Notes
Protocol/Service
Underlying
Protocol
Remote Device
Port
Cisco Desktop
Collaboration
Experience
Source Port
TCP
PC Dynamic
Range
4224
Secure shell
TCP
Server
configured
22
Telnet
TCP
Server
configured
23
Load upgrades
TCP
4051
Load upgrades
RDP
4052
Special debugs
4061
Contacts search
8443
Behavior During Times of Network Congestion
Anything that degrades network performance can affect voice and video quality, and in some cases, can cause
a call to drop. Sources of network degradation can include, but are not limited to, the following activities:
•
Administrative tasks, such as an internal port scan or security scan
•
Attacks that occur on your network, such as a Denial of Service attack
To reduce or eliminate any adverse effects, schedule administrative network tasks during a time when the
devices are not being used or exclude the devices from testing.
Cisco Desktop Collaboration Experience DX650 Administration Guide, Release 10.1(1)
7
Behavior During Times of Network Congestion
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