Terms you need to understand:
Techniques you need to master:
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Set up Cisco Unified CME to provide TFTP and FTP backup and restore capabilities |
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Activate, deactivate, and view Cisco Unified CME CLI |
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Use |
After Cisco Unified CME is installed and operating, administrators must be able to identify and correct problems incurred for adds, moves, and changes. This chapter describes the protocols used to back up the Cisco Unified CME configuration.
This chapter also describes the use of show and debug commands. Using the CLI debug commands can impact call processing and should be used during low-call-volume periods and disabled when the troubleshooting issue is resolved.
There are two different protocols that you can use to back up Cisco Unified Communications Manager Express (CME): TFTP and FTP. Figure 13.1 is a typical setup for maintaining configuration backups.
There are several TFTP and FTP freeware packages available to provide the TFTP and FTP services on a local PC. Listing 13.1 shows the interactive backup process.
Listing 13.2 shows a single command to back up the configuration. This is useful for building configuration backup scripts for multiple devices. Make sure that you add two extra carriage return/line feed (CR/LF) combinations after the single line to bypass the host name and filename verifications.
You can use FTP to back up Cisco Unified CME configurations. As shown in Listing 13.3, the file transfer fails if you do not create an FTP username and password before attempting a transfer.
You must create a valid FTP username and password and run it again, as shown in Listing 13.4.
Listing 13.4 Successful FTP Backup
CUCME (config)# ip ftp user backup
CUCME(config)# ip ftp password backup00!
CUCME(config)# ^Z
CUCME# copy running-config ftp
Address or name of remote host []? 192.168.10.148
Destination filename [cucme-confg]?
Writing cucme-confg !
16130 bytes copied in 8.460 secs (1907 bytes/sec)
CUCME#
Tip
Use the FTP service when you are uploading new IOS versions; the upload time is greatly reduced.
Cisco Unified CME tends to operate without intervention after the appropriate installation features and functions have been configured, tested, and verified. In this section, we cover tools that you can use to make troubleshooting the installation much easier.
One of the most common issues is to complete all the correct setups for telephony service, add the correct ephone-dns and ephones, and copy all the appropriate IP phone operating files to flash—and the phones still won’t operate. The debug tftp events command is one of the clearest methods for tracking the initial registration process. Listing 13.5 shows the output generated by an IP phone attempting and failing to retrieve its configuration file.
Listing 13.5 Debug TFTP Events
CUCME# terminal monitor
CUCME# debug tftp events
TFTP Event debugging is on
Sep 20 20:37:47.887: TFTP: Looking for CTLSEP00036BAAC71D.tlv
Sep 20 20:37:47.959: TFTP: Looking for SEP00036BAAC71D.cnf.xml
Sep 20 20:37:48.055: TFTP: Looking for XMLDefault.cnf.xml
Sep 20 20:37:49.399: TFTP: Opened system:/its/XMLDefault.cnf.xml, fd 7,
size 2679 for process 65
Sep 20 20:37:49.419: TFTP: Finished system:/its/XMLDefault.cnf.xml, time 00:00:00 for process 65
Sep 20 20:37:49.555: %IPPHONE-6-REG_ALARM: 13: Name=SEP00036BAAC71D Load=8.0(9.0) Last=CM-aborted-TCP
CUCME# no debug all
Exam Alert
If you telnet into the Cisco Unified CME router, don’t forget to use the terminal monitor command before entering your debug command. Use the terminal no monitor command and either the no debug all command or the undebug all command when you have solved the issue.
The four most common issues that prevent the IP phones from registering relate to the omitting the following commands, which are covered in more detail in Chapter 10, “Configuring Cisco Unified CME to Support Endpoints”:
The load command under telephony-service
The ip source command under telephony-service
The create cnf-files command under telephony-service
The tftp-server global commands for all the files required to activate the IP phone
The show telephony-service command can be used to verify the first three of the preceding issues, and the show run command can be used to verify the last issue.
Exam Alert
Verify these four issues because they typically are responsible for 80 percent of all IP phone registration errors when installing a Cisco Unified CME platform, either through omission or incorrect configuration.
The load command identifies the IP phone software image that is compatible with the current version of IOS software on the router:
telephony-service
. . .
load 7931 SCCP31.8-3-3S
load 7961 SCCP41.8-3-3S
Caution
These load commands reference a .loads file that must be configured to initiate the synchronization of the Cisco Unified CME IOS and the IP phone.
The ip source command creates the contact point for all TFTP and registration requests on the Cisco Unified CME host:
telephony-service
. . . ip source-address 10.6.150.1 port 2000
The create cnf-files and cnf-file perphone commands should be used to create a specific file for each phone to simplify troubleshooting a specific IP phone:
telephony-service. . .
cnf-file perphone
create cnf-files
The tftp-server command activates the Cisco Unified CME TFTP process for a specific file. The newer Cisco IP phones have complex operating system files that are downloaded individually based on the instructions in the .loads file. Listing 13.6 shows the files required for a Cisco 7931 IP Phone.
Listing 13.6 Files Required for a Cisco 7931 IP Phone
tftp-server flash:/apps31.8-3-2-27.sbn alias apps31.8-3-2-27.sbn
tftp-server flash:/cnu31.8-3-2-27.sbn alias cnu31.8-3-2-27.sbn
tftp-server flash:/cvm31sccp.8-3-2-27.sbn alias cvm31sccp.8-3-2-27.sbn
tftp-server flash:/dsp31.8-3-2-27.sbn alias dsp31.8-3-2-27.sbn
tftp-server flash:/jar31sccp.8-3-2-27.sbn alias jar31sccp.8-3-2-27.sbn
tftp-server flash:/SCCP31.8-3-3S.loads alias SCCP31.8-3-3S.loads
tftp-server flash:/term31.default.loads alias term31.default.loads
The following are samples of show commands used to troubleshoot and verify Cisco Unified CME operation.
The show ephone command can provide basic or detailed information about an individual phone, all phones of a specific type, just the registered phone, and many other options. In Listing 13.7, not all phone types are shown to reduce the list of options for this command. Listings 13.7 through 13.9 show variations of the show ephone command.
Listing 13.7 The show ephone Command Option Output
CME# show ephone ?
. . .
7911 Cisco IP Phone 7911
. . .
7941 Cisco IP Phone 7941
. . .
7961 Cisco IP Phone 7961
7961GE Cisco IP Phone 7961GE
7962 Cisco IP Phone 7962
7965 Cisco IP Phone 7965
. . .
CIPC Cisco IP Communicator
H.H.H mac address
anl SCCP Gateway (AN)
ata ATA phone emulation for analog phone
attempted-registrations Attempted ephone list
bri SCCP Gateway (BR)
cfa registered ephones with call-forward-all set
dn Dn with tag assigned
dnd registered ephones with do-not-disturb set
login phone login status
offhook Offhook phone status
overlay registered ephones with overlay DNs
phone-load Ephone phoneload information
registered Registered ephone status
remote non-local phones (with no arp entry)
ringing Ringing phone status
sockets Active ephone sockets
summary Summary of all ephone
tapiclients Ephone status of tapi client
telephone-number Telephone number assigned
unregistered Unregistered ephone status
vgc-phone vg248 phone emulation for analog phone
| Output modifiers
<cr>
Listing 13.8 The show ephone Command Output
CME# show ephone
ephone-1[0] Mac:001E.7AC3.9460 TCP socket:[1] activeLine:0 REGISTERED in SCCP ver 12/9
mediaActive:0 offhook:0 ringing:0 reset:0 reset_sent:0 paging 0 debug:0 caps:8
IP:10.1.3.34 49759 7961 keepalive 14383 max_line 6
button 1: dn 1 number 2101 CH1 IDLE CH2 IDLE
Preferred Codec: g711ulaw
Username: abrown Password: cisco
ephone-3[2] Mac:001B.D508.6693 TCP socket:[3] activeLine:0 REGISTERED in SCCP ver 12/9
mediaActive:0 offhook:0 ringing:0 reset:0 reset_sent:0 paging 0 debug:0 caps:9
IP:10.1.3.32 52326 7931 keepalive 14457 max_line 24
button 1: dn 3 number 2103 CH1 IDLE
Preferred Codec: g711ulaw
Username: asmith Password: 123
ephone-4[3] Mac:4000.0000.1234 TCP socket:[-1] activeLine:0 UNREGISTERED
mediaActive:0 offhook:0 ringing:0 reset:0 reset_sent:0 paging 0 debug:0
caps:0
IP:0.0.0.0 0 Unknown 0 keepalive 0 max_line 0
Preferred Codec: g711ulaw
Listing 13.9 The show ephone registered Command Output
CME# show ephone registered
ephone-1[0] Mac:001E.7AC3.9460 TCP socket:[1] activeLine:0 REGISTERED in SCCP ver 12/9mediaActive:0 offhook:0 ringing:0 reset:0 reset_sent:0 paging 0 debug:0 caps:8IP:10.1.3.34 49759 7961 keepalive 14385 max_line 6
button 1: dn 1 number 2101 CH1 IDLE CH2 IDLE
Preferred Codec: g711ulaw
Username: abrown Password: cisco
ephone-3[2] Mac:001B.D508.6693 TCP socket:[3] activeLine:0 REGISTERED in SCCP ver 12/9mediaActive:0 offhook:0 ringing:0 reset:0 reset_sent:0 paging 0 debug:0 caps:9IP:10.1.3.32 52326 7931 keepalive 14459 max_line 24
button 1: dn 3 number 2103 CH1 IDLE
Preferred Codec: g711ulaw
Username: asmith Password: 123
The show ephone-dn command provides detailed information on the configuration of each directory number assigned in the Cisco Unified CME to phones and features. Listings 13.10 through 13.12 show variations of the show ephone-dn command.
Listing 13.10 The show ephone-dn Command Options Output
CME# show ephone-dn ?
<1-144> dn tag
callback Show ephone-dn with pending callback set
conference Show ephone-dn in conference mode
loopback Show ephone-dn in loopback mode
park Show ephone-dn configured as park-slots
statistics Show ephone-dn most recent call statistics
summary Summary of all ephone-dn
| Output modifiers
<cr>
Listing 13.11 The show ephone-dn Command Output
CME# show ephone-dn
50/0/1 CH1 IDLE CH2 IDLE
EFXS 50/0/1 Slot is 50, Sub-unit is 0, Port is 1
Type of VoicePort is EFXS
Operation State is DORMANT
Administrative State is UP
No Interface Down Failure
Description is not set
Noise Regeneration is enabled
Non Linear Processing is enabled
Non Linear Mute is disabled
Non Linear Threshold is -21 dB
Music On Hold Threshold is Set to -38 dBm
In Gain is Set to 0 dB
Out Attenuation is Set to 0 dB
Echo Cancellation is enabled
Echo Cancellation NLP mute is disabled
Echo Cancellation NLP threshold is -21 dB
Echo Cancel Coverage is set to 8 ms
Echo Cancel worst case ERL is set to 6 dB
Playout-delay Mode is set to adaptive
Playout-delay Nominal is set to 60 ms
. . .
Listing 13.12 The show ephone-dn statistics Command Output
CME1# show ephone-dn 1 statistics
DN 1 chan 1 incoming 1 answered 0 outgoing 19 answered 14 busy 0
Far-end disconnect at: connect 1 alert 0 hold 0 ring 1
Last 64 far-end disconnect cause codes
0 16 28 19 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
local phone on-hook
The following URL defines cause codes:
http://www.quintum.com/support/xplatform/ivr_acct/webhelp/Disconnect_Cause_Codes.htm
The show telephony-service command is used to verify the operation of the Cisco Unified CME call-agent. Listings 13.13 through 13.15 show variations of the show telephony-service command.
Listing 13.13 The show telephony-service Command Options Output
CME# show telephony-service ?
admin Show telephony-service admin username and password
all Show telephony-service details
bulk-speed-dial Show Bulk Speed dial Info
conference Show telephony-service conferences
dial-peer Show telephony-service dialpeers
directory-entry Show telephony-service directory-entry
ephone Show ephone configuration
ephone-dn Show ephone-dn configuration
ephone-dn-template Show ephone-dn-template configuration
ephone-template Show ephone-template configuration
fac Show Feature Access Code List
tftp-bindings Show telephony-service tftp-server bindings
user-defined-locale Show User Defined Locales
voice-port Show telephony-service voice ports
| Output modifiers
<cr>
Listing 13.14 The show telephony-service voice-port Command Output
CME# show telephony-service voice-port
voice-port 50/0/1
! Slot 50 is used to create EFXS ports to
station-id number 2101
! represent ephone-dns.
timeout ringing 10
!
voice-port 50/0/3
station-id number 2103
timeout ringing 10
!
voice-port 50/0/4
station-id number 2104
!
Listing 13.15 The show telephony-service Command Output
CME# show telephony-service
CONFIG (Version=4.3(0))
=====================
Version 4.3(0)
Cisco Unified Communications Manager Express
For on-line documentation please see:
www.cisco.com/univercd/cc/td/doc/product/access/ip_ph/ip_ks/index.htm
ip source-address 10.1.150.1 port 2000
no auto-reg-ephone
load 7931 SCCP31.8-3-3S
load 7961 SCCP41.8-3-3S
max-ephones 42
max-dn 100
max-conferences 8 gain -6
dspfarm units 0
dspfarm transcode sessions 0
conference software
privacy
no privacy-on-hold
hunt-group report delay 1 hours
hunt-group logout DND
max-redirect 5
voicemail 2190
—More—
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A and E. You can use FTP and TFTP to back up a Cisco Unified CME configuration to an external device. Answer C is incorrect because SMTP is an email protocol. Answers B and D, SCCP and SIP, are used for IP phone call control and are incorrect. |
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B. The |
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A. The |
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D. The |
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B and E. These commands display the ephone-dns assigned to the conference and park features. Answers A and C are invalid commands, and answer D is used for an overview of all features, so these answers are incorrect. |
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D. This command highlights the source IP address, phone load information, and the configuration file generation status. Answer A shows directory numbers, answer B is used for PSTN connections, answer C shows registered ephones, and answer E is an invalid command and they are all incorrect. |
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D. The |