Cisco Cisco Agent Desktop 8.5 Guia De Configuração Rápida
Using Multiple NICs with the VoIP Monitor Service
November 2013
71
Using Multiple NICs with the VoIP Monitor
Service
Service
The VoIP Monitor service sniffs RTP traffic from the network and sends it to registered
clients. This requires support from the switch to which the service is connected.
clients. This requires support from the switch to which the service is connected.
The VoIP Monitor service must be connected to the destination port of a configured
SPAN/RSPAN. Any traffic that crosses the SPAN/RSPAN source ports is copied to the
SPAN/RSPAN destination port and consequently is seen by the VoIP Monitor service.
SPAN/RSPAN. Any traffic that crosses the SPAN/RSPAN source ports is copied to the
SPAN/RSPAN destination port and consequently is seen by the VoIP Monitor service.
Not all Catalyst switches allow the VoIP Monitor service to use the SPAN port for both
receiving and sending traffic. There are switches that do not allow normal network
traffic on a SPAN destination port. A solution to this problem is to use two NICs in the
machine running the VoIP Monitor service:
receiving and sending traffic. There are switches that do not allow normal network
traffic on a SPAN destination port. A solution to this problem is to use two NICs in the
machine running the VoIP Monitor service:
■
One NIC for sniffing the RTP streams, connected to the SPAN port
■
One NIC for sending/receiving normal traffic, such as requests from clients
and sniffed RTP streams, connected to a normal switch port not monitored by
the above-mentioned SPAN port.
and sniffed RTP streams, connected to a normal switch port not monitored by
the above-mentioned SPAN port.
There can be other reasons for using a second NIC dedicated to receiving RTP traffic.
The information shown below details the configuration of the second NIC to allow
CAD’s live monitoring and recording features to work properly.
The information shown below details the configuration of the second NIC to allow
CAD’s live monitoring and recording features to work properly.
Consult the Cisco Agent Desktop (CAD) and CTI Toolkit Desktop Silent Monitor —
Reference Information for the most recent information on compatible NICs. This
document is located at:
Reference Information for the most recent information on compatible NICs. This
document is located at: