Useful CLI commands for Cisco CUCM, Cisco Unity Connection and IM and Presence

I don’t work on the command line of CUCM often, but when the need arises here is the short list of commands to keep.  For ssh connection you use the OS Administration username/password created during the CUCM  installation. BTW the CLI commands below are valid for all the products: Cisco Unified Collaboration Manager (CUCM), Cisco Unity Connection (CUC) and IM & Presence as well.
As Cisco do not want us to mess with the underlying OS, our interaction is limited to a very restricted kind of shell (you get admin: prompt after entering it). So you don’t have access to the Linux commands, but you do have a predefined set of CUCM commands of which I present most useful ones here. When in doubt about the command syntax - use tab/? completion to get all possible options.

  • General health status info, the first command I run to see unusual CPU/IO load , uptime:
    show status
admin:show status

Host Name          : CUCMPUB
Date               : Fri Oct 11, 2019 09:51:53
Time Zone          : Israel Daylight Time (Asia/Jerusalem)
Locale             : en_US.UTF-8
Product Ver        :
Unified OS Version :

 09:51:55 up 403 days, 20:41,  1 user,  load average: 0.12, 0.09, 0.09

CPU Idle:   97.44%  System:   01.54%    User:   01.03%
  IOWAIT:   00.00%     IRQ:   00.00%    Soft:   00.00%

Memory Total:        8062468K
        Free:         124588K
        Used:        7937880K
      Cached:        3378724K
      Shared:         278436K
     Buffers:         303324K

                        Total            Free            Used
Disk/active         19805456K        6083384K       13519528K (69%)
Disk/inactive       19805456K       16939384K        1853336K (10%)
Disk/logging        69235192K       35162600K       30548960K (47%)
  • Checking the NTP time status (NTP source, synchronization, stratum)

utils ntp status

admin:utils ntp status
ntpd (pid 15265) is running...

     remote           refid      st t when poll reach   delay   offset  jitter
*     2 u  588 1024  377    0.624   -0.579   0.845

synchronised to NTP server ( at stratum 3
   time correct to within 84 ms
   polling server every 1024 s

Current time in UTC is : Fri Oct 11 06:54:15 UTC 2019
Current time in Asia/Jerusalem is : Fri Oct 11 09:54:15 IDT 2019

Here: - NTP time data source for the CUCM and most probably for the IP phones - NTP source from which the server gets its time in turn. It has startum 2 here.

  • The best friend in need - ping, to debug reachability/packet loss/latency issues:
    utils network ping ?

ping dest [count VALUE] [size VALUE]
dest mandatory   dotted IP or host name
count   optional count value (default is 4)
size optional size of ping packet in bytes (default is 56)

utils network ping count 10 size 1300

PING ( 1300(1328) bytes of data.
1308 bytes from icmp_seq=0 ttl=50 time=58.2 ms
1308 bytes from icmp_seq=1 ttl=50 time=57.8 ms
  • Close friend of ping - traceroute:
    utils network traceroute
1 (  0.336 ms  0.296 ms  0.331 ms
< cut for clarity> ...
  • Show routing table:
    show tech network routes
-------------------- show platform network --------------------

Routes: dev eth0  proto kernel  scope link  src dev eth0  scope link
default via dev eth0
  • Show established connections with the process using the port:

show network status [process nodns search [search term]]

Here I search for all established connections on port 5060 of CUCM ( (namely SIP phones and SIP trunks):

show network status process nodns search 5060
tcp        0      0           ESTABLISHED 28364/ccm
tcp        0      0           ESTABLISHED 28364/ccm
tcp        0      0           ESTABLISHED 28364/ccm
tcp        0      0           ESTABLISHED 28364/ccm
  • Working with ARP table:
    utils network arp delete - delete some ARP entry
    utils network arp list    - list the ARP table
    utils network arp set
    utils network arp list
Address               HWtype  HWaddress        Flags Mask         Iface         ether   E0:5F:B9:XX:XX:XX   C                  eth0         ether   44:D3:CA:XX:XX:XX   C                  eth0
  • Show open and accessible over the network ports with listening daemons:
    show network ipprefs public
Application  IPProtocol   PortValue Type      XlatedPort   Status    Description
------------ ------------ ------------ ------------ ------------ ------------ ------------
sshd      tcp       22        public    -         enabled   sftp and ssh access
clm       udp       8500      public    -         enabled   cluster manager
clm       tcp       8500      public    -         enabled   cluster manager
tomcat    tcp       8443      translated   443       enabled   secure web access
tomcat    tcp       8080      translated   80        enabled   web access
ntpd      udp       123       public    -         enabled   network time sync<!-- more -->
taps      tcp       9050      public    -         enabled   Cisco TAPS service
soapmonitor  tcp       5007      public    -         enabled   soapmonitor port
dhcpd     udp       67        public    -         enabled   DHCP server port
ccm       tcp       8002      public    -         enabled   CCM SDL Link
ccm       tcp       1720      public    -         enabled   H225 SIGNAL
ccm       tcp       2000      public    -         enabled   SCCP-SIG
ccm       tcp       2001      public    -         enabled   TITAN CONVERT
ccm       tcp       2002      public    -         enabled   VEGA CONVERT
ccm       udp       2427      public    -         enabled   MGCP
ccm       tcp       2428      public    -         enabled   MGCPBH
ccm       tcp       5060      public    -         enabled   SIP Listener Port for TCP
ccm       udp       5060      public    -         enabled   SIP Listener Port for UDP
ALL       tcp       32768:61000  public    -         enabled   generic ephemeral tcp ports
ALL       udp       32768:61000  public    -         enabled   generic ephemeral udp ports
CTIManager   tcp       2748      public    -         enabled   CTIManager QBE TCP
CTIManager   tcp       8003      public    -         enabled   CTI SDL Link
acserver  tcp       1101      public    -         enabled   Attendent Console RMI callback
acserver  tcp       1102      public    -         enabled   Attendent Console RMI server
acserver  udp       3223      public    -         enabled   Attendent Console Call Control
ctftp     udp       69        public    -         enabled   TFTP access to CUCM TFTP Server
ctftp     tcp       6970      public    -         enabled   HTTP access to CUCM TFTP Server
ipvms     udp       24576:32767  public    -         enabled   IP Voice Media Streaming Driver RTP
ma        tcp       2912      public    -         enabled   IP Manager Assistant
snmpdm    udp       161       public    -         enabled   SNMP


show open ports
show open ports all
show open ports regexp

  • Show number of open connections . While the number of connections does NOT equal number of registered phones, if there is some network connectivity issue this number will be unusually low. E.g. on this CUCM there are 52 SIP registered phones:
    show network ip_conntrack
  • Show the hardware server on which the CUCM is installed:
    show hardware
HW Platform       : VMware Virtual Machine
Processors        : 2
Type              : Intel(R) Xeon(R) Silver 4114 CPU @ 2.20GHz
CPU Speed         : 2200
Memory            : 8192 MBytes
Object ID         :
OS Version        : UCOS
Serial Number     : VMware-56 4d 7a aa bb cc dd ee-ee ff 11 22 33 44 55 77
  • Show list of running processes (Linux style):
    show process list
1 init [3]
2 [migration/0]
<cut for brevity>
  • Show I/O stats:
    utils iostat
Executing command... Please be patient

Linux 2.6.32-573.18.1.el6.x86_64 (CUCMPUB)      10/11/2019      _x86_64_        (2 CPU)

10/11/2019 10:06:07 AM
avg-cpu:  %user   %nice %system %iowait  %steal   %idle
           5.64    0.00    4.21    0.01    0.00   90.14

Device:         rrqm/s   wrqm/s     r/s     w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
scd0              0.00     0.00    0.00    0.00     0.00     0.00     8.00     0.00    1.16   1.16   0.00
sda               0.02    19.67    0.22   42.42     2.48   496.75    11.71     0.01    0.22   0.03   0.14
  • And the last resort - restarting specific service or the whole CUCM. Usually when things go rough and it is not possible to access GUI - be it weird CPU overload or web service stuck, I do restart to the whole CUCM with:

utils system {restart | shutdown | switch-version}

in VMware you can also reboot the virtual machine hosting CUCM.

  • Stop/start specific service, but be aware the services list is limited to:
    utils service stop
Invalid service name for start/stop, valid names are:
  System SSH
  Cluster Manager
  Service Manager
  A Cisco DB
  Cisco Tomcat
  Cisco Database Layer Monitor
  Cisco CallManager Serviceability
  <cut for brevity>

utils service
utils service auto-restart
utils service list
utils service restart
utils service start
utils service stop

  • Get the disk usage:
    show diskusage activelog

  • Show logged in admins:
    show logins

administ pts/0   Wed Aug 12 09:56   still logged in
  • Changing password for yourself/another user . Be very careful with changing password of course.

set password { age* | complexity* | expiry* | inactivity* | user* }

  • Show user expiration:

show password expiry user list

show password expiry user list

Password age limits for OS CLI users are:
|MAX-age|  MIN-age|
| Days  |   Days  |    UserID
|=======| ========| =============================
| 99999 |       0 |    administrator

The commands below are mostly relevant to the now EOL hardware server used for CUCM Cisco 7800 Series Media Convergence Servers

  • Show the status of the fans (irrelevant for VMware based install):
    show environment fans
(RPMS)     Lower                     Critical
ID     Current   Threshold Status
Fan Sensor 1 7800     4200      OK
Fan Sensor 2 7950     4200      OK
Fan Sensor 3 7800     4200      OK
Fan Sensor 4 7350     4200      OK
Fan Sensor 5 7200     4200      OK
  • Show the server temperature (irrelevant for VMware based install):
    show environment temperatures
(Celcius)    Non-Critical   Critical   Threshold    Threshold
     ID       Current  Lower   Upper   Lower   Upper  Location Temperature Sensor
     1          24          53          54           55        62           1
  • Show the server hardware (irrelevant for VMware based install):
    show hardware
HW Platform    : 7825I4
Processors     : 1
Type           : Intel(R) Core(TM)2 Duo CPU  E8400  @ 3.00GHz
CPU Speed      : 3000
Memory         : 2048 MBytes
  • Show physical memory (irrelevant for VMware based install):
    show memory modules
Bank  Locator   Size  Active Status
  • Show interface status to see whether it is duplex full or not etc. (more useful for hardware based servers than VMware ones):
    show network eth0
Ethernet 0
DHCP      : disabled        Status  : up
IP Address   :     IP Mask :
Link Detected: yes             Mode    : Auto enabled, Full, 100 Mbits/s
Duplicate IP : no
DNS   Not configured.
Gateway   : on Ethernet 0
  • Show the firewall status. Being a Red Hat server CUCM includes iptables to work with firewall which is on by default, but I never had the need to change rules or turn it off:
    utils firewall ipv4 debug
    utils firewall ipv4 disable
    utils firewall ipv4 enable
    utils firewall ipv4 list      -  List all the rules
    utils firewall ipv4 status - see whether the firewall on or off