To verify whether or not a cable modulation profile has been created and to see how it is configured,

enter the show cable modulation-profile command:

CMTS01# show cable modulation-profile

 

 

 

 

 

 

 

Mo

IUC

Type

Preamb

Diff

FEC err FEC

Scrambl

Max

Guard

Last

Scrambl

Preamb

 

 

 

length

enco

correct

T

seed

B

time

CW

 

offset

 

 

 

 

 

 

 

bytes

 

size size

short

 

1

request qpsk

64

no

0x0

0x10

0x152

1

8

no

yes

56

1

initial qpsk

128

no

0x5

0x22

0x152

0

48

no

yes

0

1

station

qpsk

128

no

0x5

0x22

0x152

0

48

no

yes

0

1

short

qpsk

72

no

0x5

0x4B

0x152

0

8

no

yes

48

Troubleshooting Tips

To troubleshoot the configuration, perform the following tasks:

Make sure you are in global configuration mode.

Make sure you typed the correct modulation profile number and profile elements when you used the command.

Return to the default settings.

Configuring QoS Profiles

The Cisco uBR7200 series router supports multiple QoS profiles. QoS profile 1 is used during cable modem registration; QoS profile 2 is the default QoS profile. Both of these profiles are preconfigured and cannot be removed. However, you can modify these profiles and create additional QoS profiles for various traffic flows.

To create or change a QoS profile, use the first command in the following table, plus as many of the additional commands as are necessary to make the changes you require. All of the QoS profile commands are global configuration commands.

 

Command

Purpose

Step 1

 

 

CMTS01(config)# cable qos-profile groupnum

Creates a new QoS profile with a profile number of

 

 

groupnum , or modifies an existing profile.

Step 2

 

 

CMTS01(config)# cable qos-profile groupnum

Sets the bits in the ToS byte that enable you to

 

ip-precedence bits

configure individual data rate limits on a per-modem

 

 

basis. Valid values are from 0 to 7.

Step 3

 

 

CMTS01(config)# cable qos-profile groupnum

Sets the guaranteed minimum upstream rate in kbps.

 

guaranteed-upstream rate

Valid values are from 0 to 100000 kbps. Default = 0

 

 

(no reserved rate).

Step 4

 

 

CMTS01(config)# cable qos-profile groupnum max-burst

Sets the maximum upstream transmit burst size in

 

size

bytes that the cable modem can send for any single

 

 

transmit burst. Valid values are from 0 to 4080 bytes.

 

 

Default = 0 (variable). Recommended max burst size

 

 

= 1600.

 

 

 

Cisco IOS Multiservice Applications Configuration Guide

MC-582

Image 64
Contents Configuring Headend Broadband Access Router Features MC-519Headend Overview MC-520Topology of a Typical Broadband Network Voice over IP Services Telco Return MC-523MC-524 TODQoS Features Service Class ProfilesMultiple Service IDs MC-525QoS Profile Enforcement TAG/NetFlow SwitchingMC-526 Netflow Switching Tag SwitchingMC-527 Security Features Weighted Random Early DetectionWeighted Fair Queueing Committed Access Rate CARCable Modem and Multicast Authentication Using Radius Docsis Baseline PrivacyUpstream Address Verification MC-529Traffic Shaping Features Operations and Provisioning FeaturesDynamic Ranging MC-530Downstream Channel ID Configuration Burst Profile ConfigurationDownstream Frequency Override CPE LimitationSpectrum Management Headend Broadband Access Router Configuration Prerequisites MC-533Headend Broadband Access Router Configuration Tasks MC-534Configuring the Downstream Cable Interface CMTS01# configure terminalCMTS01config# interface cable 6/0 Activating the Downstream CarrierSetting the Downstream Center Frequency Troubleshooting TipsVerifying the Downstream Carrier MC-536Verifying the Downstream Center Frequency CMTS01config-if#cable downstream frequencyMC-537 Setting the Downstream Channel ID Setting the Downstream Mpeg Framing Format Annex BVerifying the Downstream Channel ID MC-538Setting the Downstream Modulation Verifying the Downstream Mpeg Framing FormatVerifying the Downstream Modulation MC-539Setting the Downstream Interleave Depth CMTS01config-if#cable downstream interleave-depthVerifying the Downstream Interleave Depth MC-540Verifying the Downstream Helper Address Setting the Downstream Helper AddressMC-541 Setting Downstream Rate Limiting MC-542Verifying Downstream Rate Limiting Configuring the Upstream Cable InterfaceMC-543 Setting the Upstream Frequency MC-544MC-545 Verifying the Upstream FrequencyCMTS01# show controllers cable 6/0 u0 Setting the Upstream Channel Width Verifying Upstream Channel WidthMC-546 Channel-width widthSetting the Upstream Input Power Level MC-547Verifying the Upstream Input Power Level Activating Upstream Admission ControlVerifying Upstream Admission Control MC-548Activating Upstream FEC MC-549Router# more systemrunning-config Specifying Upstream Minislot SizeVerifying Upstream FEC MC-550Verifying Upstream Minislot Size Activating the Upstream ScramblerMC-551 CMTS01config-if#cable upstream usport scrambler CMTS01# more systemrunning-configVerifying the Upstream Scrambler MC-552Activating Upstream Differential Encoding Activating Upstream Rate LimitingVerifying Upstream Differential Encoding MC-553Verifying Upstream Rate Limiting CMTS01config-if#no cable upstream usport rate-limitMC-554 Frequency-adjust averaging percentage Activating Upstream Frequency AdjustmentMC-555 Verifying Upstream Frequency Adjustment Activating Upstream Power AdjustmentMC-556 Activating Upstream Timing Adjustment Verifying Upstream Power AdjustmentMC-557 Continue secondsActivating the Upstream Ports Verifying Upstream Timing AdjustmentMC-558 Verifying the Upstream Ports Setting Upstream Backoff ValuesMC-559 CMTS01config-if#cable upstream usport range MC-560Data-backoff start end Data-backoff automaticVerifying Upstream Data Backoff Automatic Configuring and Activating Baseline PrivacyMC-561 CMTS01config-if#cable privacy kek grace-time Configuring KEK PrivacyMC-562 Configuring TEK Privacy Verifying KEK PrivacyVerifying TEK Privacy MC-563Configuring and Activating Frequency Agility Activating Baseline PrivacyVerifying Baseline Privacy MC-564Combiner Groups MC-565Frequency Management Policy MC-566Determining the Upstream Ports Assigned to a Combiner Group MC-567Configuring and Activating Spectrum Groups Creating Spectrum GroupsVerifying Spectrum Groups MC-568Command Purpose MC-569MC-570 Verifying Frequency Hopping Verifying Spectrum Group ConfigurationMC-571 Configuring Spectrum Group Characteristics MC-572Verifying Spectrum Group Characteristics CMTS01config# cable spectrum-group groupnum hopMC-573 Threshold percentActivating IP Address Resolution Protocol Assigning the Spectrum Group and the Upstream PortsActivating Cable ARP Requests Verifying Spectrum Group and Upstream Port AssignmentsVerifying ARP Requests Activating Host-to-Host Communication Proxy ARPMC-575 Configuring Dhcp Options Activating Cable Proxy ARP RequestsActivating Cable Relay Agent Verifying Cable Proxy ARP RequestsVerifying Dhcp giaddr Activation Activating Dhcp giaddrMC-577 Setting Service Options Setting Optional IP ParametersConfiguring ToD Service Verifying ToD ServiceActivating IP Multicast Echo Activating IP Broadcast EchoVerifying IP Multicast Echo MC-579Configuring Cable Profiles Configuring Cable Modulation ProfilesVerifying IP Broadcast Echo MC-580Number profile MC-581Verifying Cable Modulation Profiles Configuring QoS ProfilesMC-582 Verifying QoS Profiles MC-583Setting QoS Permission Enforcing a QoS Profile AssignmentVerifying QoS Permission MC-584Verifying a QoS Profile Assignment Managing Cable Modems on the HFC NetworkMC-585 Configuring Sync Message Interval Configuring Telco ReturnActivating Cable Modem Authentication Verifying Sync Message IntervalActivating Cable Modem Upstream Address Verification Verifying Cable Modem AuthenticationMC-587 CMTS01config-if#cable source-verify dhcp Activating Cable Modem Insertion IntervalVerifying Cable Modem Upstream Address Verification MC-588Verifying Cable Modem Insertion Interval CMTS01config-if#cable insertion-interval automaticMC-589 Verifying the Maximum Number of Hosts Configuring Cable Modem Registration TimeoutMC-590 Verifying Registration Timeout Clearing and Resetting Cable ModemsMC-591 Clearing Cable Modem Counters Verifying Cable Modem Clearing and ResettingMC-592 Using Ping Docsis Verifying that Cable Modem Counters are ClearedVerifying Ping Docsis MC-593Spectrum Management Configuration Example MC-594Virtual Private Network Configuration Example MC-595MC-596 Ip http server Ip http authentication local No cdp run MC-597VoIP Configuration Example MC-598MC-599 Ip subnet-zero No ip domain-lookupTelco Return Configuration Example MC-600Cable telco-return enable MC-601QoS Profile Enforcement Configuration Example Cable Modem all resetMC-602 Cable RegTroubleshooting Using Cable Flap Lists Setting Cable Flap List AgingCMTS01config# cable flap-list aging days MC-603Setting Cable Flap List Insertion Time Setting Cable Flap List Power Adjustment ThresholdVerifying Cable Flap List Aging Verifying Cable Flap List Insertion TimeSetting Cable Flap List Miss Threshold Verifying Cable Flap List Power Adjustment ThresholdCMTS01config# cable flap-list miss-threshold misses Verifying Cable Flap List Miss ThresholdSetting Cable Flap List Size Clearing Cable Flap ListVerifying Cable Flap List Size MC-606
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