Cisco Cisco TelePresence Management Suite (TMS) Version 15 Maintenance Manual

If the two IP addresses are not the same, Cisco TMS will try to contact the system on the

Source IP Address in the IP

header:

■

If the system responds to requests sent to this address, Cisco TMS compares the address the system used to reach
Cisco TMS with the DNS addresses set in

Administrative Tools > Configuration > Network Settings

—

If the address used by the system is equal to the internal address (

Advanced Network Settings for Systems

on Internal LAN > TMS Server Fully Qualified Hostname

) the system is set to

Reachable on LAN. The same

will be true if both the internal and the public addresses are set to the same DNS name.

—

If the address is equal to the public address only (

Advanced Network Settings for Systems on Public

Internet/Behind Firewall > TMS Server Address (Fully Qualified Hostname or IPv4 Address)

), the system is

set to

Reachable on Public Internet.

■

If the system does not respond to the request sent to the

Source IP Address in the IP header, Cisco TMS changes

its System Connectivity status to

Behind Firewall.

Examples

Here is an example registration event sent to Cisco TMS from a Cisco TelePresence System Integrator C Series system:

(...)
<PostEvent>

<SystemName>example_system</SystemName>

<ProductType>TANDBERG Codec</ProductType>

<ProductID>TANDBERG Codec</ProductID>

</Identification>

<Event>Register</Event>

</PostEvent>
(...)

In the example above, the Cisco TelePresence Codec C90 reports its local IP address as

172.16.0.20

■

A system is set to

Reachable on LAN, and reports its IP address as: 172.16.0.20. The Source IP Address in the IP

header is also: 172.16.0.20. Cisco TMS keeps the system as

Reachable on LAN.

■

A system is set to

Reachable on LAN, and reports its IP address as: 172.16.0.20. The Source IP Address in the IP

header is: 10.0.0.50. Cisco TMS then attempts to contact the system on 10.0.0.50. When the request times out,
Cisco TMS changes the system to

Behind Firewall.

■

A system is set to

Reachable on Public Internet, and reports its IP address as: 172.16.0.20. The Source IP Address

in the IP header is: 10.0.0.50. Cisco TMS then attempts to contact the system on 10.0.0.50, and the network device
at 10.0.0.50 is able to route the traffic back to the original system. The original system replies to Cisco TMS, and
Cisco TMS keeps the system as

Reachable on Public Internet.

Calendar Push Behavior

Cisco TMS sends lists of future bookings to endpoints that support the Meetings calendar feature. The bookings include
subject, organizer, connection type, start time and so on.

The calendar pusher mechanism:

■

updates all systems, waits for a minute, then starts again.

■

pushes entries that are at most 72 hours in the future.

■

pushes to all systems that have seen a calendar change since the last time it ran.

Endpoints present this Meetings calendar information in different ways depending on the model and software version.

Cisco TelePresence Management Suite Administrator Guide

System Management Overview