AVN422HD User’s Manual
Chapter 3 Connecting to the Network
9
Without IGMP Querying/Snooping, Multicast traffic is treated in the same manner as a Broadcast
transmission, which forwards packets to all ports on the network. With IGMP Querying/Snooping,
Multicast traffic is only forwarded to ports that are members of that Multicast group. IGMP
Snooping generates no additional network traffic, which significantly reduces the Multicast traffic
passing through your switch.
If your network distribution core does not support IGMP Querying/Snooping, the AVN streams
will still function as designed but your network may be subjected to high traffic loads and
condensed collision domain due to the broadcasting action used by the older switch or hub. If this
is the case, you may wish to isolate the streaming nodes within the network so that the streams
may be viewed without crossing the normal network traffic along its path.
Otherwise, for a general performance improvement, you may consider upgrading your network
core to a switch that is Multicast aware.
3.3 DHCP IP Configuration
The AVN422HD has Dynamic Host Configuration Protocol (DHCP) enabled as the factory
default. If your network has a DHCP server on it, the AVN422HD will automatically acquire an IP
address. If the AVN422HD is not able to find a DHCP server, it will default to the IP Address,
Subnet Mask and Gateway that are configured into the unit. The factory default IP address is
192.168.1.253.
To disable or enable DHCP on the AVN422HD, use either the Console Interface (refer to section
) or the Browser Interface (refer to section
6.5.3 Device Network
).
To assign a static IP address for the AVN422HD, refer to the following section.
3.4 Static IP Configuration
If the AVN422HD is not able to find a DHCP server, it will default to the IP Address, Subnet Mask
and Gateway that are configured into the unit. The factory default is 192.168.1.253.
It is strongly recommended that the AVN422HD be statically configured to a specific IP address.
This enables the AVN422HD to be consistently found at the same address. Prior to statically
configuring the AVN422HD, check with your IT department and/or make sure the IP address to
be assigned is not in use by any other device on the LAN.
To assign a static IP address to the AVN422HD, follow these steps:
1. Power on the AVN422HD blade and connect the console (light blue) and the network cables.
2. Run a terminal emulation program such as HyperTerminal or Minicom to communicate via
console (refer to section
5.1 Connecting With a HyperTerminal Session
). Use the following
communication parameters: Bits per second (38400), Data bits (8), Parity (None), Stop bits
(1), Flow Control (None).
3. Press
Enter
to get the login prompt.
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