Monitoring Narrowband and Wideband Components
The Cisco IOS CLI includes commands that can be issued on the CMTS for the following:
For detailed information on the syntax, usage, and additional examples for each command, see the documents shown in Table 7-1 .
NoteMany of the commands used to configure the Cisco uBR10012 router and the Cisco Wideband SIP and Wideband SPAare not currently part of the command set that can be searched with the Cisco Command Lookup Tool (available on Cisco.com). Use the documents listed in Table 7-1 to find information on these commands.
Monitoring Wideband Line Cards
The following section provides commands used to monitor Cisco Wideband line cards:
The show diag command is useful for monitoring Cisco Wideband SPA, Wideband SIP, and wideband line cards. It shows basic information such as how long the card or wideband SPA (or SIP) has been up, its voltage status, and the software image version it is running.
In addition, the show controllers modular-cable and show controllers jacket commands displays extensive line card information including hardware device register values. The show controllers commands are intended for use only by Cisco Systems technical support personnel.
show diag for Wideband SIPs
To verify that the Wideband SIP is powered on, use the show diag command. If show diag displays any output, the Wideband SIP is powered on. The show diag command provides a variety of information on the Wideband SIP. In the following example, the hardware type of the Wideband SIP is 2jacket-1 card.
Card detected 16:46:44 ago
Card uptime 0 days, 16 hours, 46 minutes, 36 seconds
Card idle time 0 days, 14 hours, 22 minutes, 34 seconds
Voltage status: 3.3V Nominal 2.5V Nominal 1.5V Nominal 12V Nominal
EEPROM contents, slot 1/0:
Top Assy. Part Number : 800-22843-04
PCB Serial Number : CSJ09030613
If show diag displays no output, the Wideband SIP is not powered on.
Router# show diag 1/0 // Displays no output
show diag for the Cisco uBR-MC3GX60V Line Card
To verify if the Cisco uBR-MC3GX60V line card is powered on, use the show diag command. If show diag displays any output, then the Cisco uBR-MC3GX60V line card is powered on.
ubr10k-clc-3g60 card, 15 ports
Card detected 02:34:34 ago
Card uptime 0 days, 2 hours, 35 minutes, 0 seconds
Voltage status: 3.3V Nominal 2.5V Nominal 1.8V Nominal 1.5V Nominal 1.2V Nominal 1.0V Nominal 1.0V Nominal 1.1V Core Nominal 1.1V Cpu Plat Nominal
EEPROM contents, slot 5/0:
Top Assy. Part Number : 800-33189-01
Product Identifier (PID) : UBR-MC3GX60V
Version Identifier (VID) : V01
PCB Serial Number : CSJ13462929
Licensing Transaction ID : 72 DS, 60 US
Compiled Thu 17-Jun-10 02:39
Operational Image version, slot 5/0
Cisco IOS Software, 10000 Software (UBR10KG4CLC-LCK8-M), Experimental Version 12.2(20100928:051040) [release-view 140]
Compiled Fri 08-Oct-10 20:20 by jsmith
Code MD5 BC9C0941705D7B99E2D1FC5C374824FB
FPGA MD5 00000000000000000000000000000000
Expected Switchover Action: NO INFORMATION
If show diag displays no output, then the Cisco uBR-MC3GX60V line card is not powered on.
show hw-module bay oir
To verify that the Wideband SPA is powered on, use the show hw-module bay oir command. If the Operational Status is “ok,” the Wideband SPA is powered on and operational.
Router# show hw-module bay 1/0/0 oir
Module Model Operational Status
------------- -------------------- ------------------------
bay 1/0/0 SPA-24XDS-SFP ok
If the show hw-module bay oir command displays “admin down” in the Operational Status field, the Wideband SPA has been administratively disabled.
Router# show hw-module bay 1/0/0 oir
Module Model Operational Status
------------- -------------------- ------------------------
bay 1/0/0 SPA-24XDS-SFP admin down
show diag for Wideband SPA
To display hardware and diagnostic information for a Wideband SPA, use the show diag command for slot, subslot, and bay number.
24rfchannel-spa-1 card, 1 port + 1 redundant port
Card detected 16:47:55 ago
Card uptime: Not Supported
Card idle time: Not Supported
Voltage status: 3.3V (+3.291) NOMINAL 2.5V (+2.495) NOMINAL
1.2V (+1.201) NOMINAL 1.8V (+1.811) FIXED
EEPROM contents, slot 1/0/0:
PCB Serial Number : CSJ09379726
Part Number Revision : 05
Product (FRU) Number : SPA-24XDS-SFP
Version Identifier (VID) : V01
Top Assy. Part Number : 68-2562-03
MAC Address : 0019.06a5.d9b2
MAC Address block size : 1
Manufacturing Test Data : 00 00 00 00 00 00 00 00
Field Diagnostics Data : 00 00 00 00 00 00 00 00
Calibration Data : Minimum: 0 dBmV, Maximum: 0 dBmV
Platform features : 00 00 00 00 00 00 00 00
show controllers modular-cable for Cisco uBR-MC3GX60V Line Card
The show controllers modular-cable command for Cisco uBR-MC3GX60V line card has a number of options:
Table 7-2 show controllers modular-cable Command Options
|
|
all |
Displays all M-CMTS information. |
association |
Displays interface association information. |
bpi-entry |
Displays BPI information |
brief |
Displays brief M-CMTS information |
config |
Displays JIB3DS configuration information |
counters |
Displays channel counters. |
crashinfo |
Displays CLC crash information |
errors |
Displays errors encountered. |
fpga_version |
Displays FPGA version. |
ge_phy |
Displays Gigabit Ethernet PHY information. |
iofpga |
Displays IOFPGA information. |
mapping |
Displays mapping of WB and RF Channels. |
registers |
Displays JIB3DS registers. |
rf-channel |
Displays RF channels. |
sfp |
Displays SFP information. |
status |
Displays JIB3DS status. |
wideband-channel |
Displays wideband channels. |
In the following example, the brief keyword option displays information such as per channel configuration status and hardware registers, which contains configuration and status.
router# show controllers modular-Cable 5/0/2 brief
Modular Cable Controller 5/0/2:
----------------------------------
Channel 49 Annex = B Modulation = 256 QAM
Channel 50 Annex = B Modulation = 256 QAM
Channel 51 Annex = B Modulation = 256 QAM
Channel 52 Annex = B Modulation = 256 QAM
Channel 53 Annex = B Modulation = 256 QAM
Channel 54 Annex = B Modulation = 256 QAM
Channel 55 Annex = B Modulation = 256 QAM
Channel 56 Annex = B Modulation = 256 QAM
Channel 57 Annex = B Modulation = 256 QAM
Channel 58 Annex = B Modulation = 64 QAM
Channel 59 Annex = B Modulation = 256 QAM
Channel 60 Annex = B Modulation = 256 QAM
Channel 61 Annex = B Modulation = 256 QAM
Channel 62 Annex = B Modulation = 256 QAM
Channel 63 Annex = B Modulation = 256 QAM
Channel 64 Annex = B Modulation = 256 QAM
Channel 65 Annex = B Modulation = 256 QAM
Channel 66 Annex = B Modulation = 256 QAM
Channel 67 Annex = B Modulation = 256 QAM
Channel 68 Annex = B Modulation = 256 QAM
Channel 69 Annex = B Modulation = 256 QAM
Channel 70 Annex = B Modulation = 256 QAM
Channel 71 Annex = B Modulation = 256 QAM
Channel 72 Annex = B Modulation = 256 QAM
Jib3-DS Device Information:
---------------------------
Jib3-DS Version = 2.2.1.13
SW Rev ID = 0x00020002 HW Rev ID = 0x0001000D
Device Type: Coldplay 3G60
Device Object Address: 0x1F7CE480
Ironbus Base Channel: 0xC02
Total Non-bonded Channels..........= 72
Per-Controller Non-bonded Channels = 24
Total Bonded Channels..............= 96
Per-Controller Bonded Channels.....= 32
Number of PHS Rules...........= 12K (0x3000)
Number of BPI Table Entries...= 24K (0x6000)
Number of Service Flows.......= 64K (0x10000)
SANTANA device initialized : YES
SANTANA device status : 00000007
SANTANA ERP CLK DLL LOCKED: YES
SANTANA CORE CLK DLL LOCKED: YES
SANTANA ERP DLL CLKIN LOST: NO
SANTANA CORE DLL CLKIN LOST: NO
san_fpga_rev_id Addr[0xF8900000] Offset[0x0000] = [0x00000001]
san_hw_fpga_rel_id Addr[0xF8900004] Offset[0x0004] = [0x00000006]
san_control_reg Addr[0xF8900010] Offset[0x0010] = [0x00000000]
san_status_reg Addr[0xF8900020] Offset[0x0020] = [0x00000007]
san_fatal_int_first Addr[0xF890003C] Offset[0x003C] = [0x00000000]
san_glb_isr_reg Addr[0xF8900040] Offset[0x0040] = [0x00000000]
san_fatal_int_src Addr[0xF8900050] Offset[0x0050] = [0x00000000]
san_fatal_int_en Addr[0xF8900054] Offset[0x0054] = [0x0000007F]
san_testpoint_select_reg Addr[0xF8900060] Offset[0x0060] = [0x00000000]
san_testpoint_reg Addr[0xF8900064] Offset[0x0064] = [0x00000001]
san_proc_irq_src_reg Addr[0xF8900400] Offset[0x0400] = [0x00000000]
san_proc_irq_en_reg Addr[0xF8900404] Offset[0x0404] = [0x0000001F]
san_erp_tp_sel Addr[0xF8900450] Offset[0x0450] = [0x00000000]
san_erp_tp Addr[0xF8900454] Offset[0x0454] = [0x00000000]
san_erp_cfg Addr[0xF8900460] Offset[0x0460] = [0x00000000]
san_erp_err_record Addr[0xF8900464] Offset[0x0464] = [0x00000000]
san_erp_err_addr Addr[0xF8900468] Offset[0x0468] = [0x00000000]
san_erp_err_wd_record Addr[0xF890046C] Offset[0x046C] = [0x00000000]
san_proc_err_addr Addr[0xF8900490] Offset[0x0490] = [0x00000000]
san_en_traffic Addr[0xF89008A8] Offset[0x08A8] = [0x00000021]
san_egres_frm0qam_log_reg Addr[0xF89008AC] Offset[0x08AC] = [0x00000000]
san_egres_frm1qam_log_reg Addr[0xF89008B0] Offset[0x08B0] = [0x00000000]
san_egres_frm2qam_log_reg Addr[0xF89008B4] Offset[0x08B4] = [0x00000000]
san_egres_frm0qam_prio_log_reg Addr[0xF89008B8] Offset[0x08B8] = [0x00000000]
san_egres_frm1qam_prio_log_reg Addr[0xF89008BC] Offset[0x08BC] = [0x00000000]
san_egres_frm2qam_prio_log_reg Addr[0xF89008C0] Offset[0x08C0] = [0x00000000]
san_egres_frm0tun_prio_log_reg Addr[0xF89008C4] Offset[0x08C4] = [0x00000000]
san_egres_frm1tun_prio_log_reg Addr[0xF89008C8] Offset[0x08C8] = [0x00000000]
san_egres_frm2tun_prio_log_reg Addr[0xF89008CC] Offset[0x08CC] = [0x00000000]
san_egres_frm0tun_log_reg Addr[0xF89008D0] Offset[0x08D0] = [0x00000000]
san_egres_frm1tun_log_reg Addr[0xF89008D4] Offset[0x08D4] = [0x00000000]
san_egres_frm2tun_log_reg Addr[0xF89008D8] Offset[0x08D8] = [0x00000000]
san_total_col2san_pkt_cnt Addr[0xF8901000] Offset[0x1000] = [0x0015A738]
san_frm0_byp_pkt_drp_cnt Addr[0xF8901024] Offset[0x1024] = [0x00000000]
san_frm1_byp_pkt_drp_cnt Addr[0xF8901028] Offset[0x1028] = [0x00000000]
san_frm2_byp_pkt_drp_cnt Addr[0xF890102C] Offset[0x102C] = [0x00000000]
san_frm0_qam_in_pkt_drp_cnt_addr_reg Addr[0xF8901048] Offset[0x1048] = [0x00000018]
san_frm1_qam_in_pkt_drp_cnt_addr_reg Addr[0xF890104C] Offset[0x104C] = [0x00000018]
san_frm2_qam_in_pkt_drp_cnt_addr_reg Addr[0xF8901050] Offset[0x1050] = [0x00000018]
san_frm0_qam_in_pkt_drp_cnt_data_reg Addr[0xF890106C] Offset[0x106C] = [0x00000000]
san_frm1_qam_in_pkt_drp_cnt_data_reg Addr[0xF8901070] Offset[0x1070] = [0x00000000]
san_frm2_qam_in_pkt_drp_cnt_data_reg Addr[0xF8901074] Offset[0x1074] = [0x00000000]
san_frm0_qam_pkt_drp_cnt_addr_reg Addr[0xF8901078] Offset[0x1078] = [0x00000001]
san_frm1_qam_pkt_drp_cnt_addr_reg Addr[0xF890107C] Offset[0x107C] = [0x00000001]
san_frm2_qam_pkt_drp_cnt_addr_reg Addr[0xF8901080] Offset[0x1080] = [0x00000001]
san_frm0_qam_pkt_drp_cnt_data_reg Addr[0xF8901084] Offset[0x1084] = [0x00000000]
san_frm1_qam_pkt_drp_cnt_data_reg Addr[0xF8901088] Offset[0x1088] = [0x00000000]
san_frm2_qam_pkt_drp_cnt_data_reg Addr[0xF890108C] Offset[0x108C] = [0x00000000]
san_gmac0_taildrop_pkt_cnt_reg Addr[0xF8901300] Offset[0x1300] = [0x00000000]
san_gmac1_taildrop_pkt_cnt_reg Addr[0xF8901304] Offset[0x1304] = [0x00000000]
san_gmac2_taildrop_pkt_cnt_reg Addr[0xF8901308] Offset[0x1308] = [0x00000000]
san_gmac3_taildrop_pkt_cnt_reg Addr[0xF890130C] Offset[0x130C] = [0x00000000]
san_gmac4_taildrop_pkt_cnt_reg Addr[0xF8901310] Offset[0x1310] = [0x00000000]
san_gmac5_taildrop_pkt_cnt_reg Addr[0xF8901314] Offset[0x1314] = [0x00000000]
san_ipac_drop_pkt_cnt_reg Addr[0xF8901318] Offset[0x1318] = [0x00000000]
san_san2col_pkt_cnt_reg Addr[0xF890131C] Offset[0x131C] = [0x00000006]
san_san2col_loopback_pkt_cnt_reg Addr[0xF8901320] Offset[0x1320] = [0x00000000]
san_ipac_err_pkt_cnt_reg Addr[0xF8901324] Offset[0x1324] = [0x00000000]
san_ipac_none_depi_pkt_cnt_reg Addr[0xF8901328] Offset[0x1328] = [0x00000006]
san_ipac_depi_ctrl_pkt_cnt_reg Addr[0xF890132C] Offset[0x132C] = [0x00000000]
san_ipac_depi_dlm_pkt_cnt_reg Addr[0xF8901330] Offset[0x1330] = [0x00000000]
san_egress_bp_thresh0_reg Addr[0xF8900884] Offset[0x0884] = [0x00008844]
san_egress_irq_src_reg Addr[0xF8900888] Offset[0x0888] = [0x00000000]
san_egress_irq_enb_reg Addr[0xF890088C] Offset[0x088C] = [0x0003FFFF]
san_egress_fifo_full_reg Addr[0xF8900894] Offset[0x0894] = [0x00000000]
san_egress_fifo_emp_reg Addr[0xF8900898] Offset[0x0898] = [0x0007FFFF]
san_egress_fifo_ovfl_reg Addr[0xF890089C] Offset[0x089C] = [0x00000000]
san_egress_fifo_ufl_reg Addr[0xF89008A0] Offset[0x08A0] = [0x00000000]
san_egress_fifo_perr_reg Addr[0xF89008A4] Offset[0x08A4] = [0x00000000]
san_ingress_irq_src_reg Addr[0xF8900CA0] Offset[0x0CA0] = [0x00000015]
san_ingress_irq_enb_reg Addr[0xF8900CA4] Offset[0x0CA4] = [0x00000FC0]
san_ingress_fifo_full_reg Addr[0xF8900CAC] Offset[0x0CAC] = [0x00000000]
san_ingress_fifo_emp_reg Addr[0xF8900CB0] Offset[0x0CB0] = [0x000FFFFF]
san_ingress_fifo_ovfl_reg Addr[0xF8900CB4] Offset[0x0CB4] = [0x00000000]
san_ingress_fifo_ufl_reg Addr[0xF8900CB8] Offset[0x0CB8] = [0x00000000]
san_ingress_fifo_perr_reg Addr[0xF8900CBC] Offset[0x0CBC] = [0x00000000]
san_gmac_stats_data_reg Addr[0xF8902000] Offset[0x2000] = [0x000005BF]
san_gmac_stats_addr_reg Addr[0xF8902004] Offset[0x2004] = [0x00000000]
show controllers modular-cable <controller> sfp for Cisco uBR-MC3GX60V Line Card
To monitor the SFPs plugged into the Cisco uBR-MC3GX60V line card, use the show controller modular-cable <controller> sfp command. It displays the SFP presence, manufacturer, and most importantly, link status. The Cisco uBR-MC3GX60V line card has six SFP ports, ports 0 to 5.
The example below shows that an SFP is plugged into Port 4, but not 5 and the SFP present has an UP link state.
router# show controllers modular-Cable 5/0/2 sfp
SFP in Port4 is Present. Init status Success <<<———SFP 4 is present
TX_DISABLE not set, LOS not detected, TX_FAULT not detected
LOS detection supported: no
Tx Fault detection supported: no
LOS:0, PRES:0, TX_FAULT:0
Link Status of the MV88E1146C DS Gige Phy Port: UP <<<——— link is up
Copper supported length: 100 m
Upper bit rate limit: not specified
Lower bit rate limit: not specified
Date code (yy/mm/dd): 09/04/20
Vendor Part Number (PN): ABCU-5710RZ-CS2
Vendor SN (SN): AGM131620Y4
Enhanced options implemented: none
Diagnostic monitoring implemented: none
0x00: 03 04 00 00 00 00 08 00 00 00 00 01 0D 00 00 00
0x10: 00 00 64 00 43 49 53 43 4F 2D 41 56 41 47 4F 20
0x20: 20 20 20 20 01 00 17 6A 41 42 43 55 2D 35 37 31
0x30: 30 52 5A 2D 43 53 32 20 20 20 20 20 41 0C C1 13
0x40: 00 10 00 00 41 47 4D 31 33 31 36 32 30 59 34 20
0x50: 20 20 20 20 30 39 30 34 32 30 20 20 00 00 00 AE
0x60: 00 00 06 90 39 AC E3 A7 43 49 F3 17 7B E1 30 B8
0x70: 19 04 B3 00 00 00 00 00 00 00 00 00 2A 30 86 F8
0x80: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0x90: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0xA0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0xB0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0xC0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0xD0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
Phase Exit Code: Success 0
Register 0x00: 0140 016D 0141 0CC1 0C01 CDE1 000D 2801
Register 0x08: 45AF 0E00 3800 0000 0000 0000 0000 F000
Register 0x10: 0078 AC4C 0000 0000 0C68 0000 0000 0000
Register 0x18: 4100 0000 000A 9088 0000 0000 0000 0000
SFP in Port5 is NOT PRESENT <<<——— SFP 5 is not present
show controllers modular-cable for Wideband SPA
The Wideband SPA is a controller and the show controllers modular-cable command displays information about the SPA, its Gigabit Ethernet ports, installed SFP modules, wideband channels, and so on.
The following example provides sample show controllers modular-cable output for the Wideband SPA located in slot 1, subslot 0, bay 0 of a Cisco uBR10012 router. In the output, the Gigabit Ethernet Port Selected field indicates that Port 1 is the active Gigabit Ethernet port on the Wideband SPA.
Router# show controllers modular-cable 1/0/0 brief
Host 12V is enabled and is okay.
Power has been enabled to the SPA.
SPA reports power enabled and okay.
SPA reports it is okay and is NOT held in reset.
Gigabit Ethernet Port Selected : Port 1
Receive Interface : In Reset
Receive Interface : Disabled
Transmit Interface : Out of Reset
Transmit Interface : Enabled
Primary Receive Clock : Disabled
Backup Receive Clock : Disabled
SFP [Port 0] : 1000BASE-SX Present
Tx Enabled , LOS Detected , TxFault Not Detected
Link Status [Port 0] : DOWN
SFP [Port 1] : 1000BASE-T Present
Tx Enabled , LOS Not Detected , TxFault Not Detected
Link Status [Port 1] : UP
Wideband Channel information
Channel RF bitmap Police Info: Bytes Interval
Modulation corresponds to : QAM 256
Annex corresponds to : Annex B
Modulation Data :GE Interframe Gap = 12 , MPEG-TS Frames per pkt = 4
SPA IP address = 0.0.0.0 SPA MAC Addr = 0012.001A.888B
QAM Channel Rate Rate adjust State
Idx Interrupt Register Interrupt Bit Total Count Masked:
69 blz_sp_int_stat_reg_0 spi_train_vld 24 YES
84 spa_brd_int_stat_reg sp_int_0 24 NO
85 spa_brd_int_stat_reg scc_int 2 NO
86 spa_brd_int_stat_reg phy1_int 1 NO
87 spa_brd_int_stat_reg phy0_int 1 NO
92 spa_brd_int_stat_reg temp1_int 2 NO
93 spa_brd_int_stat_reg temp0_int 2 NO
97 bm_int_stat_reg bm_spa_brd 26 NO
To display information about the SFP module in a Wideband SPA port, use the show controllers modular-cable with the sfp keyword. In the following example, the information is for the SFP module in Port 1 is displayed.
Router#
show controllers modular-cable 1/0/0 sfp port 1
SFP TX FAULT is not detected
SONET compliance: not specified
Gigabit Ethernet compliance: 1000BASE-SX
Fibre Channel link length: not specified
Fibre Channel transmitter technology: not specified
Fibre Channel transmission media: not specified
Fibre Channel speed: not specified
50 micron-multimode fiber supported length: 550 m
62.5 micron-multimode fiber supported length: 270 m
Upper bit rate limit: not specified
Lower bit rate limit: not specified
Date code (yy/mm/dd): 05/02/23
Vendor name: CISCO-AGILENT
Vendor Part Number (PN): QFBR-5766LP Vendor Rev:
Vendor SN (SN): AGS090855CE
Enhanced options implemented: none
Diagnostic monitoring implemented: none
0x00: 03 04 07 00 00 00 01 00 00 00 00 01 0D 00 00 00
0x10: 37 1B 00 00 43 49 53 43 4F 2D 41 47 49 4C 45 4E
0x20: 54 20 20 20 00 00 30 D3 51 46 42 52 2D 35 37 36
0x30: 36 4C 50 20 20 20 20 20 20 20 20 20 03 52 00 B5
0x40: 00 1A 00 00 41 47 53 30 39 30 38 35 35 43 45 20
0x50: 20 20 20 20 30 35 30 32 32 33 20 20 00 00 00 C4
0x60: 00 00 06 C9 F0 FA 7C 01 B3 C8 41 6B 39 04 FC 85
0x70: BB 20 9E 00 00 00 00 00 00 00 00 00 B4 94 52 CC
0x80: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0x90: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
show controllers cable
To display information about RF channels and their attributes that are added to the cable MAC domain, use the show controllers cable slot/subslot/port downstream command. This applies to all MAC domain card types, Cisco uBR-MC5X20, Cisco UBR-MC20X20V, Cisco uBR-MC8X8V, and Cisco uBR-MC3GX60V line cards.
The following configuration shows the modular-cable interface channels of a SPA in bay 1/1/0 added to the MAC domain c8/0/0:
Router# show run interface c8/0/0 | inc Modular-Cable
downstream Modular-Cable 1/1/0 rf-channel 1 upstream 1
downstream Modular-Cable 1/1/0 rf-channel 4 upstream 0
downstream Modular-Cable 1/1/0 rf-channel 7 upstream 0
The MAC domain configuration shown in the preceding configuration provides the following SPA RF downstream channel information in the show controllers cable slot/subslot/port downstream command output (in this example, the output is for cable 8/0/0 where a uBR-MC5X20 line card is in subslot 8/0):
Router# show controllers cable 8/0/0 downstream
Cable8/0/0 Downstream is up <<<——— local MC5X20 downstream
Frequency 459.0000 MHz, Channel Width 6 MHz, 64-QAM, Symbol Rate 5.056941 Msps
FEC ITU-T J.83 Annex B, R/S Interleave I=32, J=4
Downstream channel ID: 119
DSA: 0 REQs 0 RSPs 0 ACKs
0 Successful DSAs 0 DSA Failures
DSC: 0 REQs 0 RSPs 0 ACKs
0 Successful DSCs 0 DSC Failures
0 Successful DSDs 0 DSD Failures
DCC: 0 REQs 0 RSPs 0 ACKs
0 Successful DCCs 0 DCC Failures
DCC end of transaction counts:
DCC unknown cause(0) offline(0) if down(0) no cm(0)
DCC no resource(0) no retries(0) reject(0) unknown state (0)
DCC rebuild err (0) T15 timeout(0) wrong channel(0) reinit MAC (0)
Local total modems 0, modems active 0, total DS flows 1
NB DS Mo 1/1/0:1, STATE: UP
Frequency 561.0000 MHz 64-QAM, ANNEX B, R/S Interleave I=32, J=4
Bandwidth (Kbps): 1078, Load Percent: 0
Channel ID: 49, US MAP: 0x0002
Total modems: 2, modems active : 2, total DS flows: 3
NB DS Mo 1/1/0:4, STATE: UP
Frequency 717.0000 MHz 64-QAM, ANNEX B, R/S Interleave I=32, J=4
Bandwidth (Kbps): 2697, Load Percent: 0
Channel ID: 52, US MAP: 0x0001
Total modems: 6, modems active : 6, total DS flows: 7
NB DS Mo 1/1/0:7, STATE: UP
Frequency 735.0000 MHz 64-QAM, ANNEX B, R/S Interleave I=32, J=4
Bandwidth (Kbps): 1078, Load Percent: 0
Channel ID: 55, US MAP: 0x0001
Total modems: 0, modems active : 0, total DS flows: 1
DS_chan_id RFID Interface
--------------------------------------
--------------------------------------
----------------------------------------------
----------------------------------------------
Upstream Controller Monitoring
To display information about the number of MAP and UCD MAC management messages sent on a DS channel (that has been added to primary-capable channels that are part of a MAC domain), use the show controllers cable slot/subslot/port upstream command.
The following configuration shows the modular-cable interface channels added to the MAC domain c8/0/0:
Router# show run interface c8/0/0 | inc Modular-Cable
downstream Modular-Cable 1/1/0 rf-channel 1 upstream 1
downstream Modular-Cable 1/1/0 rf-channel 4 upstream 0
downstream Modular-Cable 1/1/0 rf-channel 7 upstream 0
The MAC domain configuration shown in the preceding configuration provides the following information for US channels associated with SPA DS channels that are added to the MAC domain in the show controllers cable slot/subslot/port upstream command output (in this example, the output is for cable8/0/0):
Router# show controllers cable 8/0/0 upstream 0
Cable8/0/0 Upstream 0 is up
Frequency 11.400 MHz, Channel Width 3.200 MHz, Symbol Rate 2.560 Msps
Modulations (64-QAM) - A-short 64-QAM, A-long 64-QAM, A-ugs 64-QAM
Mapped to non-shared connector 2 and receiver 2
Spectrum Group is overridden
MER(SNR) - Unknown - no modems online.
Nominal Input Power Level 0 dBmV, Tx Timing Offset 0
Ranging Backoff Start 3, Ranging Backoff End 6
US timing offset adjustment type 0, value 0
Ranging Insertion Interval automatic (60 ms)
Tx Backoff Start 3, Tx Backoff End 5
Modulation Profile Group 221
part_id=0x3140, rev_id=0x03, rev2_id=0x00
nb_agc_thr=0x0000, nb_agc_nom=0x0000
Request Load Reg Size=0x0E
Minislot Size in number of Timebase Ticks is = 2
Minislot Size in Symbols = 32
Minislot Size in Bytes = 24
Map Advance (Dynamic) : 2830 usecs
Map Count Local = 6540889
No MAP buffer= 0x0 No Remote MAP buffer= 0x0
Map Counts Remote: Controller 1/1/0 = 26148778
Controller 1/1/0:4 = 6646
Controller 1/1/0:7 = 6646
PHY: us errors 0 us recoveries 0 (enp 0)
MAC PHY TSS: tss error start 0 tss error end 0
MAC PHY Status: bcm3140 status 0 lookout status 0
PHY: TSS late 0 discontinuous 0
PHY: TSS mis-match 0 not-aligned 0
PHY: TSS missed snapshots from phy 0
MAP/UCD Replication Instructions:
Controller 1/1/0 index = 121, bitmap = 0x0090
Dynamic Services Stats: <<<———Useful for voice services monitoring
DSA: 0 REQs 0 RSPs 0 ACKs
0 Successful DSAs 0 DSA Failures
DSC: 0 REQs 0 RSPs 0 ACKs
0 Successful DSCs 0 DSC Failures
0 Successful DSDs 0 DSD Failures
Dropped MAC messages: (none)
The Dynamic Services Stats section is useful in voice services monitoring. If an upstream is too congested, DOCSIS dynamic services messages may be dropped in the upstream and those drops will be counted and reflected in the command output.
Monitoring Wideband Channels
The following commands are useful for monitoring wideband channels:
show interface wideband-cable
To display information about a wideband-cable interface (wideband channel), use the show interface wideband-cable command. Wideband channels are similar to cable interfaces and information about them is also displayed with the show ip interfaces and show interfaces commands.
The following example displays the show interface wideband-cable command output for wideband channel 0 on the Wideband SPA in slot/subslot/bay 1/0/0.
Router# show interface wideband-cable 1/0/0:0
Wideband-Cable1/0/0:0 is up, line protocol is up
Hardware is Wideband CMTS Cable interface, address is 0012.001a.8896 (bia 0012.001a.8896)
MTU 1500 bytes, BW 74730 Kbit, def 74730 Kbit DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation MCNS, loopback not set
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:16, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Output queue: 0/40 (size/max)
30 second input rate 0 bits/sec, 0 packets/sec
30 second output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
17470 packets output, 1810488 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
Hardware Status and Line Protocol Status for a Wideband-Channel and Modular-Cable Interface
When a wideband-channel cable interface is specified in the show interface wideband-cable command or another Cisco IOS command that displays hardware status (initializing, down, up, or administratively down) and line protocol status (down or up) for a cable interface, the following applies:
- In the case of a Wideband SIP and SPA, the hardware status for a wideband cable interface will be up if the Wideband SPA is installed in the Wideband SIP, and both are powered on, and config mode has been entered for the interface.
- In the case of a Cisco uBR-MC3GX60V or Cisco UBR-MC20X20V line card, the hardware status for a wideband-cable interface will be up if the line card is installed, powered on, and config mode has been entered for the interface at least once.
- The line protocol for a wideband-channel cable interface will be up if the wideband channel is associated with at least one RF channel by configuration and the following parameters have been set for the RF channel:
– Frequency
– IP-address
– MAC-address
– DEPI-remote-id
If the line protocol for a wideband cable interface is up, all wideband cable configuration information needed to successfully send data is present. However, additional configuration information may be needed to complete the Wideband SPA configuration process. For more information on Wideband SPA configuration procedures, see the Cisco uBR10012 Universal Broadband Router SIP and SPA Software Configuration guide.
For more information about the Cisco UBR-MC20X20V line card based wideband-cable interface, see Configuring the Cisco UBR-MC20X20V Cable Interface Line Card guide.
For more information about the Cisco uBR-MC3GX60V line card based wideband-cable interface, see Configuring the Cisco uBR-MC3GX60V Cable Interface Line Card guide.
When a modular-cable interface is specified in the show interface modular-cable command or another Cisco IOS command that displays hardware status and line protocol status for a cable interface, such as the show ip interfaces brief command, the following applies:
- In the case of a Wideband SIP and SPA, the hardware status for a modular-cable interface will be up if the Wideband SPA is installed in the Wideband SIP and both are powered on.
- In the case of a Cisco UBR-MC20X20V line card, the hardware status for a integrated-cable interface will be up if the line card is installed, powered on, and config mode has been entered for the interface at least once.
- In the case of a Cisco uBR-MC3GX60V line card, the hardware status for an modular-channel cable interface will be up if the line card is installed, powered on, and config mode has been entered for the interface at least once.
- The line protocol for a modular-cable interface will be up if the following settings have been applied to the RF channel:
- The upstream channels from the MAC domain cable interface line card must be associated with the modular-cable interface or integrated-cable downstream channels in a given cable MAC domain.
- The total bandwidth allocated for the interface must be greater than or equal to 1 percent.
- In the case of a Wideband SPA, the modular host must be configured on the modular-cable controller for the corresponding SPA. The modular-host is the line card responsible for managing per-modem BPI, PHS, and DSID indexes.
- In the case of an M-CMTS modular-cable interface, a DEPI remote ID must be configured for this channel. The UDP port number must not be configured in this case.
- RF channel frequency parameter must be set for the RF channel.
show hw-module bay and show controller
To display additional information about a wideband channel of a Wideband SPA, use the show hw-module bay commands. Use the show controller modular-cable commands for a Cisco uBR-MC3GX60V line card, and the show controller integrated-cable commands for a Cisco UBR-MC20X20V line card. You can then specify one of the following keywords indicating the particular type of information you want to display:
- association —Displays wideband-to-narrowband MAC domain association information. The association of a wideband channel to a MAC domain is made when a primary downstream channel for the fiber node is configured with the downstream command and the wideband interface channels are also in the fiber node.
- config —Displays wideband channel configuration information.
- counters wideband-channel—Displays wideband channel statistics.
- mapping —Displays the mapping of RF channels to wideband channels.
To display wideband-to-narrowband channel association (the MAC domains using the wideband channel) information, use the show hw-module bay command with the association and wideband-channel keywords. If you specify a wideband channel number after the wideband-channel keyword, the output is shown only for that channel:
Router# show hw-module bay 1/0/0 association wideband-channel 0
WB BG Bundle NB NB chan Reserved Total
channel ID num channel ID CIR CIR
Wideband-Cable1/0/0:0 24 1 Cable5/0/1 120 0 0
In the preceding example, the following information is displayed for each wideband channel:
Table 7-3 show hw-module bay association wideband-channel Command Output Field Descriptions
|
|
WB channel |
Wideband-cable interface (wideband channel). |
BG ID |
Bonding-group ID for the wideband channel. |
Bundle num |
Number of the virtual bundle interface where the wideband channel is a member. |
NB channel |
Slot/subslot/port of the for MAC domains using for the wideband channel. |
NB channel ID |
DOCSIS channel ID for the primary downstream channel. Because the Cisco UBR-MC20X20V and Cisco uBR-MC3GX60V line cards do not natively have a local downstream channel, the ID will show as 0 in these cases. |
Reserved CIR |
Reserved committed information rate (CIR). Because CIR is not currently supported for wideband traffic, reserved CIR is always 0. |
Total CIR |
CIR that is currently available. |
To display the configuration information for a wideband channel, use the show hw-module bay command with the config and wideband-channel keywords. If you do not specify a wideband channel number after the wideband-channel keyword, the output is shown for all wideband channels:
Router# show hw-module bay 1/0/0 config wideband-channel
WB BG Bundle WB Host Primary
channel ID num Slot/Subslot BG
Wideband-Cable1/0/0:0 1 123 5/0 Yes
Wideband-Cable1/0/0:1 2 123 5/0 Yes
Wideband-Cable1/0/0:2 3 123 5/0 Yes
Wideband-Cable1/0/0:3 4 123 5/0 Yes
Wideband-Cable1/0/0:4 5 123 5/0 Yes
Wideband-Cable1/0/0:5 6 123 5/0 Yes
Wideband-Cable1/0/0:6 7 123 5/0 Yes
Wideband-Cable1/0/0:7 8 123 5/0 Yes
Wideband-Cable1/0/0:8 9 123 5/0 Yes
Wideband-Cable1/0/0:9 10 123 5/0 Yes
Wideband-Cable1/0/0:10 11 123 5/0 Yes
Wideband-Cable1/0/0:11 12 123 5/0 Yes
In the preceding example, the following information is displayed for each wideband channel:
Table 7-4 show hw-module bay config wideband-channel Output Field Description
|
|
Wideband Channel |
Wideband channel. |
BG ID |
Bonding-group ID. |
Bundle num |
Number of the virtual bundle interface where the wideband channel is a member. |
WB Host Slot/Subslot |
Cable interface line card that has been configured for Wideband protocol operations. For information, see the modular-host subslot command in the Cisco uBR10012 Universal Broadband Router SIP and SPA Software Configuration Guide . |
Primary BG |
Primary bonding group (primary wideband channel). "Yes" indicates that the wideband channel is a primary bonding group. |
To display wideband-channel statistics, use the show hw-module bay command with the counters and wideband-channel keywords.
Router# show hw-module bay 1/0/0 counters wideband-channel 0
SPA WB channel Tx packets Tx octets
To display RF channels that have been configured for a wideband channel, use the show hw-module bay command with the mapping and wideband-channel keywords. The BW% column displays the percentage of the RF channel bandwidth that is assigned to the wideband channel with the cable rf-channel command.
Router# show hw-module bay 1/0/0 mapping wideband-channel
Monitoring Narrowband RF Channels
The following commands are useful for monitoring narrowband RF channels:
show interface modular-cable and show interface integrated-cable
To display information about narrowband interfaces, use the show interface modular-cable or show interface integrated-cable command. Narrowband interfaces information is also displayed with the show ip interface and show interfaces command.
The following is sample output of the show interface modular-cable command:
Router# show interface modular-cable 1/0/0:0
Modular-Cable3/0/0:0 is up, line protocol is up
Hardware is CMTS MC interface, address is 0011.9221.84be (bia 0011.9221.84be)
MTU 1500 bytes, BW 539 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation MCNS, loopback not set
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:09:57, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: PXF First-In-First-Out
Output queue 0/64, 0 drops; input queue 0/75, 0 drops
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
107 packets output, 16302 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
You can also specify the following keywords to display more specific information you would like to display:
Table 7-5 show interface modular-cable Output Field Description
|
|
accounting |
Displays interface accounting information |
controller |
Displays interface status, configuration, and controller status. |
counters |
Displays interface counters. |
crb |
Displays interface routing and bridging information. |
description |
Displays interface description. |
dlm |
Displays DLM statistics. |
downstream |
Displays downstream information. |
fair-queue |
Displays interface Weighted Fair Queueing (WFQ) information. |
irb |
Displays interface routing and bridging information. |
mac-accounting |
Displays interface MAC accounting information. |
monitor |
Displays the interface information continuously. |
mpls-exp |
Displays interface MPLS experimental accounting information. |
multicast-gcr |
Displays multicast QoS GCR Details. |
multicast-sessions |
Displays multicast sessions information. |
precedence |
Displays interface precedence accounting information. |
random-detect |
Displays interface weighted random early detection (WRED) information. |
stats |
Displays interface packets & octets, in & out, by switching path. |
summary |
Displays interface summary. |
show hw-module bay
To display information about RF channels on a Wideband SPA, use the show hw-module bay command with the rf-channel keyword. You also have to specify one of the following keywords indicating the particular type of information you want to display:
- config— Displays RF channel configuration information.
- counters— Displays RF channel statistics.
- mapping— Displays the mapping of RF channels to wideband channels.
To display configuration information for an RF channel, use the show hw-module bay command with the config and rf-channel keywords. If you specify an RF channel number after the rf-channel keyword , output is for that channel only. For example, the following output is for RF channel 0 on the Wideband SPA located in slot/subslot/bay 1/0/0.
Router# show hw-module bay 1/0/0 config rf-channel 0
Freq Mod Anx IP Address MAC Address UDP Port/ If
1/1/0 0 555000000 256qam B 10.30.4.100 0090.f001.53eb 37721 1209
In the preceding output, these fields provide information on the edge QAM device that is associated with the RF channel:
- IP address—IP address of the edge QAM device.
- MAC address—MAC address of the next-hop or edge QAM device.
- DEPI ID or UDP port—DEPI ID or UDP port number for the edge QAM device that will be used for this RF channel.
To display MPEG packets transmitted for an RF channel, use the show hw-module bay command with the counters and rf-channel keywords.
Router# show hw-module bay 1/0/0 counters rf-channel 0
Chan Packets Tx bps Mbps Packets Tx Packets Tx
1/1/0 0 826196333 13722746 13.722 870613 521229533
show controller modular-cable and show controller integrated-cable
For the Cisco uBR-MC3GX60V and Cisco UBR-MC20X20V line card, the config , counters , and the mapping commands shown in the preceding configuration are displayed with the show controller command.
The config command displays all aspects of the configuration for the controller and its channels.
To display configuration information for an RF channel, use the show controller modular-cable rf-channel command.
The following example shows how to display the configuration information for the rf-channel 0 on the modular interface 5/0/0:
router# show controllers modular-Cable 5/0/0 rf-channel 0
Ctrl Chan Frequency Mod Annex IP Address MAC Address DEPI Remote ID
0 0 453000000 256 B 10.31.136.100 0022.9084.4e3f 101111
To display the per RF channel packet counts, bandwidth usage, SYNC, MAP, and non-SYNC and MAP packet counts use the counters rf command. This command is used to monitor channel saturation and the distribution of bandwidth in the cable plant.
For the Cisco Wideband SPA and Cisco UBR-MC20X20V line card, the channel bandwidth usage is computed based on the MPEG frames, each of which is 188 bytes.
For the Cisco uBR-MC3GX60V line card, the channel bandwidth is computed based on the DMPT (DOCSIS MPEG Transport) frames, which are a composite of MPEG frames.
The following example displays the output of the show controller modular cable counter rf command for the Cisco uBR-MC3GX60V line card:
router# show controller modular-Cable 5/0/1 counter rf
Contr RF Pkts Bytes Pkts DMPT DMPT* Sync MAP/UCD Med Pri
oller Chan Tx Tx Dropped Mbps pps Pkts Pkts Pkts
5/0/1 0 359422902 175839786632 0 16.084494 3278 17695916 348630355 131188
5/0/1 1 297919977 144703086948 0 12.776285 2464 17695915 348630335 100908
5/0/1 2 411173896 205063220844 0 19.152506 3965 17695915 348630323 121152
5/0/1 3 533449227 289471796988 0 28.142993 5570 17695914 348630315 170136
5/0/1 4 416414672 208106842144 0 19.457173 4016 17695913 349494926 122964
5/0/1 5 359411966 177779675348 0 16.280459 3274 17695913 349494918 105723
5/0/1 6 358961974 177630830860 0 16.316326 3277 17695912 349494906 105728
5/0/1 7 493909136 263091994564 0 22.212102 4431 17695910 349494858 157423
5/0/1 8 359861407 176357816120 0 16.148563 3277 17695905 349424219 106805
5/0/1 9 298273856 145360324608 0 12.855633 2467 17695904 349424215 88482
5/0/1 10 460787085 235328615916 0 22.350009 4596 17695904 349424199 143407
5/0/1 11 393417481 387085290468 0 38.185439 3677 17695903 349424191 161748
5/0/1 12 404324991 393733309244 0 38.130136 3775 17695903 327307195 109146
5/0/1 13 404351002 393679365464 0 38.128834 3772 17695902 327307183 171286
5/0/1 14 404379728 393645455340 0 38.130587 3770 17695901 327307175 129867
5/0/1 15 297584535 142519536884 0 12.589738 2460 17695901 327307163 88480
5/0/1 16 293331958 141265632720 0 12.439508 2410 17695899 292640661 88483
5/0/1 17 327924662 160476865612 0 12.441312 2409 17695898 292640655 125175
5/0/1 18 386874510 191388404840 0 15.774166 3245 17695898 292640643 143530
5/0/1 19 436449376 225386019716 0 21.717130 4352 17695897 292640629 143562
5/0/1 20 442427 83204476 0 0.003756 2 0 0 442395
5/0/1 21 442463 83199588 0 0.003756 2 0 0 442395
5/0/1 22 442462 83198836 0 0.003756 2 0 0 442395
5/0/1 23 442455 83197144 0 0.003756 2 0 0 442395
Total: 7699994148 4628246671304 0 429.328417 70493 353918123 6669989064 4284773
*Does not include DEPI control plane or DLM packets.
The following example displays the show controllers integrated-Cable counter rf command output for the Cisco UBR-MC20X20V line card:
router# show controllers integrated-Cable 7/0/0 counter rf 0
Controller RF MPEG MPEG MPEG Sync MAP/UCD
Chan Packets bps Mbps Packets Packets
The mapping command shows the relationship between RF channels and wideband channels. A wideband channel is always built from one or more RF channels.
The following example shows that the rf-channel 0 is used in both a 4-channel and a 8-channel wideband channel, specifically wideband channel 5/0/0:1 and 5/0/0:2:
router# show controllers modular-Cable 5/0/0 mapping rf-channel 0
Ctrlr RF MC MC Rem. WB WB WB Rem.
channel BW % Ratio channel BW % Ratio
router# show controllers modular-Cable 5/0/0 mapping wb 1
Ctrlr WB RF BW % Remaining
router # show controllers modular-Cable 5/0/0 mapping wb 2
Ctrlr WB RF BW % Remaining
Monitoring Voice Services
The show cable service-voice downstream -type command is useful for monitoring voice services:
Router# show cable service-voice downstream-type
Slot 5/1 : HA-capable-DS MDC-DS
Slot 6/0 : HA-capable-DS MDC-DS
The output shown above indicates that both, HA-capable-DS and MDC-DS are enabled for voice services for slot/subslots 5/1 and 6/0 .
Monitoring Narrowband and Wideband Cable Modems
The following commands are useful for monitoring wideband cable modems:
Many other show cable commands display information on wideband cable modems if a wideband cable modem or a cable interface used for a wideband cable modem is specified in the command’s arguments. Some examples of these commands are:
- show cable modem vendor
- show cable modem cnr
- show cable modem errors
- show cable modulation profile
- show interface cable privacy
show cable modem wideband
To display information for registered and unregistered wideband cable modems, use the show cable modem wideband command:
Router# show cable modem wideband
MAC Address IP Address I/F MAC Prim RCC MD-DS-SG/
0019.474a.c2a6 50.3.81.31 C5/0/5/U0 w-online(pt) 6 3 1 / N/A
0018.6852.82fe 50.3.81.64 C5/0/8/U0 w-online(pt) 1 3 1 / N/A
0019.474a.d4e0 50.3.81.57 C5/0/8/U0 w-online(pt) 2 3 1 / N/A
0019.474a.d310 50.3.81.56 C5/0/8/U0 w-online(pt) 3 3 1 / N/A
With the show cable modem wideband command, you can specify a particular wideband cable modem by IP address or MAC address. You can also specify a set of wideband cable modems that are on a particular cable interface.
Table 7-6 describes the fields that are shown in the show cable modem wideband display.
Table 7-6 show cable modem wideband Field Description
|
|
MAC Address |
MAC address of the cable modem. |
IP Address |
IP address that the DHCP server has assigned to the cable modem. |
I/F |
Cable interface providing the upstream for this cable modem. |
MAC State |
Current state of the MAC layer. For information on MAC states, see the show cable modem wideband command in the Cisco Broadband Cable Command Reference Guide . |
Prim SID |
Primary SID assigned to this cable modem. |
RCC ID |
Receive Channel Configuration identifier of the modem. Further information on the RCC can be shown with the show cable mac-domain <interface> rcc command. |
MD-DS-SG |
MAC domain downstream service group. The downstream channels of a single MAC domain that reach the cable modem. |
MD-US-SG |
MAC domain upstream service group. The upstream channels of a single MAC domain that reach the cable modem. |
Further information about a particular modem may be obtained using the show cable modem verbose command.
Registered-traditional Subcommand
To monitor wideband-capable modems that are registered as DOCSIS 1.x or DOCSIS 2.0 modems and are not showing up with status w-online, use the show cable modem wideband registered-traditional-docsis command.
show cable modem summary
To display the summary information of the cable modems, including modems registered as wideband cable modems, use the show cable modem summary command:
Router# show cable modem summary
Interface Cable Modem Description
Total Reg Oper Unreg Offline Wideband initRC initD initIO initO
C5/0/1/U0 11 11 11 0 0 0 0 0 0 0
C6/0/1/U0 11 11 11 0 0 0 0 0 0 0
The following example displays summary information and totals for the set of cable modems on a range of cable interfaces (in this example, cable 5/1/1 to cable 5/1/2).
Router# show cable modem summary c5/1/1 c5/1/2 total
Interface Cable Modem Description
Total Reg Unreg Offline Wideband initRC initD initIO initO
C5/1/1/U0 84 84 0 0 84 0 0 0 0
C5/1/1/U1 84 84 0 0 83 0 0 0 0
C5/1/1/U2 83 83 0 0 83 0 0 0 0
C5/1/1/U3 83 83 0 0 83 0 0 0 0
C5/1/2/U0 84 84 0 0 84 0 0 0 0
C5/1/2/U1 84 84 0 0 84 0 0 0 0
C5/1/2/U2 83 83 0 0 83 0 0 0 0
C5/1/2/U3 83 83 0 0 83 0 0 0 0
Total: 668 668 0 0 667 0 0 0 0
show cable modem primary
To display which primary channel the modem is using, use the show cable modem primary command:
Router# show cable modem primary
MAC Address IP Address Host MAC Prim Num Primary DS
Interface State Sid CPE Downstream RfId
0018.6852.7f02 80.27.0.10 C8/0/0/U0 w-online 1 0 Mo1/1/0:4 28
0018.6852.7ee2 80.27.0.2 C8/0/0/U1 online 2 0 C8/0/0 255
0018.6852.7ef8 80.27.0.6 C8/0/0/U0 w-online 6 0 Mo1/1/0:4 28
0018.6852.7ef2 80.27.0.7 C8/0/0/U1 w-online 7 0 Mo1/1/0:1 25
0018.6852.7ef6 80.27.0.8 C8/0/0/U1 w-online 8 0 Mo1/1/0:1 25
show cable modem primary-channel
To display the primary-channel and host interface for all modems or for modems on a MAC domain host interface, use the show cable modem primary-channel command:
Router# show cable modem primary-channel non-bonding-capable
MAC Address IP Address Host MAC Prim Num Primary DS
Interface State Sid CPE Downstream RfId
000f.66f9.aa73 80.17.1.3 C6/0/0/U0 online(pt) 1 0 C6/0/0 255
0007.0e02.d7e9 80.17.1.7 C6/0/0/U0 online(pt) 5 0 Mo3/0/0:1 1
0013.10bb.22f9 80.17.1.2 C6/0/0/U0 online(pt) 2 0 Mo3/0/0:1 1
000f.66f9.b193 80.17.1.6 C6/0/0/U0 online(pt) 22 0 C6/0/0 255
0012.17ea.f3fb 80.17.1.4 C6/0/0/U0 online(pt) 23 0 C6/0/0 255
0013.10bb.23d1 80.17.1.5 C6/0/1/U1 online(pt) 5 0 C6/0/1 255
show cable modem voice
To show the detected voice-enabled modems, use the show cable modem voice command:
Router# show cable modem voice
MAC Address IP Address Host MAC Prim Num Primary DS
Interface State Sid CPE Downstream RfId
0013.10bb.22f9 80.17.1.2 C6/0/0/U0 online(pt) 2 0 Mo3/0/0:1 1
0013.10bb.23d1 80.17.1.5 C6/0/1/U1 online(pt) 5 0 C6/0/1 255
Monitoring Cable MAC Domains
The following commands are useful for monitoring the cable MAC domains:
show cable mac-domain downstream-service-group
To display MAC domain downstream service group information for a primary downstream channel, use the show cable mac-domain downstream-service-group command. The service-group is determined from the channels placed in the fiber nodes; therefore, if fiber nodes are being reconfigured, use this command to check if the downstream service-group is updated.
The following example displays show cable mac-domain downstream-service-group output for the primary downstream channel on the cable interface at slot/subslot/port 5/0/0:
Router# show cable mac-domain cable5/0/0 downstream-service-group
In the preceding example, the MD-DS-SG with ID 1 is used for RF channels 0 and 1 on the Wideband SPA located in slot/subslot/bay 1/0/0.
The following example displays the show cable mac-domain downstream-service-group output of two 8-channel downstream service groups for a Cisco uBR-MC3GX60V MAC domain.
router# show cable mac-domain ca6/0/0 downstream-service-group
IF Id Resource Chan Primary Chan
C6/0/0 1 6/0/0 00-03 0 1 2 3
show cable mac-domain cgd-associations
To display a summary of the channel grouping domain (CGD) associations for a MAC domain, use the show cable mac-domain <interface> cgd-associations command.
The following is sample output of the show cable mac-domain cgd-associations command for the cable interface at slot 5, subslot 0, and port 0:
Router# show cable mac-domain c5/0/0 cgd-associations
CGD Host SPA DS Channels Upstreams (All) Active Remote DS
The preceding example shows the following information for the cable MAC domain host, which is the cable interface at slot 5, subslot 0, and port 0:
- The SPA downstream channels 0 and 1 from the SPA slot 1, subslot 0, and bay 0 have been added to this MAC domain.
Upstream 1 is associated with the Cisco uBR10-MC5X20 downstream channel. If the All column in the command output indicates Y , then this indicates that all upstream channels are associated with the Cisco uBR10-MC5x20 line card downstream channels (in this case, one or more SPA downstream channels are configured using the upstream cable connector command). If all upstream channels are not configured, then this column will not display.
Troubleshooting Wideband Components
This section provides an introduction to troubleshooting the wideband components of the Cisco DOCSIS 3.0 Downstream Solution:
The following Cisco cable documents provide useful information on troubleshooting the non-wideband components of the Cisco uBR10012 router:
- Cisco uBR10012 Universal Broadband Router Troubleshooting Guide
- “Troubleshooting the System” chapter in the Cisco uBR10012 Universal Broadband Router Software Configuration Guide
- Online Offline Diagnostics—Field Diagnostics on Cisco uBR10012 Router User’s Guide
For information on troubleshooting non-Cisco components (such as edge QAM devices) used in the Cisco DOCSIS 3.0 Downstream Solution, see the vendor documentation for the device.
NoteComplex troubleshooting procedures are beyond the scope of this document and may involved Cisco TAC or Advanced Services support, or both.
The following are basic the troubleshooting steps to get wideband modems w-online and their CPEs pingable:
1. Line card is powered on.
2. For M-CMTS, DTI timing is functioning.
3. For M-CMTS, Gigabit Ethernet ports are up.
4. For M-CMTS, EQAM ping.
5. Controller configuration is complete.
6. Primary-capable state of the MC or IC interfaces.
7. Fiber-node configuration is complete, fiber-node status valid.
8. MAC domain configuration is complete.
9. MC interface or IC interface status is up.
10. RF channel bandwidth usage for the primary channels.
11. No RF impairment on non-primary channels.
All these troubleshooting procedures are discussed in detail in the rest of the chapter.
Troubleshooting Power Up Issues
This section describes troubleshooting techniques for a Wideband SIP or Wideband SPA. It includes the following sections:
Performing Basic Power Troubleshooting on a Wideband SIP and Wideband SPA
To perform basic troubleshooting on a Wideband SIP and Wideband SPA, complete the following steps:
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|
More Information or Example
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Step 1 |
Use the show diag command to check that a Wideband SIP is powered on. |
Card uptime 0 days, 0 hours, 3 minutes, 17 seconds
If show diag displays output, the Wideband SIP is powered on. If show diag displays no output, the Wideband SIP is not powered on. |
Step 2 |
Check that the Wideband SIP FAIL LED is not on. |
The FAIL LED is turned on by default and turned off by software after basic board functionality has been verified. If the SIP FAIL LED remains on, the SIP has failed to initialize or has encountered an error.
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Step 3 |
Use the show hw-module bay oir command to check that a Wideband SPA is powered on. |
Router#
show hw-module bay 1/0/0 oir
Module Model Operational Status
------------- -------------------- ------------------------
bay 1/0/0 SPA-24XDS-SFP ok
- If the Operational Status is “ok,” the Wideband SPA is powered on and operational.
- If the Operational Status is “admin down,” the Wideband SPA is not powered on.
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Step 4 |
Check that the Wideband SPA STATUS LED is lit green. |
- If the STATUS LED is green, the SPA is ready and operational.
- If the STATUS LED is amber, SPA power is on and good, and the SPA is being configured.
- If the STATUS LED is off, SPA power is off.
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Step 5 |
If cables are connected to one or both of the SPA Gigabit Ethernet port SFP modules and the links for these should be up, check that the Wideband SPA A/L (Active Loopback) LEDs are lit green. |
- If the A/L LED is green, the port is enabled and the link is up.
- If the A/L LED is amber, the port is enabled and the link is down.
- If the A/L LED is off, the port is not enabled.
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Performing Basic Power Troubleshooting on the Cisco uBR-MC3GX60V Line Card
To perform the basic power troubleshooting on a Cisco uBR-MC3GX60V line card, execute the show diag command on the subslot, the card is plugged into. If no output is displayed, then the card is not powered on.
Check for the following, in case the card is not powered on:
- Card has been inserted correctly and is screwed in.
- There are no extraneous subslot shutdown commands in the configuration preventing the card from booting up. To perform this, execute the show running | include hw-mod.*shutdown command.
If the show diag command does not display any output and the card is not powered off by configuration, physically examine the card faceplate and check the Fail LED status. If it is on, then the line card is not booting correctly.
NoteWhen using a Cisco uBR-MC3GX60V line card, the empty slots in the Cisco uBR10012 router chassis must be filled with blank filler cards to maximize the air flow and keep the line cards functioning within proper thermal boundaries.
Troubleshooting DOCSIS Timing and Control Card
This section describes troubleshooting techniques for the DOCSIS Timing and Control Card (DTCC). It includes the following sections:
Verifying Active DTCC and Status
For the M-CMTS network architecture, DTI-based timing must be enabled using the cable clock dti command in global config mode. If DTI timing does not functioning correctly, cable modems do not reach the init() state.
To determine the active DTCC and its current status, use the show cable clock command:
Number of TCC Cards in the Chassis: 1
Active TCC Card is in slot: 1 subslot: 1,(DTCC Eightbells card) Clock reference used by the active card is DTI
Active TCC card in slot 1/1
-------------------------------------------
Active Client status : normal
Active Client Server status : freerun
Active Client frame error rate : < 2%
Active Client CRC error count : 0xFC
Standby Client Signal detected : no
If the Cisco uBR10012 chassis has two DTCCs, this command can be used to determine which DTCC is active. If the DTI client has established communications with a DTI server, the show cable clock command displays the current status. If the active DTCC is connected to a DTI server that is delivering a DOCSIS time stamp and frequency, the Active Client status displays as normal. However, if the connection to the DTI server is lost, the Active Client status displays as freerun (see previous example).
NoteWhen a DTI server is first powered on, it may stay in the warmup state until its internal oscillator has stabilized. This may take more than 15 minutes.
Verifying DTI Counters
To display the DTI counters for the clock card, use the show cable clock dti counters slot/subslot command.
The following example displays the show cable clock dti counters slot/subslot command output for slot 1 and subslot 1:
Router> show cable clock dti counters 1/1
TCC Card 1/1 DTI counters:
------------------------------------------- Client Normal time : 0xFFFF Client Holdover time : 0x0000
Client Phase Correction : 0x0000
Client Freq Correction : 0xFBD7
Client EFC Correction : 0xF7AD Client transition count t3 : 0x00
Client transition count t4 : 0x01
Client transition count t6 : 0x00
Client transition count t7 : 0x00
Verifying DTI Clock Synchronization
Three main components in the M-CMTS system need to have a synchronized DOCSIS clock:
1. CMTS DTCC card
2. CMTS cable line card, and
3. EQAM
To verify the CMTS timing at the DTCC and MAC domain card, enter the following three commands in rapid succession:
- show cable clock dti client 1/1 | i Timestamp
- show controller Cable5/0/0 | i Timestamp
- On the CISCO RFGW10 EQAM, execute the show cable clock | i timestamp command.
NoteThe Harmonic NSG EQAM has a GUI screen that can display the clock.
The timestamps shown will not match exactly due to the 10 MHz rate of the clock, but the three timestamps should be close. If the timestamps are not close, verify the following:
- DTI wiring from the DTI server to the CMTS DTCC card
- DTI wiring from the DTI server to the EQAM
- Proper configuration of the three devices. The CMTS must be configured with the cable clock dti command.
The following example verifies the CMTS timing at the DTCC and MAC domain card:
Router> show cable clock dti client 1/1 | i stamp
Client timestamp : 0x38683C64
Router> show contr ca5/0/0 | i stamp
Timestamp is from TCC card
Master Clock Timestamp = 0x3B0E1F89
RFGW-10# show cable clock | i stamp
Client timestamp : 0x3C4F02FA
Troubleshooting EQAM Connectivity Issues of the M-CMTS
This section describes troubleshooting techniques for EQAM connectivity to the M-CMTS. It includes the following sections:
Verifying the Up State of an Active Gigabit Ethernet Port of a Wideband SPA
The Gigabit Ethernet ports on a Wideband SPA are not considered standard user-configurable interfaces; However, they appear in the configuration (since Cisco IOS Release 12.2[33]SCC) because the DEPI protocol transmits and receives control packets by using this interface. The Wideband SPA is a controller with one active and one redundant Gigabit Ethernet port. The show controller modular-cable command displays information about the SPA, its Gigabit Ethernet active port, installed small form-factor pluggable (SFP) modules, and so on.
The following example provides sample show controller modular-cable output for the Wideband SPA located in slot 1, subslot 0, bay 0 of a Cisco uBR10012 router.
Router# show controller modular-cable 1/0/0 brief
Host 12V is enabled and is okay.
Power has been enabled to the SPA.
SPA reports power enabled and okay.
SPA reports it is okay and is NOT held in reset.
Gigabit Ethernet Port Selected : Port 1
Receive Interface : In Reset
Receive Interface : Disabled
Transmit Interface : Out of Reset
Transmit Interface : Enabled
Primary Receive Clock : Disabled
Backup Receive Clock : Disabled
SFP [Port 0] : 1000BASE-SX Present
Tx Enabled , LOS Detected , TxFault Not Detected
Link Status [Port 0] : DOWN
SFP [Port 1] : 1000BASE-T Present
Tx Enabled , LOS Not Detected , TxFault Not Detected
Link Status [Port 1] : UP
In the preceding output, notice the following:
- The Gigabit Ethernet Port Selected field indicates the active Gigabit Ethernet port.
- For the active Gigabit Ethernet port, the SFP [Port 1] field indicates the type of SFP module that is present.
- For the active Gigabit Ethernet port, the Link Status [Port 1] field indicates whether the link is up.
The Cisco Wideband SPA transmits data in a unidirectional manner only and does not receive data from devices connected to its active Gigabit Ethernet port.
If the link for the active Gigabit Ethernet port is not up, check the following:
Use the show controller modular-cable command with the sfp keyword to get more detailed information on the SFP modules installed in the Wideband SPA Gigabit Ethernet ports.
Verifying the Up State of an Active Gigabit Ethernet Port of a Cisco uBR-MC3GX60V Line Card
The Cisco uBR-MC3GX60V line card can have up to six SFPs for its three controllers. To check the presence and link status of the SFPs, use the show controller modular-cable <slot/subslot/controller> sfp command.
If the SFP is not present, the show controller modular-cable <slot/subslot/controller> sfp command output displays:
Router# show controller modular-cable 6/0/0 sfp
SFP in Port1 is NOT PRESENT
If the SFP is present, confirm if the physical port status is Up in the show controller modular-cable <slot/subslot/controller> sfp command output:
Router# show controller modular-cable 6/0/0 sfp
SFP in Port0 is Present. Init status Success
TX_DISABLE not set, LOS not detected, TX_FAULT not detected
LOS detection supported: no
Tx Fault detection supported: no
LOS:0, PRES:0, TX_FAULT:0
Link Status of the MV88E1146C DS Gige Phy Port: UP <<<——— Physical port status is up
Verifying Layer 3 Connectivity to the EQAM
As of Cisco IOS Release 12.2(33)SCC, DEPI control plane functionality requiring bidirectional communication between the CMTS and the EQAM has been supported. This communication requires a Gigabit Ethernet interface visible to the IOS and hence visible with the show ip interfaces brief command.
NoteOnly a very small fraction of the Gigabit Ethernet interface bandwidth is actually used by the DEPI protocol.
Both the Wideband SPA and the Cisco uBR-MC3GX60V line card have one Gigabit Ethernet interface per controller, therefore a Wideband SPA has one such interface and a Cisco uBR-MC3GX60V line card has three interfaces.
With an IP address is configured on the interface in a subnet, that includes the EQAM, the IP address of the EQAM is pingable. This provides a basic verification method of the bidirectional communication between the CMTS and the EQAM.
The following example shows the ping command output of an EQAM from the CMTS through the Gigabit Ethernet port of controller 0 of a Cisco uBR-MC3GX60V line card:
interface GigabitEthernet5/0/0
ip address 10.31.136.215 255.255.255.0
router# show running-config | begin ontroll.*5/0/0
controller Modular-Cable 5/0/0
rf-channel 0 cable downstream channel-id 1
rf-channel 0 frequency 453000000 annex B modulation 256qam interleave 32
rf-channel 0 ip-address 10.31.136.100 mac-address 0022.9084.4e3f depi-remote-id 101111
router# ping 10.31.136.100
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.31.136.100, timeout is 2 seconds:
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/9/12 ms
Troubleshooting Primary-Capable Channel DOCSIS Signalling
This section describes troubleshooting techniques for the Primary-capable Channel DOCSIS Signalling. It includes the following sections:
Verifying MAP, UCD, SYNCs for Primary-Capable Channels
All primary-capable channels of a MAC domain transmit MAPs, UCDs, SYNCs packets downstream. In the case of DOCSIS 3.0 deployments, MDD is also transmitted.
For the MAC domain to transmit the packets, the associated modular-cable or integrated-cable interface must have UP status as shown in the show ip interfaces command output. If the interface is not up, verify the following:
1. The interface has been configured with the cable rf-bandwidth-percent command to have at least 1 percent of bandwidth.
2. The interface has been unshut.
3. The controller parameters are configured. This includes frequency, annex, modulation type, and interleaver.
4. The CGD configuration has been done in the MAC domain interface using the downstream Modular-cable or downstream integrated-cable command. Multiple configuration lines for primary channels may be used.
5. For modular-cable interfaces, the Gigabit Ethernet SFP is in the UP state (see Verifying the Up State of an Active Gigabit Ethernet Port of a Cisco uBR-MC3GX60V Line Card)
When the modular-cable or integrated cable interface is up, verify that at least one upstream in the MAC domain is up with the show interface <mac domain interface> upstream command.
After the upstream is UP, verify if the MAPs, SYNCs, and UCDs are being transmitted. This can be done at 2 layers:
1. At the MAC domain layer, use the show controller command. Execute the show controllers <MAC domain> upstream <upst ream number> | begin Map Counts command and verify the output to determine if the Map Counts counter is incrementing.
2. At the hardware layer, use the show controller <modular-cable | integrated-cable> <slot/subslot/controller> counters rf command. Verify the output to determine if the MAP Pkts counter is incrementing. Verify if the SYNC Pkts counter is incrementing. Without any Layer 3 traffic, the Mbps rate for one upstream channel is approximately 0.9 to 1.0 Mbps. The Mbps rate for four upstreams is approximately 1.7 to 1.9 Mbps.
Verifying MDD Packet Transmit for DOCSIS 3.0 Operations
To support downstream and upstream bonding, the fiber node or fiber nodes in use by a MAC domain must be properly configured. The fiber node is used to calculate the correct downstream service groups and upstream service group IDs placed in the MDD packets. The fiber node configuration includes specifying the downstream channels and the upstream connector in use. The downstream channels must not have frequency or downstream channel ID conflicts.
The following example shows an invalid fiber node:
router# show running | begin fiber.*224
downstream Modular-Cable 5/0/2 rf-channel 8-11 20-23
router# show cable fiber 224
---------------------------------------------------------------------------------
Channel(s) : downstream Modular-Cable 5/0/2: 8-11 20-23
Channel ID(s): 57, 58, 59, 60, 69, 70, 71, 72
FN Config Status: Configured (status flags = 0x41)
No US Connector Configured
Use the show controller <MAC domain> | begin MDD command to check the number of MDD packets being transmitted. The following example shows that no MDD packets are transmitted:
router# show contr ca5/0/12 | beg MDD
----------------------------------------------
----------------------------------------------
Use the show cable mac-domain <MAC domain> downstream-service-group command to examine the downstream service groups for the MAC domain. The following example shows that there is no service group configured since the fiber node is invalid.
router# show cable mac-domain ca5/0/12 downstream-service-group
IF Id Resource Chan Primary Chan
Completing the fiber node configuration with an upstream connector resolves the service group, which in turn allows the MAC domain to transmit MDD packets. The following example shows the above debug commands after a connector is configured in the fiber node causing it to be valid which in turn causes the service groups to be calculated and MDD packets to be transmitted and counted in the controller.
Enter configuration commands, one per line. End with CNTL/Z.
router(config)#cable fiber 224
router(config-fiber-node)# upstream cable 5/0 connector 12
router(config-fiber-node)# end
router# show run | begin fiber.*224
downstream Modular-Cable 5/0/2 rf-channel 8-11 20-23
upstream Cable 5/0 connector 12
router# show cable fiber 224
---------------------------------------------------------------------------------
Channel(s) : downstream Modular-Cable 5/0/2: 8-11 20-23
Channel ID(s): 57, 58, 59, 60, 69, 70, 71, 72
FN Config Status: Configured (status flags = 0x01)
router# show cable mac-domain ca5/0/12 downstream-service-group
IF Id Resource Chan Primary Chan
C5/0/12 1 5/0/2 08-11 8 9 10 11
router# show controllers ca5/0/12 | begin MDD
----------------------------------------------
----------------------------------------------
Troubleshooting Wideband SIP and Wideband SPAs
Verifying That a Wideband SPA Is Correctly Configured for SPA-to-EQAM Communications
If a Wideband SPA is unable to communicate with an edge QAM device, check that the RF channels configured with the rf-channel command match the values required by the edge QAM device. You can use the show hw-module bay command to see the values that have been configured for an RF channel:
Router# show hw-module bay 1/0/0 config rf-channel 0 verbose
SPA : Wideband-Cable 1/0/0
IP address of next hop : 192.168.200.30
MAC address of EQAM : 000c.3033.2cbf
Check that the following values are correct and match what is configured on the edge QAM device:
- Frequency—Center frequency used for this RF channel.
- IP address of next hop—IP address of the edge QAM device for this RF channel.
- MAC address—MAC address of the next-hop or edge QAM device for this RF channel.
- DEPI Remote ID—DEPI ID of the RF channel on the EQAM. The DEPI ID is seen with the non-verbose form of this command.
- UDP port—UDP port number for the QAM output port for this RF channel.
If any of the above values do not match what is present on the edge QAM device, the Wideband SPA will not be able to successfully communicate with that device.
On the Cisco uBR10012 router, RF channels are configured with the rf-channel command. The values on the edge QAM are device-specific and are typically configured when setting up the edge QAM device.
Verifying That a Wideband SPA Is Able to Communicate with the Edge QAM Device
To verify that a Wideband SPA that has been correctly configured for wideband operations is communicating with the edge QAM device, use the show hw-module bay command with the counters and rf-channel keywords. In the following example, only RF channels 0 to 3 on the Wideband SPA are transmitting MPEG packets.
Router# show hw-module bay 1/0/0 counters rf-channel
SPA RF channel MPEG packets tx Sync Tx MP Pkts Tx
1/0/0 0 109382989 18858822 90121503
1/0/0 1 109314434 18858822 90121203
Troubleshooting Wideband Channels
This section describes troubleshooting techniques for wideband channels. It includes the following sections:
For information about configuring wideband channels, see the Cisco uBR10012 Universal Broadband Router SIP and SPA Software Configuration Guide .
Verifying That a Wideband Channel Is Up and Is Transmitting Packets
To verify that a wideband channel is up and transmitting packets, use the show interface wideband-cable command and examine the first line of the output and the packets output field:
Router# show interface wideband-cable 1/0/0:1
Wideband-Cable1/0/0:1 is up, line protocol is up
Hardware is Wideband CMTS Cable interface, address is 0012.001a.8897 (bia 0012.001a.8897)
MTU 1500 bytes, BW 74730 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation MCNS, loopback not set
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:09, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Output queue: 0/40 (size/max)
30 second input rate 0 bits/sec, 0 packets/sec
30 second output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
24224 packets output, 1222002 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
For information on what criteria are used to determine whether a wideband channel and its associated line protocol are up, see the “show interface wideband-cable” section.
Verifying That a Wideband Channel Is Configured Correctly
To verify whether a wideband channel is configured correctly, use the show hw-module bay command with the wideband-channel keyword and the association , config , or mapping keywords. The following examples show the output for the association keyword:
Router# show hw-module bay 1/0/0 association wideband-channel 0
WB BG Bundle NB NB chan Reserved Avail
channel ID num channel ID CIR CIR
Wideband-Cable1/0/0:0 24 123 Cable5/0/1 120 0 0
In the preceding output, the Bundle num field indicates the virtual bundle interface to which the wideband channel belongs. For a description of each field in the preceding output, see the “show hw-module bay and show controller” section.
The wideband channel and the primary downstream channel (NB channel) must be members of the same virtual bundle interface. The CMTS running configuration file shows the virtual bundle (cable bundle) for the primary downstream channel (Cable5/0/1):
cable downstream channel-id 120
The downstream modular-cable rf-channel command specifies the RF channels that are available for wideband channels on a fiber node. If a wideband channel attempts to use an RF channel that has not been made available for use on the fiber node, a misconfiguration error occurs. In this case, the show hw-module bay command displays the following error message:
Router# show hw-module bay 1/0/0 association wideband-channel
WB BG Bundle NB NB chan Reserved Avail
channel ID num channel ID CIR CIR
Wideband-Cable1/0/0:0 RF channel mismatch with Fiber Node 1
The following example shows the show hw-module bay command output for the config keyword:
Router# show hw-module bay 1/0/0 config wideband-channel
WB BG Bundle WB Host Primary
channel ID num Slot/Subslot BG
Wideband-Cable1/0/0:0 24 123 5/0 Yes
Wideband-Cable1/0/0:1 25 123 5/0 Yes
Wideband-Cable1/0/0:2 26 123 5/0 Yes
Wideband-Cable1/0/0:3 27 123 5/0 Yes
Wideband-Cable1/0/0:4 28 123 5/0 Yes
Wideband-Cable1/0/0:5 29 123 5/0 Yes
Wideband-Cable1/0/0:6 30 123 5/0 Yes
Wideband-Cable1/0/0:7 31 123 5/0 Yes
Wideband-Cable1/0/0:8 32 0 5/0 Yes
Wideband-Cable1/0/0:9 33 0 5/0 Yes
Wideband-Cable1/0/0:10 34 0 5/0 Yes
Wideband-Cable1/0/0:11 35 0 5/0 Yes
In the preceding output, each wideband channel that is used should be configured as a member of a virtual bundle interface. Channels 8 through 11 are not members of a virtual bundle interface.
The following example shows the show hw-module bay command output for the mapping keyword:
Router# show hw-module bay 1/0/0 mapping wideband-channel
A channel-bonded wideband channel is associated with at least two RF channels depending on the wideband channel configuration. The cable rf-channel command associates an RF channel with a wideband channel. The bandwidth percent (BW %) of each RF channel used for the wideband channel is 100 percent by default, but is configurable with the cable rf-channel command.
Troubleshooting Wideband Cable Modems
This section describes troubleshooting techniques for wideband cable modems. It includes the following sections:
Pinging a Wideband Cable Modem
To determine whether a wideband cable modem or any DOCSIS cable CPE device is reachable from the CMTS at the DOCSIS MAC layer, use the ping docsis command with either a MAC address or IP address:
Router# ping docsis 1.11.0.5
Queueing 5 MAC-layer station maintenance intervals, timeout is 25 msec:
Success rate is 100 percent (5/5)
The ping docsis command uses 1/64—the bandwidth of IP ping—and works with cable modems that have not yet acquired an IP address. This allows you to ping cable modems that are unable to complete registration, that have internal bugs, or that are unresponsive due to a crash.
The ping docsis command with the verbose keyword includes a real-time view and plot of requested power adjustments, frequency, timing offset adjustments, and a measure of optimal headend reception power.
Router# ping docsis 1.11.0.5 verbose
Queueing 5 MAC-layer station maintenance intervals, timeout is 25 msec:
Reply from 0014.bfbe.3e3c: 46 ms, tadj=1, padj=0, fadj=34
Reply from 0014.bfbe.3e3c: 46 ms, tadj=0, padj=0, fadj=26
Reply from 0014.bfbe.3e3c: 50 ms, tadj=0, padj=0, fadj=29
Reply from 0014.bfbe.3e3c: 50 ms, tadj=1, padj=0, fadj=29
Reply from 0014.bfbe.3e3c: 50 ms, tadj=-1, padj=0, fadj=39
Success rate is 100 percent (5/5)
For more information on the ping docsis command, see the Cisco Broadband Cable Command Reference Guide .
Verifying That a Wideband-Capable Cable Modem Is Registered as a Wideband Modem
To verify that a wideband-capable cable modem is registered as a wideband modem, use the show cable modem command. In the following example, the MAC address of the wideband cable modem is specified:
Router# show cable modem 0014.bfbe.3e70
MAC Address IP Address I/F MAC Prim RxPwr Timing Num BPI
State Sid (dBmv) Offset CPE Enb
0014.bfbe.3e70 1.11.0.3 C5/0/1/U0 w-online(pt) 1 0.00 1231 0 Y
If a wideband-capable cable modem is registered as a wideband modem, the MAC State field will have one of the w-online values (wideband-online), such as w-online(pt) in the preceding example. For descriptions of the complete set of MAC state values, see the show cable modem command in the Cisco Broadband Cable Command Reference Guide.
A wideband-capable modem may also register as a DOCSIS 2.0 modem (for example, if a wideband channel is not available). In this case, the MAC State field displayed by the show cable modem command will not have one of the w-online values.
To determine the set of wideband-capable cable modems that have registered as wideband modems on the CMTS, use the show cable modem wideband command:
Router# show cable modem wideband
MAC Address IP Address I/F MAC Prim BG DSID MD-DS-SG
0014.bfbe.3e70 1.11.0.3 C5/0/1/U0 w-online(pt) 1 24 24 N/A
0014.bfbe.3e3c 1.11.0.4 C5/0/1/U0 w-online(pt) 2 24 24 N/A
0016.92fb.5742 1.11.0.6 C5/0/1/U0 w-online(pt) 3 24 256 1
0016.92fb.580e 1.11.0.7 C5/0/1/U0 w-online(pt) 4 24 264 1
0014.bfbe.3eaa 1.11.0.2 C6/0/1/U0 w-online(pt) 7 36 36 N/A
0016.92fb.57f8 1.11.0.5 C6/0/1/U0 w-online(pt) 8 36 298 1
0016.92fb.57f4 1.11.0.8 C6/0/1/U0 w-online(pt) 9 36 306 1
To determine the set of wideband-capable cable modems that have registered as DOCSIS 2.0 modems on the CMTS, use the show cable modem wideband command with the registered-traditional-docsis keyword.
Examining Wideband-Capable Modems That are Partial Online
A fault in one or more channels in the CMTS or cable plant may result in a wideband modem being partial online. DOCSIS 3.0 includes signaling based on the CM-STATUS message that enables modems to inform the CMTS about downstream failures. The CMTS will track and react upon these messages. The CMTS may disable an RF channel in a wideband channel, causing the modems to go into partial online mode, p-online. The show cable modem partial command can used to view all modems in the p-online state.
To determine the cause of the partial online status, use the show cable modem <address> wideband rcs-status command for a modem in p-online mode. Failures reported by the modem will be counted categorically. For example:
Router # show cable modem 50.3.81.80 wideband rcs-status
The type of error reported can then be used to further troubleshoot the problem on the CMTS, the EQAM or the cable plant.
Verifying Other Information for Wideband Cable Modems
To verify other information related to wideband cable modems, use the show commands that display information relevant to all cable modems:
- show cable modem access-group —Displays information about the access group for each cable modem.
- show cable modem classifiers —Displays information about the classifiers used for each cable modem.
- show cable modem cnr —Displays carrier-to-noise ratio (CNR) information for cable modems that are using cable interface line cards with hardware spectrum-management capabilities.
- show cable modem connectivity —Displays connectivity information for each cable modem.
- show cable modem counters —Displays traffic counters for each cable modem.
- show cable modem cpe —Displays information about the CPE devices using each cable modem.
- show cable modem errors—Displays packet error information for each cable modem.
- show cable modem flap —Displays flap-list information for each cable modem.
- show cable modem mac —Displays MAC-layer information for each cable modem.
- show cable modem maintenance —Displays information about the Station Maintenance errors for each cable modem.
- show cable modem offline —Lists the offline cable modems.
- show cable modem phy —Displays the PHY layer information for each cable modem.
- show cable modem qos —Displays the quality of service (QoS) information for each cable modem.
- show cable modem registered —Lists the registered cable modems.
- show cable modem remote-query —Displays information collected by the remote-query feature.
- show cable modem rogue —Displays a list of cable modems that have been marked, locked, or rejected because they failed the dynamic shared-secret authentication checks.
- show cable modem summary —Displays summary information about the cable modems on each cable interface.
- show cable modem unregistered —Lists the unregistered cable modems.
- show cable modem vendor —Displays vendor names and identifies each cable modem.
For information on these commands, see the Cisco Broadband Cable Command Reference Guide.