第 1 页 共 16 页拟制人 时间同维电子有限公司测试部 梅术堂 2013 年 10 月 23 日CMTS 配置方法摘要：CMTS(Cable Modem Terminal Systems)，CMTS 是管理控制 Cable Modem 的设备，其配置可通过 Consol 接口或以太网接口完成。其配置内容主要有：下行频率、下行调制方式、下行电平、上行频率、上行调制方式、上行电平、CMTS 的 IP 地址等关键字：CMTS缩略语：CMTS(Cable Modem Terminal Systems)第 2 页 共 16 页一、配置文件配置；（1 ） 、新的 CMTS 导入配置1、 用串口连接 CMTS 的 COM 口，波特率为 96002、 CMTS 的 interface GigabitEthernet0/1 配置 IP；UBR7246VXR#configure /进入配置模式UBR7246VXR(config)#interface GigabitEthernet0/1/进入 interface GigabitEthernet0/1 接口UBR7246VXR(config-if)#ip address 172.31.0.200 255.255.0.0/配置 interface GigabitEthernet0/1 IP 地址UBR7246VXR(config-if)#no shutdown/开启接口3、 GigabitEthernet0/1 口连接 PC；PC 配置一个同网段 IP；开启 TFTP 工具；4、 导入配置UBR7246VXR#copy tftp disUBR7246VXR#copy tftp disk2:TFTP 的 IP配置文件名；5、reload6、write（2 ） 、配置文件备份和调用7、导出配置文件：UBR7246VXR#copy running-config tftpAddress or name of remote host ? 172.31.1.63Destination filename ubr7246vxr-confg? 24306 bytes copied in 0.544 secs (44680 bytes/sec)UBR7246VXR#8、 备份当前配置文件UBR7246VXR#copy running-config disk2:Destination filename mst?文件名9、调出已有配置文件UBR7246VXR#copy running-config startup-config第 3 页 共 16 页Destination filename startup-config? run_mst10、reload二、CMTS 配置说明UBR7246VXR#show run/查看当前 CTMS 的详细配置信息Building configuration.Current configuration : 24306 bytes!version 12.2service timestamps debug datetime msecservice timestamps log datetime msecno service password-encryptionservice internal!hostname UBR7246VXR!boot-start-markerboot-end-marker!logging buffered 2000000no logging console!no aaa new-modelcable admission-control preempt priority-voice!cable modulation-profile 222 request 0 16 0 22 qpsk scrambler 152 no-diff 36 fixed qpsk0 1 2048 cable modulation-profile 222 initial 5 34 0 48 qpsk scrambler 152 no-diff 98 fixed qpsk0 1 2048 cable modulation-profile 222 station 5 34 0 48 qpsk scrambler 152 no-diff 98 fixed qpsk0 1 2048 cable modulation-profile 222 a-short 3 76 12 22 qpsk scrambler 152 no-diff 64 shortened qpsk0 1 2048 cable modulation-profile 222 a-long 9 232 0 22 qpsk scrambler 152 no-diff 64 shortened qpsk0 1 2048 cable modulation-profile 222 a-ugs 9 232 0 22 qpsk scrambler 152 no-diff 64 shortened qpsk0 第 4 页 共 16 页1 2048 cable modulation-profile 223 request 0 16 0 22 16qam scrambler 152 no-diff 36 fixed qpsk1 1 2048 cable modulation-profile 223 initial 5 34 0 48 16qam scrambler 152 no-diff 98 fixed qpsk1 1 2048 cable modulation-profile 223 station 5 34 0 48 16qam scrambler 152 no-diff 98 fixed qpsk1 1 2048 cable modulation-profile 223 a-short 4 76 7 22 16qam scrambler 152 no-diff 64 shortened qpsk1 1 2048 cable modulation-profile 223 a-long 9 232 0 22 16qam scrambler 152 no-diff 64 shortened qpsk1 1 2048 cable modulation-profile 223 a-ugs 9 232 0 22 16qam scrambler 152 no-diff 64 shortened qpsk1 1 2048 cable modulation-profile 225 request 0 16 0 22 64qam scrambler 152 no-diff 36 fixed qpsk1 1 2048 cable modulation-profile 225 initial 5 34 0 48 64qam scrambler 152 no-diff 98 fixed qpsk1 1 2048 cable modulation-profile 225 station 5 34 0 48 64qam scrambler 152 no-diff 98 fixed qpsk1 1 2048 cable modulation-profile 225 a-short 6 76 6 22 64qam scrambler 152 no-diff 64 shortened qpsk1 1 2048 cable modulation-profile 225 a-long 9 232 0 22 64qam scrambler 152 no-diff 64 shortened qpsk1 1 2048 cable modulation-profile 225 a-ugs 9 232 0 22 64qam scrambler 152 no-diff 64 shortened qpsk1 1 2048 / upstream 调制方式详细信息no cable qos permission createno cable qos permission updatecable qos permission modems!cable logging badipsourcecable logging layer2eventscable logging overlapip!cable load-balance group 20!ip subnet-zero!ip dhcp relay information optionno ip dhcp relay information check! ip cefip multicast-routing !ipv6 unicast-routingipv6 cefipv6 multicast-routingpacketcable authorize vanilla-docsis-mta第 5 页 共 16 页packetcable gate send-subscriberIDpacketcable multimediamultilink bundle-name authenticatedvpdn enablevpdn multihopvpdn logging!vpdn-group 1!vpdn-group Group-A!vpdn-group PPPoEaccept-dialinprotocol l2tpvirtual-template 1terminate-from hostname sqarelay pppoe bba-group PPPoE!call rsvp-sync!key chain SQAkey 0key-string *&#$-key 1key-string SQAkey 2key-string cablekey 3key-string !#$*&key chain Johnykey 0key-string *&#$-!（1 ） downstream 配置!controller Integrated-Cable 4/0rf-channel 0 cable downstream channel-id 9rf-channel 0 frequency 453000000 annex B modulation 256qam interleave 32/453000000 中心频点/annex B(欧、美规，A：欧规，B ：美规)/256qam:调制方式(Downstream 目前支持：256qam 和 64qam)/interleave-depth (容错交知度，欧规默认为 12、美规认为 32，硬件测试要关注)/annex A 频点宽为 8Mhz, annex B 频宽为 6Mhz;配置 Downstream 时只要配置了 channel 0，其它三个 channel 的信息都会在此基础上加对应频点宽度第 6 页 共 16 页rf-channel 0 rf-power 52.0/配置 channel 0 的功率no rf-channel 0 rf-shutdown/开启 channel 0rf-channel 1 cable downstream channel-id 10rf-channel 1 frequency 459000000 annex B modulation 256qam interleave 32rf-channel 1 rf-power 52.0no rf-channel 1 rf-shutdownrf-channel 2 cable downstream channel-id 11rf-channel 2 frequency 46500000