Chapter 1: Description and Requirements
Chapter 1: Description and Requirements
The E3Switch WAN Monitor described herein allows HDLC/PPP packets on a T3/DS3/E3 WAN to be
easily monitored/recorded via output to an Ethernet port. Inline capability alleviates the necessity for
additional WAN tap-hardware. Dual WAN inputs allow monitoring of WAN traffic in each direction.
Fanless operation and extremely low part-count design allows use with greater reliability and in harsh
environments. All units are rack mountable. NEBS Level 3 multicard chassis with redundant power are
available.
Single or dual LAN output is available in a variety of RJ45 or SFP copper or optical formats at either
100Mbit or GbE/GigE rates depending upon software options purchased. Jumbo 9600-byte frame size is
available. If purchased, the second LAN port is available for out-of-band management. An appropriate
SFP transceiver must be supplied if the second SFP LAN port is to be used.
Management functions include both comprehensive SNMP statistics with link up/down and DS3 FEAC
notifications as well as one-click HTTP, user-friendly, color-coded monitoring of link operational status and
bit-error rate. Both HTTP and SNMP management of the Monitor is possible either in-band through the
same LAN port as data being recorded or out-of-band if the software option to enable the second LAN port
has been purchased.
The WAN circuit being monitored may contain CRC-16/32 or no CRC encoding. The WAN circuit may be
framed or unframed, but must contain no T1/E1 channels (unchannelized). X43 scramble decoding is
available..
LAN output is typically sent to a recording device. LAN packet format is specified by the user at the layer-
2 level. MAC header, VLAN, Ethertype, MPLS and pseudowire control word are all manually specified in
the unit's configuration settings.
For ease of installation, the Monitor does not require a configuration setup and will typically work
immediately upon connection of LAN and telecom cables. Some modification of default IP management
addresses or header output for data recording would typically be desired.
The hot-swappable Monitor card may be purchased in standalone or multi-card chassis and draws a minimal
6 watts of power. Standalone, single units ship in high-reliability, fan-free 1U chassis with rackmount
brackets and are available in a 100-240VAC or a
±35-
75 volt DC models. NEBS-III, redundant-power
multicard chassis are available in 6-slot/1U and 20-slot/3U versions.
Chapter 2: Quick Set-up
Attach the WAN Monitor to a power source. The front panel lights should illuminate. Green is normal;
orange indicates an error.
Depending upon the LAN options purchased, HTTP/SNMP management of the unit may be through either
RJ-45 LAN Port 2 or through the SFP LAN port. Likewise, WAN data to be recorded may be output
through either LAN port. These LAN port assignments are found in the HTTP settings web screen of the
unit. Typically, the default configuration has the RJ-45 port assigned to the data recording device and the
management interface through the SFP port if purchased or the same RJ-45 port if not.
Attach an Ethernet UTP5 cable from your LAN equipment to the desired LAN port. The Monitor can
perform automatic MDIX cross-over vs. straight-through cable adaptation. The monitor's LAN light will
change from orange to green if a properly negotiated link has been established.
The network equipment
attached to the LAN port of the Monitor should be set for autonegotiation mode in order to allow the
Monitor to negotiate a 100Mbit full-duplex connection.
Disabling autonegotiation or using old LAN
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