Cisco Cisco IP Contact Center Release 4.6.1 Maintenance Manual
instance that is in control of the system clock, and only this NIC is able to affect the time on
the CICM machine. This NIC will participate in time synchronization with the Network
Applications Managers (NAMs).
the CICM machine. This NIC will participate in time synchronization with the Network
Applications Managers (NAMs).
While initializing, each INCRP NIC will query MDS to determine whether it can control the
clock. Only one NIC on each machine will receive a positive response. This NIC will then
periodically (every few hours) send an unsolicited “Time Indication” message to one member
of each duplexed CIC pair. The time indication will include the NIC’s machine name and current
time.
clock. Only one NIC on each machine will receive a positive response. This NIC will then
periodically (every few hours) send an unsolicited “Time Indication” message to one member
of each duplexed CIC pair. The time indication will include the NIC’s machine name and current
time.
Each duplexed CIC pair can be configured to be a "Time Server," a "Time Client," or "Passive."
A CIC that is passive with regard to time synchronization forwards all received time indications
to the Routers for reporting purposes. A "Time Server" CIC additionally responds to each "Time
Indication" message from an INCRP NIC with a “Set Time Request” message containing its
own (MDS) time. (If the NIC and CIC reside on the same machine, as determined by the machine
name in the "Time Indication" message, the CIC will not send a "Set Time Request" – this
prevents the NAM and CICM from conflicting over control over the system clock.)
A CIC that is passive with regard to time synchronization forwards all received time indications
to the Routers for reporting purposes. A "Time Server" CIC additionally responds to each "Time
Indication" message from an INCRP NIC with a “Set Time Request” message containing its
own (MDS) time. (If the NIC and CIC reside on the same machine, as determined by the machine
name in the "Time Indication" message, the CIC will not send a "Set Time Request" – this
prevents the NAM and CICM from conflicting over control over the system clock.)
A "Time Client" CIC receives "Time Indication" messages and forwards them to the Routers
for reporting purposes. In addition, a time client CIC can also receive "Set Time Request"
messages. Upon receipt of a "Set Time Request" message, the CIC sends a "Set System Time"
message to the Routers, which in turn send a "Set System Time" message to MDS. Participation
of the Routers is required to ensure that the "Set System Time" message is delivered to MDS
on both sides of the system.
for reporting purposes. In addition, a time client CIC can also receive "Set Time Request"
messages. Upon receipt of a "Set Time Request" message, the CIC sends a "Set System Time"
message to the Routers, which in turn send a "Set System Time" message to MDS. Participation
of the Routers is required to ensure that the "Set System Time" message is delivered to MDS
on both sides of the system.
Similar processing occurs when an INCRP NIC receives a “Set Time Indication” from a (time
server) CIC: the NIC sends a "Set System Time" message to the Routers, and the Routers in
turn send a "Set System Time" message to MDS on both sides of the system. In addition, the
INCRP NIC forwards the “Set Time Indication” message to one member of each duplexed CIC
pair other than the one from which the original message was received. This serves to keep
multiple duplexed NAM pairs synchronized with each other.
server) CIC: the NIC sends a "Set System Time" message to the Routers, and the Routers in
turn send a "Set System Time" message to MDS on both sides of the system. In addition, the
INCRP NIC forwards the “Set Time Indication” message to one member of each duplexed CIC
pair other than the one from which the original message was received. This serves to keep
multiple duplexed NAM pairs synchronized with each other.
CIC
The CIC can be configured with respect to time synchronization. A CIC configured to be a
“Time Server” responds to a "Time Indication" message from an INCRP NIC with a "Set Time
Request" message. A CIC configured to be a "Time Client" accepts "Set Time Request" messages
from INCRP NICs and sends a "Set System Time" message to the Router. All CICs forward
CICM time indications to the Routers for reporting.
“Time Server” responds to a "Time Indication" message from an INCRP NIC with a "Set Time
Request" message. A CIC configured to be a "Time Client" accepts "Set Time Request" messages
from INCRP NICs and sends a "Set System Time" message to the Router. All CICs forward
CICM time indications to the Routers for reporting.
The CIC Time Manager Type key in the registry is:
HKEY_LOCAL_MACHINE\SOFTWARE\Cisco Systems, Inc.\ICM\
instanceName\RouterA(B)\CIC\CurrentVersion\Configuration\CIC Time
Manager Type
To configure a CIC to be a Time Server, set the type to 2. To configure a CIC to be a Time
Client, set the type to 1. Setting the Type to 0 will only forward Time Indications to the Router.
Client, set the type to 1. Setting the Type to 0 will only forward Time Indications to the Router.
Administration Guide for Cisco Unified ICM/Contact Center Enterprise & Hosted Release 8.x
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Chapter 5: General Administration
Cisco Unified Intelligent Contact Management Time Synchronization