 |
Governing
the WAN bandwidth utilized by an Ethernet LAN enables the reservation
of WAN bandwidth
for time sensitive real time connections such as those required
by Video Conferencing, Voice Over IP and T1/E1 Over IP applications.
Rate Governing is applied in one direction to minimize latency.
The traffic from the non real time LAN is
data rate limited. The traffic from the WAN is bridged to the
non real time LAN without passing through
the data rate limiter.
The LAN·GOV isolates the real time critical
application data from traffic overloading which can cause
process saturation. The traffic that is forwarded is limited to
only the traffic that is destined for the
remote location by a standards based spanning tree bridging protocol. |
 |
| Wireless
Ethernet |
Wireless
Ethernet bridges typically do not implement a method to ensure
that the real time connections
have priority. The LAN·GOV provides a straight forward
method to ensure real time data delivery across
wireless links. |
| Wide
Area Networks |
| Enterprises,
Education, Government Agencies and Organizations are able to deploy
LAN·GOVs to restrict network segments utilization of Wide
Area Network Bandwidth. |
| Service
Providers |
| Unrestricted
Ethernet connections provided by networking service providers enable
subscribers to overburden the Service Providers network. The LAN·GOV
enables service providers to limit a subscriber to a committed information
rate. |
| Governing
Data Rate Versus Quality of Service |
Quality
of Service
Quality of service in complex networks is cumbersome. QOS needs
to be performed at each transitions from high to lower bandwidth
in the packet path. Access to routers or switches in the link that
are maintained by different organizations can be restricted. |
Data
Rate Governing
Governing general traffic bandwidth is straight
forward and easy to implement. Data rate configuration is setup
at each end of the link to guarantee the real time data rate requirements. |
|
Transparent
Interconnect |
The
LAN·GOV transparently monitors all the packet
traffic on each of its LAN segments to determine
whether the packets it receives are to be forwarded. The Ethernet
MAC layer source addresses that are
active on each LAN are stored in a filtering database. Packets with
a MAC destination that do not match a MAC address entry for the
receiving port are forwarded. |
| Ease
of Installation |
To
be operational the LAN·GOV requires the
configuration of the data rate. Configuration is performed
through a Command Line Interface that is accessed through a console
port or with Telnet. |
| Technical
Specifications |
LAN
Network Interface:
• 10/100 BaseT Ethernet Port
• Auto-negotiate or Configured
Speed/Duplex
LAN Network Protocols Supported:
• IP, TCP, ICMP
TFTP Online Upgrade Capable
• Fully operational during upgrade |
Management:
• Telnet with Edit and Paste Templates
• Console Port for Out of Band Management
• SNMP support (MIB I, MIB II)
• Remote configuration, monitoring, & reset
Regulatory:
• Safety -IEC60950
• EMC - CFR 47 Part 15 Sub Part B:2002
• CE |
Power:
• 12-24 VDC 1.0A
• International Adapter
• Optional -48V 0.25 Amp
Dimensions:
• 9" (L) x 7" (W) x 1.50" (H) |
|
| How
to Order |
| Part
No. |
Description |
Notes |
| 040-1045 |
LAN•Gov |
|
| -ROHS |
ROHS compliant materials and processes
|
Restriction of Hazardous Substances no Pb |
| Power
Options |
|
Specify
as suffix |
| -DCMOD |
Power
Supply Module 12/26 VDC ADP CON |
Ships
with Universal Adapter 90/240 50/60 |
| -WIREDC |
Power
Supply Module 12/26 VDC Screw Term |
|
| -N48VDC |
Power
Supply Module Negative 48 Volt DC |
Isolated
Negative 48 Volt Power |
| |
Hot
Standy Configuration |
Specify
an additional Power Module Suffix |
| Rack
Mount Option |
|
Specify
as suffix |
| -RACKMNT |
19"
Wide Rack Mount Brackets |
Enclosure
Nut Serts Installed |
|
