TDMoIP Gateway
IPmu
-16
Figure 1. Extending E1/T1 or E3/T3-based Services over IP
• IPmux-16 takes data streams from
up to sixteen E1/T1 or up to two
E3/T3 ports and converts them
into packets for transmission over
the network (see Table 1). The
addressing scheme of these
packets is IP. The frames are
transmitted via the Ethernet
modules to the network. A second
TDMoIP gateway at the remote
location converts the IP packets
back to TDM traffic.
• The primary benefit of IPmux-16
is to allow transparent E1/T1 and
E3/T3 connectivity over Layer 2/3
packet networks, both in carrier
and enterprise environments
• IPmux-16 is a standard IP device,
supporting ICMP (ping), ARP,
next hop and default gateway
capabilities.
• IPmux-16 complies with the
TDMoIP protocol, working in
conjunction with IPmux-1,
IPmux-1E, IPmux-8,
Megaplex-ML-IP,
Kilomux KML.11, and other
third-party products that
implement the TDMoIP protocol.
• IPmux-16 features a dry contact
alarm port that can serve as a
general-purpose input port. The
alarms are classified into three
categories, stored in the event log,
and can generate a system trap
that is sent to the NMS.
PERFORMANCE
• IPmux-16 can achieve end-to-end
processing delay as low as
1.7 msec, using high-performance
buffering and forwarding
techniques.
• IP packet size is configurable.
Greater packet length results in
greater processing delay, yet a
smaller bandwidth overhead.
• An enhanced buffering
mechanism compensates for
packet delay variation (jitter) of up
to 32 msec for E1, 24 msec for T1,
and 20 msec for E3/T3.
QOS SUPPORT
• IPmux-16 supports VLAN tagging
and priority labeling according to
802.1 p&Q.
• User traffic VLAN-based
separation is supported by
applying a dedicated VLAN tag to
every TDMoIP circuit, and a
dedicated VLAN for managing the
device.
• Type of Service (ToS) of the
outgoing IP frames is
user-configurable. This allows an
en-route Layer-3 router or switch,
which supports ToS (or Diffserv),
to give higher priority to IPmux-16
traffic for delay-sensitive
applications.
APPLICATIONS
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