Comtrend Corporation GCA-7000 User manual

GCA-7000
User Manual
Version A1.0. June 17, 2021
Version A1.0, June 17, 2021
261072-050

1
Preface
This manual provides information related to the installation and operation of this device. The individual
reading this manual is presumed to have a basic understanding of telecommunications terminology and
concepts.
If you find the product to be inoperable or malfunctioning, please contact technical support for immediate
service by email at INT-[email protected]
For product update, new product release, manual revision, or software upgrades, please visit our website
at http://www.comtrend.com
Important Safety Instructions
With reference to unpacking, installation, use, and maintenance of your electronic device, the following
basic guidelines are recommended:
• Do not use or install this product near water, to avoid fire or shock hazard. For example, near a
bathtub, kitchen sink or laundry tub, or near a swimming pool. Also, do not expose the equipment
to rain or damp areas (e.g. a wet basement).To safeguard the equipment against overheating,
make sure that all openings in the unit that offer exposure to air are not blocked. Avoid using a
telephone (other than a cordless type) during an electrical storm. There may be a remote risk of
electric shock from lightening. Also, do not use the telephone to report a gas leak in the vicinity
of the leak.
• Changes or modifications to this unit not expressly approved by the party responsible for
compliance could void the user authority to operate the equipment.
• Do not stack equipment or place equipment in tight spaces, in drawers, or on carpets. Be sure that
your equipment is surrounded by at least 2 inches of air space.
• If you experience trouble with this equipment, you disconnect it from the network until the
problem has been corrected or until you are sure that equipment is not malfunctioning.
WARNING ( ATTENTION )
nUnplug the power supply from the device before servicing
nFor indoor use only
nDo NOT open the casing
nDo NOT use near water
nKeep away from the fire
nFor use in ventilated environment / space
nDébranchez l'alimentation électrique avant l'entretien
nCet appareil est conçu pour l'usage intérieur seulement
nN'ouvrez pas le boîtier
nN'utilisez pas cet appareil près de l'eau
nN'approchez pas du feu
nVeuillez utiliser dans un environnement aéré
Power Specifications ( Alimentation ) :
Input 12Vdc, 1A

2
Copyright
Copyright©2021 Comtrend Corporation. All rights reserved. The information contained herein is
proprietary to Comtrend Corporation. No part of this document may be translated, transcribed,
reproduced, in any form, or by any means without prior written consent of Comtrend Corporation.
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General
Public License as published by the Free Software Foundation, either version 3 of the License, or (at your
option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not, see
http://www.gnu.org/licenses/
NOTE: This document is subject to change without notice.
Protect Our Environment
This symbol indicates that when the equipment has reached the end of its useful life, it must be
taken to a recycling centre and processed separate from domestic waste.
The cardboard box, the plastic contained in the packaging, and the parts that make up this Coax ADAPTER
can be recycled in accordance with regionally established regulations. When this equipment has reached
the end of its useful life, it must be taken to a recycling centre and processed separately from domestic
waste. Never dispose of this electronic equipment along with your household waste; you may be subject
to penalties or sanctions under the law. Instead, please be responsible and ask for disposal instructions
from your local government.

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Table of Contents
Chapter 1 Product Information .............................................................................................................................. 4
1.1 Front Panel ................................................................................................................................................... 4
1.2 Front Panel Buttons ...................................................................................................................................... 5
Chapter 2 G.hn/Coax Setup ................................................................................................................................... 6
2.1 Logging In ..................................................................................................................................................... 6
Chapter 3 G.hn Interface ........................................................................................................................................ 7
3.1 Basic Configuration ...................................................................................................................................... 7
3.2 NDIM Configuration ..................................................................................................................................... 8
3.3 Encryption Configuration via WEB UI ........................................................................................................... 8
Chapter 4 IP Interface ............................................................................................................................................ 9
4.1 IP config ....................................................................................................................................................... 9
Chapter 5 Ethernet Interface ............................................................................................................................... 11
Chapter 6 Device Interface .................................................................................................................................. 12
6.1 Hardware information ............................................................................................................................... 12
6.2 Software information ................................................................................................................................. 12
6.3 Security ...................................................................................................................................................... 13
6.4 SW update .................................................................................................................................................. 13
6.5 HTTP SW update ........................................................................................................................................ 13
Chapter 7 Multicast Interface .............................................................................................................................. 14
7.1 MCAST Configuration ................................................................................................................................. 14
Chapter 8 QoS Menu ............................................................................................................................................ 16
8.1 QoS Configuration ...................................................................................................................................... 17
Chapter 9 G.hn spectrum Interface ..................................................................................................................... 19
9.1 Notches ...................................................................................................................................................... 19
Chapter 10 Log file Interface ................................................................................................................................ 21
10.1 Log File ..................................................................................................................................................... 21
Chapter 11 TR069 ................................................................................................................................................ 22
Chapter 12 Advanced Interface ........................................................................................................................... 24

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Chapter 1 Product Information
1.1 Front Panel LED Indicators
LED
COLOR
MODE
Description
Power
Green
On
The G.hn Coaxial Adapter is powered on
Off
Off
The G.hn Coaxial Adapter is powered off or faulty
Connection
Green
On
The current connection (line rate) is more than 40Mbps
Orange
On
The current connection (line rate) is between 5Mbps
and 40Mbps
Red
On
The current connection (line rate) is less than 5Mbps
Off
Off
A connection does not exist
Security
Green
On
The adapter is secure
Blink
The adapter is in the process of being secure
Off
The adapter is not secure
Ethernet
Green
On
An Ethernet LAN connection is established
Blink
Data over the Ethernet LAN connection is being
transmitted
Off
Off
An Ethernet LAN connection is not established

5
1.2 Front Panel Buttons
Security
Press for more than 2 seconds for enabling data encryption
in GCA-7000’s. Please refer to GCA-7000_QIG.pdf for
details.
Reset
Press for less than 10 seconds to reset the device.
Press for more than 10 seconds to restore factory defaults.

6
Chapter 2 G.hn/Coax Setup
2.1 Logging In
Perform the following steps to login to the web user interface.
STEP 1: Start the Internet browser and input the default IP address for the device in the Web address
field. For example, if the default IP address is 192.168.0.5, type http://192.168.0.5
STEP 2: A dialog box will appear, such as the one shown below. Input the default Authentication
Password.
Authentication Password: admin
Click the OK button to continue.
Note:
The Factory Reset password is: betera

7
Chapter 3 G.hn Interface
3.1 Basic Configuration
• MAC Address Displays the MAC address of the device.
• Device ID Device ID of this node.
• Domain Name string of all nodes in the network.
• Force node Type force the modem to have a particular role (END POINT or DOMAIN MASTER or
AUTOMATIC)
• Node Type Shows the current status of the device.
• G.hn profile of all nodes in the network: select which G.hn profile that must be applied to the network
(COAX 100MHz and COAX 200MHz).

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3.2 NDIM Configuration
• NDIM mode set to Automatic for enabling automatic DOD selection functionality and set to Manual
for manual configuration of DOD.
• Domain ID (DOD) manually set the DOD number from 1 to 15 to use a different preamble seed than
the default 0.
3.3 Encryption Configuration via WEB UI
• Pairing Password used for authentication. Write a custom password to manually create a secure
domain.
Available Connections
• In this tab table, all the available G.hn connections are presented. Remote node DID and MAC address;
transmission and reception physical speeds.

9
Chapter 4 IP Interface
4.1 IP config
In the IP configuration tab of one G.hn node, the IPv4 and IPv6 settings can be read and changed.
IPv4 subsection:
• DHCPv4 enabled: in the case of choosing ”NO" IP configuration in the following parameters, the IPv4
Address, Subnet Mask, Default Gateway and DNS should be configured; fill these fields in. In the case
of choosing “YES” they will be filled automatically when the configuration is received from the DHCPv4
server.

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• IPv4 address/netmask: IPv4 address / netmask of this device.
• Default Gateway: IPv4 gateway to connect the device to other LAN segments.
• DNS: Domain Name Server IP (IPV4).
• Additional address #1/2: additional fixed IPv4 addresses that will always be configured at boot time.
IPv6 subsection:
• DCHPv6 enabled: in the case of choosing ”NO" IP configuration in the following parameters, the IPv6
Address, prefix, Default Gateway and DNS should be configured; fill these fields in. In the case of
choosing “YES” they will be filled automatically when the configuration is received from the DHCPv6
server.
• IPv6 Address / prefix: IPv6 address / prefix of the device to read the node's DHCPv6 address in case
the DHCPv6 is enabled.
• Default Gateway: IPv6 gateway to connect the node to other LAN segments.
• DNS: Domain Name Server IP (IPV6).
• Additional address #1/2/3/4: additional fixed IPv6 addresses that will always be configured at boot
time.
• IPv6 Link-Local Address: to read the node's Link Local address.
• IPv6 SLAAC address: IPv6 address, automatically obtained by means of the SLAAC mechanism.
NTPv4/v6 subsection:
• NTPv4/v6 client enabled: Enable/disable NTP client.
• Resynchronization time: Configure re-synchronization interval time in minutes.
• NTP IPv4/v6 address: Hostname or IP (IPv4 or IPv6) of NTP server.

11
Chapter 5 Ethernet Interface
The Ethernet table shows the status & Info of the Ethernet interface; including Interface, Speed, Duplex,
Interface Type, Mode, and Internal PHY & Link.
Powersaving
Ethernet powersaving can be disabled, enabled by Ethernet link or enabled by Ethernet activity; idle timer can
be configured as well.

12
Chapter 6 Device Interface
6.1 Hardware information
In this tab, basic information such as MAC Address and Serial Number of the selected node is shown.
6.2 Software information
Shows the FW version and system uptime.

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6.3 Security
The nodes in the network: to change the configuration password string from the default ("admin") to another;
decided by the user.
6.4 SW update
Current loaded firmware version is shown. Any flash section can be upgraded; the first flash section should be
selected and after clicking on the "OK" button the corresponding file should be chosen. Usually, a reboot
should be performed afterwards to make sure the changes are effective.
The protocol is by FTP client or TFTP client. L2 is proprietary and is reserved for future use.
6.5 HTTP SW update
STEP 1: Enter the path and filename of the firmware image file in the Software File Name field or click
the Browse button to locate the image file.
STEP 2: Click the OK button once to upload and install the file.
NOTE1: The update process will take about 2 minutes to complete. The device will reboot and the
browser window will refresh to the default screen upon successful installation. It is
recommended that you compare the Software Version on the Device Interface screen with the
firmware version installed, to confirm the installation was successful.
NOTE2: The Power LED indicates the status of firmware update progress. Please DO NOT power off the
device when Power LED is flashing or the device will be damaged.

14
Chapter 7 Multicast Interface
7.1 MCAST Configuration
In the MCAST Configuration tab of "My Network", IGMP snooping and MLD features can be enabled or
disabled. Also, IGMP multicast IP addresses ranges which the G.hn PLC network will sniff; can be configured.
• IGMP Snooping: Enable or Disable.
• MLD Snooping: Enable or Disable.
• IGMP/MLD broadcast report (allowed): set to NO for enabling reports dropping until the video source
is detected, this is a recommended setting when IGMP/MLD is enabled. Set to YES for broadcasting
reports until the video source is detected; this implies the multicast video stream is sent as broadcast
and it is the recommended state when IGMP/MLD is disabled.
• IGMP/MLD broadcast report mode: Report broadcast forwarding behavior when the
MCAST.GENERAL.REPORT_BROADCAST_ALLOWED is enabled.
- If 0 then broadcast reports only when the video source is unknown.
- If 1 then broadcast reports always.
- If 2 then broadcast reports always if IGMPv3 and only when video source is unknown in others.
The term 'video source' refers to the node whose Ethernet port is connected directly to the Home Gateway.

15
• Filter unknown multicast traffic: Enables the Multicast Filtering feature.
If enabled, all the unsolicited multicast traffic will be blocked.
In IPv4 multicast traffic, only the traffic between the IP ranges defined in the
MCAST.GENERAL.IGMP_IP_RANGES_DEF and the packets are unsolicited, these packets will be
dropped.
Warning: This feature implies a higher CPU load, so it is advisable to enable it only in the Video Source.
Only 100 Kbps of broadcast traffic could be managed in this mode.
IGMP Multicast ranges configuration: 4 multicast IP address ranges can be configured defining the minimum
and maximum IP addresses of each range. Only multicast traffic within these ranges will be processed.
Broadcast Suppression: Maximum throughput allowed without suppressing broadcast traffic. The accuracy of
this parameter depends on size of packets (big packets -> more accuracy). Value 0 deactivates this
functionality.

16
Chapter 8 QoS Menu

17
8.1 QoS Configuration
In the QoS configuration tab, the packet classifier can be managed to define a QoS rule for incoming Ethernet
traffic, and assign a priority to be used in the G.hn network. Press the “Ok" button to load the newly
configured settings:
• QoS CRITERION: a general criterion can be chosen among "None" (no QoS), "Custom" and "802.1p".
• Type of Frame: with this parameter the type of Ethernet traffic being transmitted by the G.hn network
should be selected. Based on this parameter, the internal offsets in the system are adjusted. In the
QoS tab, Ethernet frame offsets should set a counting number as they appear in the sniffer SW (for
instance, the same field will be in a different position if normal Ethernet frames or 802.1Q tagged
frames exist).
• Packet detection 1: first packet detection rule can be configured (offset, bitmask and pattern). Packets
which accomplish it will be sent to the classification module.
• Packet detection 2: if second packet detection is also enabled, both, first and second detection criteria
must be accomplished to pass packets to the classification module.
• Packet classification: up to 8 classification rules can be defined in this section for packets which have
previously been correctly detected. For 802.1p only priorities can be managed, offset, bitmask and
pattern are predefined to sniff the PCP field.
• Default priority: select default priority; which will be applied to non classified incoming packets.
Priority 7 is the highest. Priority 0 is the lowest.
• TCP Ack Class in IPv4: Mapping TCP ACK (IPv4) to a Class Value.
• TCP Ack Class in IPv6: Mapping TCP ACK (IPv6) to a Class Value.
• ARP Class: Mapping ARP to a Class Value.
• DSCP Class: Mapping of each DSCP value to a Class Value.
As shown above, if QoS criterion: DSCP, all other options are grayed out, and follow the QoS rules below.
According to G.9960 specs, the priority mapping recommended by [IEEE 802.1D] sub clause 7.7.3 is presented
in Table III.1. for four priority queues.
PCP
Priority
Acronym
Traffic Types
1
0 (Third)
BK
Background
0
1 (lowest)
BE
Best Effort
2
2 (lowest)
EE
Excellent Effort
3
3 (Third)
CA
Critical Applications
4
4 (second)
VI
Video, < 100 ms latency and jitter

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5
5 (second)
VO
Voice, < 10 ms latency and jitter
6
6 (highest)
IC
Internetwork Control
7
7 (highest)
NC
Network Control
In summary, the sequence of priority queue, (7,6) > (5,4) > (3,0) > (2,1)

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Chapter 9 G.hn spectrum Interface
9.1 Notches
In this tab a table with all configured Notches of selected node will be shown. The table is composed of next
columns for every notch: Notch Number, Type of notch, Start Frequency (KHz), Stop Frequency (KHz), Depth
(in dB).
The first 13 notches (Regulation) are Read Only, RO, in the system and they can be neither removed nor
modified. The next 40 notches (Vendor) are defined by the vendor using SDK and they are also RO. The last 10
notches (User) are R/W and they can be added/removed by user using this tool.