4KPROIP
User Manual
16
Recommend Network Switch
The aegis AV Over IP Series will work with most non-blocking, IGMP 10G network switch. Layer 3 will
allow more controllability; however, Layer 2 will work fine as well. It is highly recommended to
communicate with the representative of the desired network switch brand to confirm configuration
and capabilities. Below are some models that have been tested with the aegis 4KPROIP Series.
Switch Speed
The 4KPROIP Series requires the switch to be a 10GbE.
4KPROIP Series technology is used to transmit uncompressed video up to 4K along with other AV
signals such as audio, USB and control signals. For video alone, the raw bandwidth is about 4Gb/sec
for HD; and 8Gb/sec for 4K. Therefore it is obvious to understand why 4KPROIP series require 10GbE
network switches.
Packets Routing
To enable the transmission of a source to multiple destinations, aegis 4KPROIP series devices make
use of Multicast. The default behavior of layer 2 Ethernet switch is to broadcast those packets
which mean that every packet will be transmitted to all possible destinations. Therefore, any
network switch used with 4KPROIP Series must support IGMP Snooping. 4KPROIP-CAT series
endpoints use IGMP protocol to assign the endpoints into multicast groups and the router uses
IGMP snooping to route multicast packets efficiently to receivers that want to receive them.
Many switches have the IGMP Snooping feature disabled by default and manual configuration is
required. Often, a simple checkmark near “Enable IGMP Snooping” is the only thing needed to enable
IGMP Snooping.
However, the implementation of IGMP Snooping is vendor specific and additional configuration is
often needed.
An Ethernet switch can be informed that a device wants to leave a multicast channel by sending it an
IGMP LEAVE GROUP packet. Once received, the time it takes for the switch to apply the new
configuration may vary from one switch to another. Most switches implement and include FASTLEAVE
configuration option. When enabled, it takes much less time for a particular port to leave a multicast
group to assign the port to a different multicast group. The end results are a noticeably shorter video
switching time. aegis recommends that always enable the FASTLEAVE option when it is available.
With the FASTLEAVE option, seamless switching is possible for 4K video sources. Without FASTLEAVE
option, 'seamless' switching is limited to 1080P 60 Hz video signals.