SVSi N-Series Pre-implementation - Manual (Page 9)

9 Networked AV Pre-Implementation Guide www.svsiav.com
3.2 Installation Over an Existing Network
Legacy network equipment may or may not be fully gigabit-enabled. Even though most appliances on a network are
gigabit, it only takes one 100-baseT switch or router within the video pathway to degrade or block the signal completely. If
you are unsure of your network appliances or configuration, contact your network administrator before trying to implement
a Networked AV solution on your network.
Even if a particular network is gigabit-enabled, installing Networked AV components can cause excessive amounts of video
packets to overwhelm a network segment, VLAN, or appliance depending on the background traffic level. This can
adversely affect other users on the network and must be avoided. Contact your network administrator before installation to
determine traffic levels. N-Able software allows each encoder's video stream to be turned off before connecting to an
existing network. Once connected, encoders can be turned on one at a time to determine network impact. SVSi strongly
recommends that all encoders be turned off and variable bit-rates set as low as possible before connecting to an existing
network.
The diagram above illustrates how Networked AV products can be installed on an existing layer-2 network over a dedicated
VLAN separate from voice and data traffic while using an organization's existing infrastructure.
The following steps can be taken (at the discretion of your network administrator) to facilitate integration with an existing
network:
• Ensure current ACLs (Access Control Lists) are not filtering multicast or control traffic.
• Remove Flow Control and/or Storm Control on any network port passing the video stream.
• Enable IGMP querying and snooping on all supported network switches.
• Enable VLANs to separate video traffic from data and voice.
• Allow multicast traffic on all network ports through which video streams pass.
• Reduce the variable bit-rate for each video stream in N-Able to obtain the lowest bandwidth at acceptable video
quality.
• Reduce frame-rate 2x in N-Able software.
• Turn all encoders off in N-Able when not in use. Encoders can be scheduled to turn on and off within the software.
• Upload slide-show content to LocalPlay and display this locally-stored content when possible.
• Manually enter devices by MAC address to prevent N-Able from sending out broadcasts to locate. For a large
number of devices during setup, a CSV file can be imported/exported using N-Able.
Any or all of these items can help integrate your video onto an existing network.