Cisco uBR900 Series Especificaciones

Configuring the Cisco uBR900 Series Cable Access Routers 1Configuring the Cisco uBR900 SeriesCable Access RoutersThis document addresses the followin

Feature Overview10Cisco IOS Release 12.0(7)TPort Address Translation (PAT) is a similar mechanism that enables all internal hosts to share a singlereg

show controllers cable-modem mac100Cisco IOS Release 12.0(7)TDS Frequency Downstream frequency acquired by the Cisco uBR900 series during its lastinit

show controllers cable-modem mac Configuring the Cisco uBR900 Series Cable Access Routers 101 Scrambler Seed 15-bit seed value loaded at the beginni

show controllers cable-modem mac102Cisco IOS Release 12.0(7)TRelated CommandsRanging Backoff Start Initial back-off window for initial ranging content

show controllers cable-modem phy Configuring the Cisco uBR900 Series Cable Access Routers 103show controllers cable-modem phyTo display the contents o

show controllers cable-modem phy104Cisco IOS Release 12.0(7)Tldsft=B0EE ldsnre=0098AF ldif=0D004E ldbbi=00000000ldbbq=00000000 ldali=032E00

show controllers cable-modem phy Configuring the Cisco uBR900 Series Cable Access Routers 105Related CommandsCommand Descriptionshow controllers cable

show controllers cable-modem tuner106Cisco IOS Release 12.0(7)Tshow controllers cable-modem tunerTo display the settings for the upstream and downstre

show controllers cable-modem tuner Configuring the Cisco uBR900 Series Cable Access Routers 107Table 13 show controllers cable-modem tuner Field Descr

show dhcp108Cisco IOS Release 12.0(7)Tshow dhcpTo display the current DHCP settings on point-to-point interfaces, enter the show dhcp commandfrom priv

show dhcp Configuring the Cisco uBR900 Series Cable Access Routers 109Following is sample output for the show dhcp server command:uBR924# show dhcp s

Voice Over IP Operations Configuring the Cisco uBR900 Series Cable Access Routers 11Figure 4 Simplified VoIP Over Cable NetworkYour company can then de

show dhcp110Cisco IOS Release 12.0(7)TRelated CommandsAcks Number of ‘acknowledge’ messages sent by the server to the proxy-client.Naks Number of ‘not

show interfaces cable-modem Configuring the Cisco uBR900 Series Cable Access Routers 111show interfaces cable-modemTo display information about the Ci

show interfaces cable-modem112Cisco IOS Release 12.0(7)TExamplesTraffic passing through the cable access router interface is shown in the following exa

show interfaces cable-modem Configuring the Cisco uBR900 Series Cable Access Routers 113Last input/output Number of hours, minutes, and seconds since

show interfaces cable-modem114Cisco IOS Release 12.0(7)TCRC Number of cyclic redundancy checksums generated by the originating LANstation or far-end d

show interfaces cable-modem Configuring the Cisco uBR900 Series Cable Access Routers 115To display the number of packets and bytes of each protocol ty

show interfaces cable-modem116Cisco IOS Release 12.0(7)TInformation about routing and bridging protocols and filtering on the cable access router inter

show interfaces cable-modem Configuring the Cisco uBR900 Series Cable Access Routers 117Related CommandsAct Action to betakenwhenthis address is looke

Debug Commands118Cisco IOS Release 12.0(7)TDebug CommandsNote Troubleshooting the Cisco uBR900 series cable access router is typically accomplished us

debug cable-modem bpkm Configuring the Cisco uBR900 Series Cable Access Routers 119debug cable-modem bpkmTo debug baseline privacy information on a Ci

Feature Overview12Cisco IOS Release 12.0(7)T• In general, fax/modem cards are not supported over VoIP links.Contact your network management, provision

debug cable-modem bpkm120Cisco IOS Release 12.0(7)TRelated CommandsCommand Descriptiondebug cable-modem bridge Debugs bridge filter processing informat

debug cable-modem bridge Configuring the Cisco uBR900 Series Cable Access Routers 121debug cable-modem bridgeUse the debug cable-modem bridge command

debug cable-modem bridge122Cisco IOS Release 12.0(7)TRelated CommandsCommand Descriptiondebug cable-modem bpkm Debugs baseline privacy information on

debug cable-modem error Configuring the Cisco uBR900 Series Cable Access Routers 123debug cable-modem errorUse the the debug cable-modem error command

debug cable-modem error124Cisco IOS Release 12.0(7)TRelated CommandsCommand Descriptiondebug cable-modem bpkm Debugs baseline privacy information on a

debug cable-modem interrupts Configuring the Cisco uBR900 Series Cable Access Routers 125debug cable-modem interruptsTo debug Cisco uBR900 series inte

debug cable-modem interrupts126Cisco IOS Release 12.0(7)TRelated CommandsCommand Descriptiondebug cable-modem bpkm Debugs baseline privacy information

debug cable-modem mac Configuring the Cisco uBR900 Series Cable Access Routers 127debug cable-modem macTo troubleshoot the Cisco uBR900 series MAC lay

debug cable-modem mac128Cisco IOS Release 12.0(7)TExamplesExample 1This example shows sample display output from the debug cable-modem mac log command

debug cable-modem mac Configuring the Cisco uBR900 Series Cable Access Routers 1290 events dropped due to lack of a chunkThe line “0 events dropped du

Voice Over IP Operations Configuring the Cisco uBR900 Series Cable Access Routers 13The Cisco uBR924 cable access router supports the following servic

debug cable-modem mac130Cisco IOS Release 12.0(7)TIn addition, transmitted REG-REQs are displayed in hex dump format. The output from thiscommand is v

debug cable-modem mac Configuring the Cisco uBR900 Series Cable Access Routers 131*Mar 7 01:44:06: Preamble Value Offset - 0*Mar 7 01:44:06:

debug cable-modem mac132Cisco IOS Release 12.0(7)TRelated CommandsCommand Descriptiondebug cable-modem bpkm Debugs baseline privacy information on a C

debug cable-modem map Configuring the Cisco uBR900 Series Cable Access Routers 133debug cable-modem mapTo display the timing from MAP messages to sync

debug cable-modem map134Cisco IOS Release 12.0(7)TRelated CommandsCommand Descriptiondebug cable-modem bpkm Debugs baseline privacy information on a C

Glossary Configuring the Cisco uBR900 Series Cable Access Routers 135Glossarybroadband—Transmission system that combines multiple independent signals

Glossary136Cisco IOS Release 12.0(7)Theadend—Central distribution point for a CATV system. Video signals are received here fromsatellite (either co-lo

Glossary Configuring the Cisco uBR900 Series Cable Access Routers 137spectrum reuse—CATV’s most fundamental concept. Historically, the over-the-air sp

Glossary138Cisco IOS Release 12.0(7)T

Feature Overview14Cisco IOS Release 12.0(7)TNote To support voice configurations involving Cisco gatekeeper products using RAS, the headendmust have IP

Voice Over IP Operations Configuring the Cisco uBR900 Series Cable Access Routers 15Backup POTS ConnectionThe Cisco uBR924 cable access router provide

Feature Overview16Cisco IOS Release 12.0(7)TNote The backup POTS connection enables only one of the VoIP ports on the Cisco uBR924 tofunction during a

Security Features Configuring the Cisco uBR900 Series Cable Access Routers 17FirewallCisco uBR900 series cable access routers act as buffers between a

Feature Overview18Cisco IOS Release 12.0(7)TConfiguration OptionsThe Cisco uBR900 series cable access router typically ships from the factory ready to

Configuration Options Configuring the Cisco uBR900 Series Cable Access Routers 19The following sections describe the initial power-on and provisioning

Feature Overview2Cisco IOS Release 12.0(7)TCisco IOS Software Feature SetsThis section briefly describes the common feature sets supported by the Cisco

Feature Overview20Cisco IOS Release 12.0(7)T4 Establish IP connectivity. After the next MAP message broadcast, the router uses ashared require timeslo

Configuration Options Configuring the Cisco uBR900 Series Cable Access Routers 21At this point the router is online and operational in the basic DOCSI

Feature Overview22Cisco IOS Release 12.0(7)TThe sequence numbers shown in Table 3 are also shown in Figure 5 below. The Cisco uBR900 seriescable acces

Basic Troubleshooting Configuring the Cisco uBR900 Series Cable Access Routers 23Figure 6 illustrates the traffic flow during the initialization process

Feature Overview24Cisco IOS Release 12.0(7)TThe following is the normal progression of states as the Cisco uBR900 series registers with theCMTS:wait_f

Basic Troubleshooting Configuring the Cisco uBR900 Series Cable Access Routers 25508148.580 CMAC_LOG_RNG_REQ_QUEUED 2508155.820 CM

Feature Overview26Cisco IOS Release 12.0(7)TIn the following paragraphs, a sample log file is broken down into the chronological sequence ofevents list

Basic Troubleshooting Configuring the Cisco uBR900 Series Cable Access Routers 27The downstream frequency search table is arranged so that the first fr

Feature Overview28Cisco IOS Release 12.0(7)T508148.568 CMAC_LOG_RNG_RSP_SID_ASSIGNED 2508148.570 CMAC_LOG_ADJUST_RANGING_OFFSET

Basic Troubleshooting Configuring the Cisco uBR900 Series Cable Access Routers 29Note “Full security” was a request made by cable service providers fo

Cisco IOS Software Feature Sets Configuring the Cisco uBR900 Series Cable Access Routers 3Base IP BridgingBase IP Bridging includes full and DOCSIS-co

Benefits30Cisco IOS Release 12.0(7)T851.088 CMAC_LOG_STATE_CHANGE establish_privacy_state 851.094 CMAC_LOG_PRIVACY_FSM_STATE_C

Restrictions Configuring the Cisco uBR900 Series Cable Access Routers 31RestrictionsWhen using the Cisco uBR900 series cable access router, keep the f

Supported Platforms32Cisco IOS Release 12.0(7)TSupported PlatformsThe Cisco uBR900 series cable access router is a standalone device; it works in conj

Supported MIBs and RFCs Configuring the Cisco uBR900 Series Cable Access Routers 33• The CMTS system administrator must ensure appropriate databases a

Supported MIBs and RFCs34Cisco IOS Release 12.0(7)T• Cable-specific MIBs—These MIBs provide information about the cable interface and relatedinformatio

Supported MIBs and RFCs Configuring the Cisco uBR900 Series Cable Access Routers 35The Cisco uBR900 series cable access router also supports the follo

Configuration Tasks36Cisco IOS Release 12.0(7)T— xgcpUpDownNotification—Notification sent when the protocol status changes between upand downFor descrip

Configuring a Host Name and Password Configuring the Cisco uBR900 Series Cable Access Routers 37Configuring a Host Name and PasswordOne of the first con

Configuring Ethernet and Cable Access Router Interfaces38Cisco IOS Release 12.0(7)T• Exit global configuration mode and attempt to reenter it using the

Configuring Routing Configuring the Cisco uBR900 Series Cable Access Routers 39Configuring RoutingDOCSIS-compliant transparent bridging is the factory

Feature Overview4Cisco IOS Release 12.0(7)TIn firewall mode, the Cisco uBR900 series cable access router provides a high-speed Internetconnection for a

Configuring Routing40Cisco IOS Release 12.0(7)TVerifying RoutingTo verify that bridging is not configured, routing is enabled, and that Routing Informa

Configuring Bridging Configuring the Cisco uBR900 Series Cable Access Routers 41Configuring BridgingThe Cisco uBR900 series cable access router is confi

Configuring Bridging42Cisco IOS Release 12.0(7)TWhen the cable interface comes up, the IP address and downstream channel are configuredautomatically.No

Reestablishing DOCSIS-Compliant Bridging Configuring the Cisco uBR900 Series Cable Access Routers 43interface cable-modem0 no ip address no ip directe

Customizing the Cable Access Router Interface44Cisco IOS Release 12.0(7)Tvoice-port 0!!voice-port 1!!interface Ethernet0 no ip address no ip directed-

Using Multiple PCs with the Cable Access Router Configuring the Cisco uBR900 Series Cable Access Routers 45Using Multiple PCs with the Cable Access Ro

Configuration Examples46Cisco IOS Release 12.0(7)TConfiguration ExamplesThis section provides the following configuration examples:• Basic Internet Acce

Basic Internet Access Routing Configuration Configuring the Cisco uBR900 Series Cable Access Routers 47line con 0 transport input noneline vty 0 4 log

Configuration Examples48Cisco IOS Release 12.0(7)TMulticast-Enabled Routing ConfigurationThe following configuration is for a Cisco uBR900 series that u

VoIP Bridging Configuration Using H.323v2 Configuring the Cisco uBR900 Series Cable Access Routers 49VoIP Bridging Configuration Using H.323v2In this e

Data Operations Configuring the Cisco uBR900 Series Cable Access Routers 5Figure 1 Typical Cisco Broadband Data Cable SystemOperating ModesThe broadba

Configuration Examples50Cisco IOS Release 12.0(7)TVoIP Routing Configuration Using H.323v2In this example, the Cisco uBR900 series is configured for IP

NAT/PAT Configuration Configuring the Cisco uBR900 Series Cable Access Routers 51line con 0 exec-timeout 0 0 transport input noneline vty 0 4 login!!e

Configuration Examples52Cisco IOS Release 12.0(7)TVoIP Bridging Configuration Using SGCPIn this example, Cisco uBR924 is configured to support VoIP in b

IPSec Configuration Configuring the Cisco uBR900 Series Cable Access Routers 53!interface cable-modem0 ip address 188.186.1.14 255.255.0.0 no ip direc

Configuration Examples54Cisco IOS Release 12.0(7)Tcrypto ipsec transform-set test-transform ah-md5-hmac esp-des esp-md5-hmac! crypto map test-ipsec lo

L2TP Configuration Configuring the Cisco uBR900 Series Cable Access Routers 55Current configuration:!! Last configuration change at 20:24:59 - Thu Dec

Command Reference56Cisco IOS Release 12.0(7)TCommand ReferenceThis section describes the following cable-modem interface commands for the Cisco uBR900

cable-modem compliant bridge Configuring the Cisco uBR900 Series Cable Access Routers 57cable-modem compliant bridgeTo enable DOCSIS-compliant transpa

cable-modem compliant bridge58Cisco IOS Release 12.0(7)TRelated CommandsCommand Descriptioncable-modem downstream saved channel Modifies the saved down

cable-modem downstream saved channel Configuring the Cisco uBR900 Series Cable Access Routers 59cable-modem downstream saved channelTo modify the save

Feature Overview6Cisco IOS Release 12.0(7)TNote Interactive games are the exception. Although low latency is required in gaming applications,high upst

cable-modem downstream saved channel60Cisco IOS Release 12.0(7)TRelated CommandsCommand Descriptioncable-modem compliant bridge Enables DOCSIS-complia

cable-modem fast-search Configuring the Cisco uBR900 Series Cable Access Routers 61cable-modem fast-searchTo enable a faster downstream search algorit

cable-modem fast-search62Cisco IOS Release 12.0(7)TRelated CommandsCommand Descriptioncable-modem compliant bridge Enables DOCSIS-compliant transparen

cable-modem upstream preamble qpsk Configuring the Cisco uBR900 Series Cable Access Routers 63cable-modem upstream preamble qpskTo enable the QPSK mod

cable-modem upstream preamble qpsk64Cisco IOS Release 12.0(7)TRelated CommandsCommand Descriptioncable-modem compliant bridge Enables DOCSIS-compliant

cable-modem voip best-effort Configuring the Cisco uBR900 Series Cable Access Routers 65cable-modem voip best-effortTo allow voice calls to be sent up

cable-modem voip best-effort66Cisco IOS Release 12.0(7)TRelated CommandsCommand Descriptioncable-modem compliant bridge Enables DOCSIS-compliant trans

interface cable-modem Configuring the Cisco uBR900 Series Cable Access Routers 67interface cable-modemTo specify the cable interface on a Cisco uBR900

interface cable-modem68Cisco IOS Release 12.0(7)TRelated CommandsCommand Descriptioncable-modem compliant bridge Enables DOCSIS-compliant transparent

show bridge cable-modem Configuring the Cisco uBR900 Series Cable Access Routers 69show bridge cable-modemTo display bridging information for a Cisco

Data Operations Configuring the Cisco uBR900 Series Cable Access Routers 7Service AssignmentsEach Cisco uBR900 series cable access router on the netwo

show bridge cable-modem70Cisco IOS Release 12.0(7)TRelated CommandsCommand Descriptionshow controllers cable-modem Displays the current DHCP settings

show controllers cable-modem Configuring the Cisco uBR900 Series Cable Access Routers 71show controllers cable-modemTo display high-level controller i

show controllers cable-modem72Cisco IOS Release 12.0(7)TExamplesFollowing is sample output for the show controllers cable-modem 0 command:uBR924# show

show controllers cable-modem Configuring the Cisco uBR900 Series Cable Access Routers 73 ehdr: 01 06 02 74 34 11 01 status=0x00 bd_index=0x0001

show controllers cable-modem74Cisco IOS Release 12.0(7)Tdata mcfilter MAC control filter for data.DS Downstream Broadcom receiver chip number and ID.US

show controllers cable-modem Configuring the Cisco uBR900 Series Cable Access Routers 75TX PD ring: tx_head_pd tx_tail_pd ehdrIndicates the memory

show controllers cable-modem76Cisco IOS Release 12.0(7)TRelated CommandsCommand Descriptionshow controllers cable-modem bpkm Displays information abou

show controllers cable-modem bpkm Configuring the Cisco uBR900 Series Cable Access Routers 77show controllers cable-modem bpkmTo display information a

show controllers cable-modem bpkm78Cisco IOS Release 12.0(7)TTable 7 describes the fields shown in the display.Related CommandsTable 7 show controllers

show controllers cable-modem des Configuring the Cisco uBR900 Series Cable Access Routers 79show controllers cable-modem desTo display information abo

Feature Overview8Cisco IOS Release 12.0(7)TThe Cisco uBR900 series complies with the DOCSIS standards for interoperable cable accessrouters; it suppor

show controllers cable-modem des80Cisco IOS Release 12.0(7)T pb_req_bytes_to_minislots=0x10 us_des_ctrl=0x00, us_des_sid_1= 0x1234 ds_unencrypted_l

show controllers cable-modem filters Configuring the Cisco uBR900 Series Cable Access Routers 81show controllers cable-modem filtersTo display the regi

show controllers cable-modem filters82Cisco IOS Release 12.0(7)TExamplesMAC and SID filter information is displayed in the following example:uBR924# sh

show controllers cable-modem filters Configuring the Cisco uBR900 Series Cable Access Routers 83Related CommandsMinislots per request Length of each r

show controllers cable-modem lookup-table84Cisco IOS Release 12.0(7)Tshow controllers cable-modem lookup-tableTo display the mini-slot lookup table in

show controllers cable-modem lookup-table Configuring the Cisco uBR900 Series Cable Access Routers 85ExamplesThe mini-slot lookup table is displayed i

show controllers cable-modem lookup-table86Cisco IOS Release 12.0(7)T370: 3C 4B 4B 4B 4B 4B 4B 4B 4B 4B 4B 4B 4B 4B 4B 4B380: 4B 4B 4B 4B 4B 4B

show controllers cable-modem lookup-table Configuring the Cisco uBR900 Series Cable Access Routers 8788: 07BC 07BC 07BC 07BC 07BC 07BC 07BC 07BC90:

show controllers cable-modem mac88Cisco IOS Release 12.0(7)Tshow controllers cable-modem macTo display detailed MAC-layer information for a Cisco uBR9

show controllers cable-modem mac Configuring the Cisco uBR900 Series Cable Access Routers 89Example 1The following sample display shows the MAC log fil

Data Operations Configuring the Cisco uBR900 Series Cable Access Routers 9Figure 3 Cisco uBR900 Series Cable Access Router in a Routing Configuration w

show controllers cable-modem mac90Cisco IOS Release 12.0(7)T00:14:32: 872.856 CMAC_LOG_RANGING_SUCCESS00:14:32: 872.874 CMAC_LOG_STATE_CHANGE dhcp_

show controllers cable-modem mac Configuring the Cisco uBR900 Series Cable Access Routers 91This output indicates that the Cisco uBR900 series acquire

show controllers cable-modem mac92Cisco IOS Release 12.0(7)TThe following example indicates that an event in the cable interface driver caused the int

show controllers cable-modem mac Configuring the Cisco uBR900 Series Cable Access Routers 93CMAC_LOG_RESET_SERVICE_NOT_AVAILABLEThe CMTS has failed th

show controllers cable-modem mac94Cisco IOS Release 12.0(7)TExample 4The following example display for the show controllers cable-modem 0 mac hardware

show controllers cable-modem mac Configuring the Cisco uBR900 Series Cable Access Routers 95TX BD ring with 8 entries at 0x201FB8, tx_count = 0 tx_he

show controllers cable-modem mac96Cisco IOS Release 12.0(7)Tburst profiles: profile 0: 01 19 1D 00 00 00 00 00 00 00 00 00 00 00 00 00

show controllers cable-modem mac Configuring the Cisco uBR900 Series Cable Access Routers 97Example 5The show controllers cable-modem mac state comman

show controllers cable-modem mac98Cisco IOS Release 12.0(7)TBurst Descriptor 0: Interval Usage Code: 1 Modulation Type: 1 Differenti

show controllers cable-modem mac Configuring the Cisco uBR900 Series Cable Access Routers 99 COS 1: Assigned SID: 5 Max Downstream R