Cisco Cisco Agent Desktop 8.5 Guia De Configuração Rápida
Introduction
November 2013
47
Network Traffic Restrictions on Destination Ports
Issue: Some switches do not support normal network traffic on SPAN destination
ports.
ports.
Normally, a computer or phone connects to a switch port and that port is used to send
and receive data from the network. On some switches, a port used as a destination of
a SPAN configuration cannot be used to send or receive network traffic (other than
the traffic sent to the port by the SPAN configuration). When this is the case, the VoIP
server must use two NICs; one for normal network traffic, and a second for receiving
copied packets from the SPAN configuration. Each NIC is connected to a different port
on the switch. The VoIP software is told which NIC to use for capturing audio packets
from the SPAN configuration.
and receive data from the network. On some switches, a port used as a destination of
a SPAN configuration cannot be used to send or receive network traffic (other than
the traffic sent to the port by the SPAN configuration). When this is the case, the VoIP
server must use two NICs; one for normal network traffic, and a second for receiving
copied packets from the SPAN configuration. Each NIC is connected to a different port
on the switch. The VoIP software is told which NIC to use for capturing audio packets
from the SPAN configuration.
If there is a reason why the VoIP server cannot contain more than one NIC, then the
VoIP server cannot be connected to this switch in order to support monitoring or
recording. It will need to be connected to a switch that does support both SPAN and
normal network traffic on the SPAN destination port, or another capture method such
as desktop capture must be used.
VoIP server cannot be connected to this switch in order to support monitoring or
recording. It will need to be connected to a switch that does support both SPAN and
normal network traffic on the SPAN destination port, or another capture method such
as desktop capture must be used.
The switches that do not support normal network traffic on SPAN destination ports are
shown in
shown in
.
Switch Operating System Version
Issue: Some SPAN-related abilities depend on the IOS version.
We have shown many switch capabilities related to SPAN configurations, and these
are largely dependant upon the switch model, but switches are computing devices
and run operating systems that change and increase in functionality over time.
Certain features, such as SPAN, were not available on some switches at one point in
time. As their operating system software was improved, this feature was added. The
information shown in
are largely dependant upon the switch model, but switches are computing devices
and run operating systems that change and increase in functionality over time.
Certain features, such as SPAN, were not available on some switches at one point in
time. As their operating system software was improved, this feature was added. The
information shown in
related to switch capabilities is accurate for the
latest OS versions available for those switch models. If a customer has a switch with
an older operating system, a particular feature related to SPAN might not exist even
though it is shown as being available in
an older operating system, a particular feature related to SPAN might not exist even
though it is shown as being available in
www.cisco.com
).