TDMoIP
®
Gateway
IPmu
-11
TDMoIP PERFORMANCE
• IPmux-11 provides a legacy over
Ethernet/IP solution supporting
transmission of E1/T1 streams over
IP and Ethernet-based networks.
IPmux-11 converts the data
stream from its user E1/T1 port
into packets for transmission over
the network. The addressing
scheme of these packets is IP or
MPLS. These packets are
transmitted via the IPmux-11
Ethernet link port to the network.
A remote IPmux converts the
packets back to TDM traffic.
• High-performance buffering and
forwarding techniques are used to
achieve end-to-end processing
delay as low as 3 msec.
• Packet size is configurable. A
greater packet length results in
greater processing delay, yet
smaller bandwidth overhead is
achieved.
• An enhanced buffering
mechanism compensates for
packet delay variation (jitter) of up
to 300 msec in the network.
• Assigned, IANA-registered UDP
socket number for TDMoIP
simplifies flow classification
through switches and routers.
TDMoIP QoS SUPPORT
• IPmux-11 supports VLAN tagging
and priority labeling according to
802.1p&Q. TDMoIP frames are
assigned (tagged) a dedicated
VLAN ID.
• The ToS or Diffserv of the
outgoing TDMoIP frames are
user-configurable. This allows the
TDMoIP packets to be given a
higher priority by the network
switches and routers.
TDMoIP TIMING
• Synchronization between TDM
devices is maintained, by
deploying advanced clock
distribution mechanisms. The
clocking options are:
Internal – the master clock
source for the TDM circuit is
provided by the IPmux-11
internal clock oscillator
Loopback – the transmit clock is
derived from the E1/T1 port’s
receive clock
Adaptive – the clock is
recovered from the Ethernet
network interface
External – an external clock
source to synchronize the device
via its station clock port.
ETHERNET INTERFACE
• IPmux-11 supports the following
Ethernet ports:
One network port (UTP or fiber
optic)
Two user ports (both UTP or
UTP and fiber optic).
• The network and user ports
provide autonegotiation, VLAN
tagging and rate limiting.
TDM INTERFACE
• One standard E1 or T1 port
provides connectivity to any
standard E1 or T1 device.
• E1 and T1 interfaces support the
following:
Integral LTU/CSU for long haul
applications
E1 balanced and unbalanced or
T1 options
G.703 unframed and G.704
framed modes
CAS and CRC-4 bit generation
(E1)
D4/SF and ESF framing (T1).
Figure 1. LAN and TDM Services over a Fiber Optic Ethernet Link
APPLICATIONS
Order from: Cutter Networks
Ph:727-398-5252/Fax:727-397-9610
(148 páginas)
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