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Chapter 2: Quick Set-up
Attach an Ethernet UTP5 cable from the PPPoE LAN port on your equipment to the RJ-45 LAN Port 2 of
the converter. The converter can perform automatic cross-over vs straight-through cable adaptation. The
LAN 2 light will change from orange to green if a properly negotiated Ethernet link has been established,
but does not indicate PPPoE connection status. The network equipment attached to the LAN port of the
converter should be set for autonegotiation mode in order to allow the converter to negotiate a
100Mbit full-duplex connection. Disabling autonegotiation or using old LAN equipment may result in the
attached LAN equipment configuring to half-duplex mode, resulting in CRC errors and packet loss. Refer
to the interoperability section of this document for more information. To support PPPoE packets greater
than 1500-bytes, the LAN connection must be GbE/GigE/1000BaseTX rate.
Typically, set the PPPoE LAN port speed to GigE 1000Mbit/s to allow packet-lengths greater than 1500-
bytes and up to 9600 bytes. Set the management LAN port speed to 100BASE-TX to avoid DMA
underflow/overflow errors of the converter.
Attach two 75-ohm coaxial cables from either the Port 1 or Port 2 BNC connectors of the converter to the
input and output connectors of your E3 or DS3 link. Once each converter is receiving a valid signal from
the remote partner, the DS3/E3 Port LED will change from orange to green. This indicates that the
converter has achieved proper sync lock with the remote ISP, but does not indicate PPP session status or
proper settings of CRC-length or scrambling or framing.
Log in to the HTTP interface of the unit and set the CRC-length, scrambling, framing-type for the DS3 link.
Refer to the management chapter of this manual for HTTP connection instructions. If these values have not
been provided by the ISP, simply trying different combinations and monitoring the HTTP or SNMP error
status counters of the unit will typically suffice.
At the bottom of the administration page, decide which LAN ports you intend for PPPoE data and which for
HTTP/SNMP management of the converter and set appropriately. This is not mandatory, but you will see
some management packets on the PPPoE LAN if that LAN port is not set for PPPoE only.
Connect the PPPoE LAN port of your local host or router to the E3Switch converter. The user-name and
password for your PPPoE are provided by the ISP and are not relevant to the converter; however the
session-name for the PPPoE connection must be blank or empty.
The HTTP status screen of the converter will indicate whether the PPPoE connection is active or
unconnected. PPPoE packet exchange is indicated in the log found at the bottom of the HTTP settings
screen. If the packet exchange appears valid but the link is terminated shortly thereafter, ensure that your
PPPoE equipment's setting for username, password and IP address (fixed vs. DHCP) are correct. All can
terminate a PPPoE session shortly after initiation. A valid PPPoE connection handshake appears as follows:
Event age, most recent first...
days
h:m:s
Age
0d
0:00:02> DS3/E3 Ports OK
Age
0d
0:00:03> PPP is UP - session ID 0xa1b5
Age
0d
0:00:03>
Age
0d
0:00:03> PPP PADR msg received from 00:13:46:88:09:3e
Age
0d
0:00:03>
Age
0d
0:00:03> PPP PADI msg received from 00:13:46:88:09:3e
Age
0d
0:00:03> SFP LAN Port1: UP
Age
0d
0:00:04> 8P8C LAN Port2: UP
Refer to the management chapter of this manual if HTTP or SNMP operating statistics are desired or to
change the default administrator password. Changing the default password is highly recommended to
allow ongoing configuration changes. When the password has not been changed from default,
configuration changes are prohibited for security reasons after 5 minutes after any new power cycle.
Simply power cycle again to change the password – if the unit is still in your possession and the link is
not passing important data.
There is no further configuration or setup required for the converter.
event
Sending PADS session confirmation
Sending PADO offer on 8P8C LAN Port2
7
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