Cisco Cable Wideband Solution Design and Implementation Guide, Release 1.0 - For Cisco IOS Release 12.3(21)BC, 12.3(21a)BC3, and Later 12.3(21x)BC Releases - Monitoring and Troubleshooting Wideband Components [Cisco uBR10000 Series Universal Broadband Routers]

Table Of Contents

Monitoring and Troubleshooting Wideband Components

Monitoring Wideband Components

Monitoring Wideband SIPs

show diag

Monitoring Wideband SPAs

show hw-module bay oir

show diag

show controllers modular-cable

Monitoring Wideband Channels

show interface wideband-cable

show hw-module bay

Monitoring RF Channels

show hw-module bay

Monitoring Wideband Cable Modems

show cable modem wideband

show cable modem summary

Troubleshooting Wideband Components

Troubleshooting Wideband SIPs and Wideband SPAs

Performing Basic Troubleshooting on a Wideband SIP and Wideband SPA

Verifying That a Wideband SPA's Active Gigabit Ethernet Port Is Up

Verifying That a Wideband SPA Is Correctly Configured for SPA-to-EQAM Communications

Verifying That a Wideband SPA Is Able to Communicate with the Edge QAM Device

Troubleshooting Wideband Channels

Verifying That a Wideband Channel is Up and Is Transmitting Packets

Verifying That a Wideband Channel is Configured Correctly

Troubleshooting Wideband Cable Modems

Pinging a Wideband Cable Modem

Verifying That a Wideband-Capable Cable Modem is Registered as a Wideband Modem

Verifying Other Information for Wideband Cable Modems

Monitoring and Troubleshooting Wideband Components

This chapter provides an introduction to monitoring and troubleshooting the wideband components of the Cisco Cable Wideband Solution, Release 1.0. The chapter includes the following topics:

•Monitoring Wideband Components

•Troubleshooting Wideband Components

Monitoring Wideband Components

The Cisco IOS command-line interface includes commands that can be issued on the CMTS for the following:

•Monitoring Wideband SIPs

•Monitoring Wideband SPAs

•Monitoring Wideband Channels

•Monitoring RF Channels

•Monitoring Wideband Cable Modems

For detailed information on the syntax, usage, and additional examples for each command, see the documents shown in Table 5-1.

Note Many of the commands used to configure the Cisco uBR10012 router and the Cisco Wideband SIP and SPA are 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 5-1 to find information on these commands.

Table 5-1 Wideband Command Reference Documentation

Document

Command Described

Cisco uBR10012 Universal Broadband Router SIP and SPA Software Configuration Guide

Commands for the Wideband SIP and Wideband SPA, including commands for RF and wideband channels

Cisco Broadband Cable Command Reference Guide

Commands for cable modems and wideband-cable interfaces (wideband channels)

Cisco IOS Release 12.3 Commands Master Commands List

Commands for IOS Release 12.3 that are not cable-specific

Monitoring Wideband SIPs

The following command is useful for monitoring a Cisco Wideband SIP: show diag.

In addition, the show controllers jacket command displays Wideband SIP register values. The show controllers jacket is intended for use by Cisco Systems technical support personnel.

show diag

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. For example, the hardware type of the Wideband SIP is 2jacket-1 card.
Router# show diag 1/0 
Slot/Subslot 1/0:
        2jacket-1 card, 0 ports
        Card is full slot size
        Card is analyzed 
        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:
        Hardware Revision        : 1.0
        Top Assy. Part Number    : 800-22843-04
        Board Revision           : 01
        Deviation Number         : 0-0
        Fab Version              : 04
        PCB Serial Number        : CSJ09030613
        RMA Test History         : 00
        RMA Number               : 0-0-0-0
        RMA History              : 00
        CLEI Code                : 
...
If show diag displays no output, the Wideband SIP is not powered on.
Router# show diag 1/0     // Displays no output
Router#
Monitoring Wideband SPAs

The following commands are useful for monitoring a Cisco Wideband SPA:

•show hw-module bay oir

•show diag

•show controllers modular-cable

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 show hw-module bay oir 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

To display hardware and diagnostic information for a Wideband SPA, use the show diag command.
Router# show diag 1/0/0 
Slot/Subslot/Port 1/0/0:
        24rfchannel-spa-1 card, 1 port + 1 redundant port
        Card is half slot size
        Card is analyzed 
        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:
        Hardware Revision        : 1.0
        Boot Timeout             : 500
        PCB Serial Number        : CSJ09379726
        Part Number              : 73-9597-03
        Part Number Revision     : 05  
        Fab Version              : 03
        RMA Test History         : 00
        RMA Number               : 0-0-0-0
        RMA History              : 00
        Deviation Number         : 0
        Product (FRU) Number     : SPA-24XDS-SFP       
        Version Identifier (VID) : V01 
        Top Assy. Part Number    : 68-2562-03
        Board Revision           : 05  
        CLEI Code                :           
        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
              Calibration values : 
        Platform features        : 00 00 00 00 00 00 00 00 
                                   00 00 00 00 00 00 00 00 
                                   00 00 00 00 00 00 00 00 
                                   00 00 00 00 00 00 00 
show controllers modular-cable

With Cisco IOS commands, the Wideband SPA and its Gigabit Ethernet ports are not considered standard user-configurable interfaces and do not appear in the output of the show interfaces command. The Wideband SPA is a controller and the show controller modular-cable command displays information about the SPA, its Gigabit Ethernet ports, installed SFPs, wideband channels, 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. In the output, the Gigabit Ethernet Port Selected field indicates that Port 0 is the active Gigabit Ethernet port on the Wideband SPA.
Router# show controller modular-cable 1/0/0 brief 
SPA 0 is present
status LED: [green]
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
0          0x3                      0            0 ms
1          0xC                      0            0 ms
2          0x30                     0            0 ms
3          0xC0                     0            0 ms
4          0x300                    0            0 ms
5          0xC00                    0            0 ms
6          0x3000                   0            0 ms
7          0xC000                   0            0 ms
8          0x30000                  0            0 ms
9          0x0                      0            0 ms
10         0x0                      0            0 ms
11         0x0                      0            0 ms
RF Channel information
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
0         0                1            Enabled   
1         0                1            Enabled   
2         0                1            Enabled   
3         0                1            Enabled   
4         0                1            Enabled   
5         0                1            Enabled   
6         0                1            Enabled   
7         0                1            Enabled   
8         0                1            Enabled   
9         0                1            Enabled   
10        0                1            Enabled   
11        0                1            Enabled   
12        0                1            Enabled   
13        0                1            Enabled   
14        0                1            Enabled   
15        0                1            Enabled   
16        0                1            Enabled   
17        0                1            Enabled   
18        0                1            Enabled   
19        0                1            Enabled   
20        0                1            Enabled   
21        0                1            Enabled   
22        0                1            Enabled   
23        0                1            Enabled   
Interrupt Counts
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.
show controllers modular-cable 1/0/0 sfp port 1 
SFP in port 1
SFP is present
SFP LOS is not detected
SFP TX FAULT is not detected
SFP TX is enabled
ID: SFP 
        Extended ID: 4
        Connector: LC 
        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
        Encoding: 8B10B  
        Bit Rate: 1300 Mbps
        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 OUI: 12499
        Vendor Part Number (PN): QFBR-5766LP            Vendor Rev:     
        Vendor SN (SN): AGS090855CE     
        Options implemented:
                LOS Signal
                TX Fault Signal
                TX Disable Signal
        Enhanced options implemented: none
        Diagnostic monitoring implemented: none
        Idprom contents (hex):
        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 
        State: Initalized          
Phased Initialization
        Phase Reached: 4
        Phase Exit Code: 0
        Phase Read Offset: 0
...
Monitoring Wideband Channels

The following commands are useful for monitoring wideband channels:

•show interface wideband-cable

•show hw-module bay

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 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
  Keepalive set (10 sec)
  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
  Queueing strategy: fifo
  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 Cable Interface

When a wideband-channel cable interface is specified in show interface wideband-cable or another Cisco IOS command that displays hardware status and line protocol status for a cable interface, the following applies:

•The hardware status for a wideband-channel cable interface will be up if the Wideband SPA is installed in the Wideband SIP and both are powered on.

•The line protocol for a wideband-channel cable interface will be up if the wideband channel is associated with at least one RF channel and the following parameters have been set for the RF channel:

–RF channel frequency

–MAC address of the edge QAM device or next-hop router

–IP address of the edge QAM device

–UDP port number for the QAM that is used for the RF channel

If the line protocol for a wideband-channel cable interface is up, all wideband-channel configuration information needed to successfully send data is present. However, additional configuration information may be needed to complete the Wideband SPA configuration process. For information on Wideband SPA configuration procedures, see the Cisco uBR10012 Universal Broadband Router SIP and SPA Software Configuration Guide.

show hw-module bay

To display additional information about a wideband channel, use the show hw-module bay command with the wideband-channel keyword. You also have to specify one of the following keywords indicating the particular type of information you want to show:

•association—Displays wideband-to-narrowband (traditional DOCSIS) channel association information. The association of a wideband channel to a traditional DOCSIS downstream channel is made when a primary downstream channel for the fiber node is configured with the downstream cable command.

•config—Displays wideband channel configuration information.

•counters—Displays wideband channel statistics.

•mapping—Displays the mapping of RF channels to wideband channels.

To display wideband-to-narrowband channel association information, use show hw-module bay with the association and wideband-channel keywords. If you specify a wideband channel number after wideband-channel, output is for that channel only. For example:
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 example, the following information is displayed for each wideband channel:

•WB channel—Wideband-cable interface (wideband channel).

•BG ID—Bonding Group ID for the wideband channel.

•Bundle num—The number of the virtual bundle interface in which the wideband channel is a member.

•NB channel—The slot/subslot/port of the primary downstream channel (narrowband channel or traditional DOCSIS channel) for the wideband channel.

•NB channel ID—Channel ID for the primary downstream channel.

•Reserved CIR—The reserved committed information rate (CIR). Because CIR is not currently supported for wideband traffic, reserved CIR is always 0.

•Avail CIR—The part of the CIR that is currently available. Because CIR is not currently supported for wideband traffic, available CIR is always 0.

To display configuration information for a wideband channel, use show hw-module bay with the config and wideband-channel keywords. If you do not specify a wideband channel number after wideband-channel, output is for all wideband channels. For example:
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    123     5/0           Yes
Wideband-Cable1/0/0:9   33    123     5/0           Yes
Wideband-Cable1/0/0:10  34    123     5/0           Yes
Wideband-Cable1/0/0:11  35    123     5/0           Yes
In the preceding example, the following information is displayed for each wideband channel.

•BG ID—Bonding Group ID.

•Bundle num—The number of the virtual bundle interface in which the wideband channel is a member.

•WB Host Slot/Subslot—The 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 Confirguration Guide.

•Primary BG—Yes indicates that the wideband channel is a primary bonding group (primary wideband channel).

To display wideband-channel statistics, use show hw-module bay 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
1/0/0    0            29069                   4032392
To display RF-channels that have been configured for a wideband channel, use show hw-module bay with the mapping and wideband-channel keywords. The BW % column is the percent of the RF channel's 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 
SPA      WB       RF         BW %
         channel  channel
1/0/0    0        0          100        
                  1          100        
1/0/0    1        2          100        
                  3          100        
1/0/0    2        4          100        
                  5          100        
1/0/0    3        6          100        
                  7          100        
1/0/0    4        8          100        
                  9          100        
1/0/0    5        10         100        
                  11         100        
1/0/0    6        12         100        
                  13         100        
1/0/0    7        14         100        
                  15         100        
1/0/0    8        16         100        
                  17         100        
1/0/0    9        18         100        
                  19         100        
1/0/0    10       20         100        
                  21         100        
1/0/0    11       22         100        
                  23         100 
Monitoring RF Channels

The following command is useful for monitoring RF channels on a Wideband SPA: show hw-module bay.

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 show:

•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 show hw-module bay with the config and rf-channel keywords. If you specify an RF channel number after rf-channel, 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 
SPA    RF       Freq       Mod     Annex  IP Address       MAC Address     UDP  
       channel                                                             port
1/0/0  0        699000000  64qam   B      192.168.200.30   0011.920e.a9ff  49152 
In the preceding output, these fields provide information on the edge QAM device that is associated with the RF channel:

•IP Address—The IP address of the edge QAM device.

•MAC address—The MAC address of the next-hop or edge QAM device.

•UDP port—The UDP port number for the edge QAM that will be used for this RF channel.

To display MPEG packets transmitted for an RF channel, use show hw-module bay with the counters and rf-channel keywords.
Router#show hw-module bay 1/0/0 counters rf-channel 0 
SPA      RF channel   MPEG packets tx
1/0/0    0            334815
Monitoring Wideband Cable Modems

The following commands are useful for monitoring wideband cable modem:

•show cable modem wideband

•show cable modem summary

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. For example:
Router# show cable modem wideband                                              
MAC Address    IP Address      I/F       MAC          Prim  WB     DSID MD-DS-SG
                                         State        Sid   Ch ID               
0014.bfbe.3cc0 1.11.0.1        C5/0/1/U0 w-online(pt)  3    24     24   N/A     
0016.92f0.90d6 1.11.0.4        C5/0/1/U0 w-online(pt)  5    24     272  1       
0014.bfbe.3cb8 1.11.0.2        C6/0/1/U0 w-online(pt)  3    36     36   N/A     
0016.92f0.90d8 1.11.0.3        C6/0/1/U0 w-online(pt)  5    36     274  1 
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 5-2 describes the fields that are shown in the show cable modem wideband display.

Table 5-2 Descriptions for the show cable modem wideband Fields

Field

Description

MAC Address

The MAC address for the CM.

IP Address

The IP address that the DHCP server has assigned to the CM.

I/F

The cable interface providing the upstream for this CM.

MAC State

The 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

The primary SID assigned to this CM.

WB Ch ID

The identifier of the primary wideband channel.

DSID

The Downstream Service Identifier.

MD-DS-SG

The MAC Domain Downstream Service Group, the downstream channels of a single MAC domain that reach the cable modem.

If you specify show cable modem wideband registered-traditional-docsis, the command displays wideband-capable modems that are registered as DOCSIS 1.X or DOCSIS 2.0 modems.

show cable modem summary

To display summary information for 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   Unreg   Offline   Wideband   initRC   initD   initIO   initO        
C5/0/1/U0   2       2     0       0         2          0        0       0        0            
C6/0/1/U0   2       2     0       0         2          0        0       0        0            
Router# 
The following example displays summary information and totals for the set of 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     
Router# 
Troubleshooting Wideband Components

This section provides an introduction to troubleshooting the wideband components of the Cisco Cable Wideband Solution:

•Troubleshooting Wideband SIPs and Wideband SPAs

•Troubleshooting Wideband Channels

•Troubleshooting Wideband Cable Modems

The following Cisco cable documents provide useful information on troubleshooting the non-wideband components of the 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 Cable Wideband Solution, see the vendor documentation for the device.

Troubleshooting Wideband SIPs and Wideband SPAs

This section describes troubleshooting techniques for a Wideband SIP or Wideband SPA. It includes the following sections:

•Performing Basic Troubleshooting on a Wideband SIP and Wideband SPA

•Verifying That a Wideband SPA's Active Gigabit Ethernet Port Is Up

•Verifying That a Wideband SPA Is Correctly Configured for SPA-to-EQAM Communications

•Verifying That a Wideband SPA Is Able to Communicate with the Edge QAM Device

Performing Basic Troubleshooting on a Wideband SIP and Wideband SPA

To perform basic troubleshooting on a Wideband SIP and Wideband SPA, complete the following steps:
Action

More Information or Example
Step 1

Use the show diag command to check that a Wideband SIP is powered on.
Router# show diag 1/0 
Slot/Subslot 1/0:                                                               
        2jacket-1 card, 0 ports                                                 
        Card is full slot size                                                  
        Card is analyzed                                                        
        Card detected 0:3:16 ago                                              
        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's 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's FAIL 
LED remains on, the SIP has failed to initialize or has encountered 
an error. 
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.
Step 4

Check that the Wideband SPA's STATUS LED is lighted 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.

Step 5

If cables are connected to one or both of the SPA's Gigabit Ethernet port SFPs and the links for these should be up, check that the Wideband SPA's two A/L (Active Loopback) LEDs are lighted 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.
Verifying That a Wideband SPA's Active Gigabit Ethernet Port Is Up

The Gigabit Ethernet ports on a Wideband SPA are not considered standard user-configurable interfaces and do not appear in the output of the show interfaces command. 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 
SPA 0 is present
status LED: [green]
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 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:

•Check that the SFP module is correctly installed and matches the SFP module in the connected device.

•Check that the cables to the Wideband SPA ports are correctly connected to a powered-on device.

•Check that the cables to the Wideband SPA ports are not bent or damaged.

•Check that a hardware failure has not occurred. For information, see the "Performing Basic Troubleshooting on a Wideband SIP and Wideband SPA" section.

Use the show controller modular-cable command with the sfp keyword to get more detailed information on the SFP modules installed in a Wideband SPA's Gigabit Ethernet ports.

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. For example:
Router# show hw-module bay 1/0/0 config rf-channel 0 verbose 
SPA                                 : Wideband-Cable 1/0/0
RF channel number                   : 0 
Frequency                           : 699000000 Hz
Modulation                          : 64qam
Annex                               : B
IP address of next hop              : 192.168.200.30
MAC address of EQAM                 : 000c.3033.2cbf
UDP port number                     : 49152
EQAM headroom                       : 0 
Check that the following values are correct and match what is configured on the edge QAM device:

•Frequency—The center frequency used for this RF channel.

•IP address of next hop—The IP address of the edge QAM device for this RF channel.

•MAC address—The MAC address of the next-hop or edge QAM device for this RF channel.

•UDP port—The 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 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
1/0/0    0            3703146                 
1/0/0    1            3636531                 
1/0/0    2            3589760                 
1/0/0    3            3549859                 
1/0/0    4            0                       
1/0/0    5            0                       
1/0/0    6            0                       
1/0/0    7            0                       
1/0/0    8            0                       
1/0/0    9            0                       
1/0/0    10           0                       
1/0/0    11           0                       
1/0/0    12           0                       
1/0/0    13           0                       
1/0/0    14           0                       
1/0/0    15           0                       
1/0/0    16           0                       
1/0/0    17           0                       
1/0/0    18           0                       
1/0/0    19           0                       
1/0/0    20           0                       
1/0/0    21           0                       
1/0/0    22           0                       
1/0/0    23           0 
Troubleshooting Wideband Channels

This section describes troubleshooting techniques for wideband channels. It includes the following sections:

•Verifying That a Wideband Channel is Up and Is Transmitting Packets

•Verifying That a Wideband Channel is Configured Correctly

For information on 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 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
  Keepalive set (10 sec)
  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
  Queueing strategy: fifo
  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 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" 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):
interface Cable5/0/1
 no ip address
 load-interval 30
 no cable packet-cache
 cable bundle 123
 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 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 will be 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 output for the mapping keyword:
Router# show hw-module bay 1/0/0 mapping wideband-channel 
SPA      WB       RF         BW %
         channel  channel
1/0/0    0        0          100        
                  1          100        
1/0/0    1        2          100        
                  3          100        
1/0/0    2        4          100        
                  5          100        
1/0/0    3        6          100        
                  7          100        
1/0/0    4        8          100        
                  9          100        
1/0/0    5        10         100        
                  11         100        
1/0/0    6        12         100        
                  13         100        
1/0/0    7        14         100        
                  15         100        
1/0/0    8        16         100        
                  17         100        
1/0/0    9        18         100        
                  19         100        
1/0/0    10       20         100        
                  21         100        
1/0/0    11       22         100        
                  23         100 
A channel-bonded wideband channel is associated with at least two RF channels depending on the wideband channel's 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

•Verifying That a Wideband-Capable Cable Modem is Registered as a Wideband Modem

•Verifying Other Information for Wideband Cable Modems

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. For example:
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 cable operators 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 show cable modem 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
                                         State          Sid   ID
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.

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 CM.

•show cable modem classifiers—Displays information about the classifiers being used for each CM.

•show cable modem cnr—Displays carrier-to-noise ratio (CNR) information for CMs that are using cable interface line cards with hardware spectrum-management capabilities.

•show cable modem connectivity—Displays connectivity information for each CM.

•show cable modem counters—Displays traffic counters for each CM.

•show cable modem cpe—Displays information about the CPE devices using each CM.show cable modem errors—Displays packet error information for each CM.

•show cable modem flap—Displays flap-list information for each CM.

•show cable modem mac—Displays MAC-layer information for each CM.

•show cable modem offline—Lists the offline CMs.

•show cable modem maintenance—Displays information about the Station Maintenance errors for each CM.

•show cable modem offline—Lists the offline CMs.

•show cable modem phy—Displays the PHY layer information for each CM.

•show cable modem qos—Displays the quality of service (QoS) information for each CM.

•show cable modem registered—Lists the registered CMs.

•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 CMs on each cable interface.

•show cable modem unregistered—Lists the unregistered CMs.

•show cable modem vendor—Displays vendor names and identifies for each CM.

For information on the preceding commands, see the Cisco Broadband Cable Command Reference Guide.