ZyXEL Communications GLC1320G-55 User manual

Quick Start Guide
www.zyxel.com
GLC1320G-55
Fiber-based, Gigabit Ethernet Line Card
Version 4.02
Edition 1, 6/2013
Copyright © 2013 ZyXEL Communications Corporation
User’s Guide

GLC1320G-55 User’s Guide2
IMPORTANT!
READ CAREFULLY BEFORE USE.
KEEP THIS GUIDE FOR FUTURE REFERENCE.
Screenshots and graphics in this book may differ slightly from your product due to differences in
your product firmware or your computer operating system. Every effort has been made to ensure
that the information in this manual is accurate.
Related Documentation
• IES-5106M, IES-5112M, IES-6000M User’s Guides
Refer to the IES-5106M, IES-5112M, IES-6000M User’s Guide for directions on installation,
connections, maintenance, hardware trouble shooting and safety warnings.
• MSC1024GB and MSC1224GB Management Switch Card User’s Guides
These user’s guides cover the configuration of your IES-5000 or IES-6000. Refer to these user’s
guides for information on your GLC1320G-55’s default settings.
•ZyXELWebSite
Please refer to www.zyxel.com for additional support documentation and product certifications.

Contents Overview
GLC1320G-55 User’s Guide 3
Contents Overview
Introducing the GLC1320G-55 ..................................................................................................................7
Product Specifications .............................................................................................................................15
Troubleshooting ......................................................................................................................................19

Contents Overview
GLC1320G-55 User’s Guide
4

Table of Contents
GLC1320G-55 User’s Guide 5
Table of Contents
Contents Overview ..................................................................................................................3
Table of Contents .....................................................................................................................5
Chapter 1
Introducing the GLC1320G-55.................................................................................................7
1.1 GLC1320G-55 Overview ........................................................................................................7
1.2 Features .................................................................................................................................7
1.3 Front Panel ..........................................................................................................................12
1.4 Ports and LEDs ....................................................................................................................13
1.4.1 Ports ...........................................................................................................................13
1.4.2 LEDs ..........................................................................................................................13
Chapter 2
Product Specifications...........................................................................................................15
2.1 Product Specifications ..........................................................................................................15
2.2 Firmware Naming Conventions ............................................................................................17
2.3 Console Cable Pin Assignments ..........................................................................................17
Chapter 3
Troubleshooting......................................................................................................................19
3.1 Power and LEDs ..................................................................................................................19
3.2 Data Transmission ...............................................................................................................20
3.3 Local Server .........................................................................................................................20
3.4 Management and Configuration ...........................................................................................21
3.4.1 Uploading the Default Configuration File via Boot Commands ..................................21
3.4.2 Uploading the Firmware via Boot Commands ............................................................22
Appendix A Legal Information................................................................................................25
Index ........................................................................................................................................29

Table of Contents
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GLC1320G-55 User’s Guide 7
CHAPTER 1
Introducing the GLC1320G-55
1.1 GLC1320G-55 Overview
The GLC1320G-55 is a Gigabit Ethernet Line Card with 20 SFP slot connector slots for fiber-based
SFP (mini-GBIC) transceivers (16 for SFP transceiver and 4 for CSFP/SFP). It connects through
fiber-optic cables to other Ethernet switches that support fiber connections (like the FSG1100HN,
GS2200-8 or FMG3024/3025) located at the subscriber’s premises.
Figure 1 GLC1320G-55 Overview
The GLC1320G-55 supports various SFP transceivers to satisfy a wide range of loop length
requirements (see Table 3 on page 15 for details).
The GLC1320G-55 lets you easily implement high-speed optical FTTH (Fiber To The Home) or FTTB
(Fiber To The Building) networks. The GLC1320G-55’s 1000 Mbps symmetric bandwidth per-
subscriber is perfect for offering IP-based triple play (voice, video, and Internet) services
The GLC1320G-55 aggregates layer-2 traffic from Ethernet subscribers to the IES system. The
GLC1320G-55’s Ethernet QoS, security, and multicast features make it easy to deploy, provide
subscribers with differentiated classes of service, and add new services.
Refer to the directions and safety warnings in the IES User's Guide to install the line card in the IES.
See the MSC User’s Guide for detailed information on configuring the line card.
1.2 Features
Here is a partial list of the GLC1320G-55’s features.
CSFP/SFP Slots
Install CSFP or SFP transceivers to connect to Ethernet switches. The Compact SFP (CSFP)
transceivers consist of two bidirectional channels inside a conventional SFP form factor.

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8
SFP Slots
Install SFP (Small Form-factor Pluggable) transceivers to connect to Ethernet switches.
Discovery and Dependency Mapping Inventory (DDMI)
Discovery and Dependency Mapping Inventory (DDMI) reads the transceiver temperature and
voltage.
SFP/CSFP Tx Manual Power Disable
Manually disables the transfer (Tx) power of individual transceivers.
Subnet Based VLAN
Subnet based VLAN allows you to group traffic into logical VLANs based on the source IP subnet you
specify. When a frame is received on a port, the GLC1320G-55 checks if a tag is added already and
the IP subnet it came from. The untagged packets from the same IP subnet are then placed in the
same subnet based VLAN. One advantage of using subnet based VLANs is that priority can be
assigned to traffic from the same IP subnet.
xVLAN
xVLAN changes the VLAN IDs (VIDs) of subscriber traffic before sending it to the service provider’s
network. It also changes the VIDs of traffic from the service provider’s network before sending it to
the subscriber. This lets you use unique VLANs for each subscriber but still deploy all the CPE
devices with the same VLAN configuration.
Upstream Broadcast Storm Control
Broadcast storm control lets you set limits for how many broadcast, multicast and destination
lookup failure (DLF) packets a port receives per second from the subscriber.
Downstream Broadcast VLAN Control
Downstream broadcast VLAN control allows you to block downstream broadcast packets from being
sent to specified VLANs on specified ports. This helps to reduce downstream bandwidth
requirements on a subscriber line.
MAC Count Limit
You can limit the number of MAC addresses that may be dynamically learned on a port. You may
enable/disable the MAC count filter on individual ports.
Rate Limiting
Rate limiting on the subscriber ports allows service providers to offer tiered service in increments of
64 Kbps. This service differentiation is not only to fulfill the needs of different customers, but also to
provide a network infrastructure that combines guaranteed performance and flexibility in service
provisioning.

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GLC1320G-55 User’s Guide 9
Loop Guard
Loop guard protects against network loops on the edge of you network.
Double Tag Mode (DT)
For untagged packets, DT adds outer VLAN tag and inner VLAN tags. For tagged packets, DT adds
an outer VLAN tag.
System Monitoring
• System status (link status, rates, statistics counters)
• Temperatures, voltage reports and alarms.
Configurable Alarms
The system allows you to customize the priority levels of individual alarms and the alarm severity
threshold for recording alarms on an individual slot(s).
Alarm LED
An ALM (alarm) LED lights when the GLC1320G-55 is overheated, the voltage readings are outside
the tolerance levels, a fan fails, or another alarm with a severity level of MAJOR or CRITICAL
occurs.
IEEE 802.1Q Tagged VLAN
Your GLC1320G-55 uses the IEEE 802.1Q Tagged VLAN (Virtual Local Area Network), which allows
it to deliver tagged/untagged frames to and from its ports. The IES supports up to 4094 individual
VLANs.
Multicast VLAN
Multicast VLAN is designed for applications (such as Media-on-Demand (MoD)) using multicast
traffic across an Ethernet ring-based service provider network. Multicast VLAN allows one single
multicast VLAN to be shared among different subscriber VLANs on the network. This improves
bandwidth utilization by reducing multicast traffic in the subscriber VLANs and simplifies multicast
group management.
IEEE 802.1x Port-based Authentication
The GLC1320G-55 supports the IEEE 802.1x standard for centralized user authentication and
accounting management through an optional network authentication (RADIUS) server.
Port Isolation
The GLC1320G-55's port isolation feature allows each port to communicate with the uplink port but
not communicate with each other. This option is the most limiting but also the most secure.

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10
Isolation (per-VLAN)
Use isolation to block the subscribers in a specific VLAN from sending traffic directly to each other.
Packet Filter
The GLC1320G-55 supports packet filtering based on protocol. You can configure the GLC1320G-55
to accept all packets, accept PPPoE packets only or block any combination of the following
protocols: IP, ARP, DHCP, EAPOL, PPPoE, NetBios or IGMP.
MAC (Media Access Control) Filters
Use the MAC filter to filter incoming frames based on MAC (Media Access Control) address(es) or
the OUI (Organizational Unit Identifier) that you specify. You may enable/disable the MAC filter on
specific ports. You may specify up to ten MAC addresses per port.
MAC (Media Access Control) Count Limit
You can limit the number of MAC addresses that may be dynamically learned on a port. You may
enable/disable the MAC count limit on individual ports.
IGMP Snooping
The GLC1320G-55 supports IGMP snooping enabling group multicast traffic to be only forwarded to
ports that are members of that group; thus allowing you to significantly reduce multicast traffic
passing through your GLC1320G-55.
IGMP Filter
The IGMP filter defines multicast groups a port can join. You can create IGMP filter profiles which
allow access to a multicast group, then assign the IGMP filter to a specific subscriber slot.
Multicast Group Limit
You can limit the number of IGMP multicast groups a subscriber on a port can join. You may enable/
disable the multicast group limit on individual ports.
Discarding of IGMP Query Messages
The GLC1320G-55 discards IGMP query messages received from subscriber ports. This prevents
subscribers from hosting IGMP multicast servers.
IGMP Statistics
The GLC1320G-55 records the number of active users in an IGMP multicast channel (multicast
group). The GLC1320G-55 also records IGMP message statistics on a per port basis to ease
management and troubleshooting.

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GLC1320G-55 User’s Guide 11
IGMP Message Rate Limiting
The GLC1320G-55 can limit how many IGMP message packets a subscriber can send per second.
This prevents subscribers from flooding the multicast server.
Static Multicast
Use static multicast to allow incoming frames based on multicast MAC address(es) that you specify.
This feature can be used in conjunction with IGMP snooping to allow multicast MAC address(es)
that are not learned by IGMP snooping. You can use static multicast to pass routing protocols, such
as RIP and OSPF.
Multicast Bandwidth Control
The GLC1320G-55 supports static bandwidth control for multicast traffic. Bandwidth limits can be
assigned to multicast channels. During IGMP snooping, the system checks the total bandwidth
usage to see if it exceeds the specified limit. If the specified limits are reached, the system restricts
the joining of multicast groups.
DHCP Relay
DHCP (Dynamic Host Configuration Protocol RFC 2131 and RFC 2132) allows individual computers
to obtain TCP/IP configuration at start-up from a server. You can configure the system as a DHCP
relay agent to have another DHCP server provide TCP/IP configuration for the clients. In addition,
you can set the system to forward client DHCP requests to specific DHCP servers based on the VLAN
ID. You can also specify up to two DHCP servers for each VLAN to provide failover protection.
DHCP Relay Option82
The system supports DHCP relay agent82 (RFC 3046) that adds additional information to client
DHCP requests that the MSC relays to a DHCP server. It also supports adding the sub-option 2
(Remote ID) with additional information.
DHCP Snooping
DHCP snooping allows the system to identify packets with DHCP server assigned IP address(es) and
block access of devices using unknown IP addresses on a subscriber port. You can also manually
add static IP addresses to the DHCP snooping table.
System Error Logging
The system error log will record error logs locally to the management switch card memory.
Remote Firmware Upgrade
You can use FTP or SFTP to perform configuration backup/restore and firmware upgrade from a
remote location.

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12
Anti-IP Address Spoofing
With DHCP snooping, the GLC1320G-55 records which IP addresses are assigned on each port. The
GLC1320G-55 drops packets from a device using a different IP address.
Anti-MAC Address Spoofing
The GLC1320G-55 checks to make sure the MAC addresses of the devices connected to the
subscriber ports are not the same as MAC addresses of devices connected to the Ethernet network.
This protects the network from disruptions of service caused by subscriber devices spoofing the
MAC address of ISP servers.
PPPoE Intermediate Agent Information
Similar to DHCP relay option82, you can set the system to insert line information into client PPPoE
Active Discovery Initialization (PADI), PPPoE Active Discovery Request (PADR), and upstream PPPoE
Active Discovery Terminate (PADT) packets. This allows a PPPoE termination server to identify and
authenticate a PPPoE client.
Transparent LAN Service (TLS)
Use TLS (also known as VLAN stacking) to add an outer VLAN tag to the inner IEEE 802.1Q tagged
frames that enter the network. By tagging the tagged frames (“double-tagged” frames), the service
provider can manage up to 4,094 VLAN groups with each group containing up to 4,094 customer
VLANs. This allows a service provider to provide different services based on specific VLANs, for
many different customers.
Classifier and Policy
You can create an ACL profile and map it to individual ports to define actions to be performed on
traffic that matches the ACL profile. The ACL profile specifies criteria such as the IP address, port
number, or protocol type, and so on.
Console Port
Use the console port for debugging and troubleshooting.
1.3 Front Panel
The figure below shows the front panel of the GLC1320G-55.
Figure 2 Front Panel

Chapter 1 Introducing the GLC1320G-55
GLC1320G-55 User’s Guide 13
1.4 Ports and LEDs
These are the details of the front panel ports and LEDs.
1.4.1 Ports
The following table describes the port labels on the front panel.
1.4.2 LEDs
The following table describes the LED indicators on the front panel of the GLC1320G-55.
Table 1 Front Panel Ports
LABEL DESCRIPTION
CONSOLE For troubleshooting purposes, this mini RJ-11port connects to a computer
when the line card is not manageable from the MSC.
1-16 These are slots for SFP transceivers.
17/21-20/24 These are slots for CSFP/SFP transceivers.
Table 2 LED Descriptions
LED COLOR STATUS DESCRIPTION
PWR Green On The line card is turned on.
Off The line card is off.
SYS Green Blinking The line card is rebooting and performing self-diagnostic
tests.
On The line card is on and functioning properly.
Off The power is off or the line card is malfunctioning.
ALM Red On There is a hardware failure or an alarm.
Off The line card is functioning normally.
LNK 1-16 Green On A Ethernet link is up.
Off The Ethernet link is down.
ACT 1-16 Green Blinking The Ethernet link is transmitting/receiving Ethernet traffic.
Off The Ethernet link is down.
LNK/ACT
17-24 Green On A Ethernet link is up.
Blinking The Ethernet link is transmitting/receiving Ethernet traffic.
Off The Ethernet link is down.

Chapter 1 Introducing the GLC1320G-55
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14

GLC1320G-55 User’s Guide 15
CHAPTER 2
Product Specifications
This chapter gives details about the line card hardware and features.
2.1 Product Specifications
Table 3 Device Specifications
Dimensions 390.6 mm (W) x 231.0 mm (D) x 24 mm (H)
Device Weight 865g
Interfaces • 16 SFP, 4 CSFP/SFP
• One mini RJ11 console port for local management
MAC Address Table Up to 4 K entries
Max. Number of IGMP
Filter Profiles 128
Operating Temperature -40º C ~ 65º C
Storage Temperature -40º C ~ 70º C
Operating Humidity 10% ~ 90% RH (non-condensing)
Storage Humidity 10% ~ 95% RH (non-condensing)
Power Consumption 40 W
Compatible SFP
Transceivers 100BASE-FX (MMF with link span up to 2km)
100BASE-LX (SMF with link span up to 20km)
1000BASE-SX (MMF with link span up to 550m)
1000BASE-LX (SMF with link span up to 20km)
1000BASE-LHX (SMF with link span up to 40km)
Compatible CSFP
Transceivers 1000BASE-BX10-U (SMF with link span up to 20km)
1000BASE-BX10-D (SMF with link span up to 20km)

Chapter 2 Product Specifications
GLC1320G-55 User’s Guide
16
This table lists the standards the GLC1320G-55 supports.
Certifications RoHS & WEEE compliant·
ETSI 300-019 ·
Safety
EN60950-1
CSA60950-1
UL60950-1
IEC60950-1
EMC
FCC Part 15 Class A
EN55022 Class A
N55024 Class A
ETSI 300 386 Class A
Other Features • Anti-IP Address Spoofing
• Anti-MAC Address Spoofing
• MAC Filtering
• MAC Count Limiting
• Hardware-based Multicasting
•MulticastGroupLimit
•IGMPMessageRateLimiting
• IEEE 802.1Q VLAN Tagging
• IEEE 802.1p CoS with Priority Queuing
• IGMP v1 & v 2 Snooping
•DHCPRelayOption82
• DHCP Snooping
• IEEE 802.1x Port-based Authentication
• ACL profile
• Upstream Broadcast Storm Control
• Downstream Broadcast VLAN Control
•MACCountLimit
•RateLimiting
• Loop Guard
• Subnet Based VLAN
•xVLAN
Table 4 Supported Standards
STANDARD DESCRIPTION
RFC 867
RFC 868
RFC 1305
Daytime protocol
Time protocol
Network Time Protocol (NTP)
RFC 1112
RFC 2236
RFC 3376
Internet Group Management Protocol (IGMP)
IGMP v2
IGMP v3
Table 3 Device Specifications

Chapter 2 Product Specifications
GLC1320G-55 User’s Guide 17
2.2 Firmware Naming Conventions
A firmware version includes the model code and release number as shown in the following example.
2.3 Console Cable Pin Assignments
The following diagram and chart show the pin assignments of the console cable.
RFC 1213
RFC 1573
RFC 1757
RFC 2662
RFC 2674
RFC 2863
RFC 3440
RFC 3635
RFC 3636
Simple Network Management Protocol (SNMP)
RFC 1483 Multiprotocol Encapsulation over ATM Adaptation Layer 5
RFC 2131
RFC 2132
RFC 3046
Dynamic Host Configuration Protocol (DHCP)
RFC 2138
RFC 2139
Remote Authentication Dial In User Service (RADIUS)
RFC 2486 Extensible Authentication Protocol (EAP)
RFC 2684 LLC and VC MUX Bridging
IEEE 802.1d Transparent Bridging
IEEE 802.1p Layer 2 Traffic Prioritization
IEEE 802.1Q Virtual Local Area Network (VLAN)
IEEE 802.1x Network Authentication
Table 4 Supported Standards (continued)
STANDARD DESCRIPTION
Firmware Version: V4.02(UHP.0)
"UHP" is the model code.
"0" is this firmware's release number. This varies as new firmware is released. Your firmware's
release number may not match what is displayed in this User's Guide.

Chapter 2 Product Specifications
GLC1320G-55 User’s Guide
18
Figure 3 Console Cable Mini RJ-11 Male Connector
Table 5 Console Cable Connector Pin Assignments
MINI RJ-11 MALE
Pin 2: TXD
Pin 3: RXD
Pin 4: GND

GLC1320G-55 User’s Guide 19
CHAPTER 3
Troubleshooting
This chapter offers some suggestions to solve problems you might encounter. The potential
problems are divided into the following categories.
•Power and LEDs
•Data Transmission
•Local Server
•Management and Configuration
3.1 Power and LEDs
The SYS or PWR LED does not turn on.
The ALM LED is on.
The ALM (alarm) LED lights when the line card is overheated or the voltage readings are outside
the tolerance levels.
Table 6 SYS LED Troubleshooting
STEPS CORRECTIVE ACTION
1 Make sure the power wires are properly connected to the power supply and the power
supply is operating normally. Make sure you are using the correct power source (refer to
the IES User’s Guide).
2 Make sure the power wires are connected properly.
3 Make sure the line card is properly installed.
4 The LED itself or the unit may be faulty; contact your vendor.
Table 7 ALM LED Troubleshooting
STEPS CORRECTIVE ACTION
1Usethesys monitor status command to verify the cause of the alarm. See step 2
if the unit is overheated, and step 3 if the voltages are out of the allowed ranges.

Chapter 3 Troubleshooting
GLC1320G-55 User’s Guide
20
3.2 Data Transmission
The link is up, but data cannot be transmitted.
3.3 Local Server
The computer behind an Ethernet switch cannot access a local server connected to the line
card.
2 Ensure that the IES is installed in a well-ventilated area and that normal operation of the
fans is not inhibited. Keep the bottom, top and all sides clear of obstructions and away
from the exhaust of other equipment.
3 If the voltage levels are outside the allowed range, take a screen shot of the sys
monitor status command display and contact your vendor.
Table 7 ALM LED Troubleshooting
STEPS CORRECTIVE ACTION
Table 8 Data Transmission Troubleshooting
STEPS CORRECTIVE ACTION
1 Check the line card’s port isolation settings.
If the subscriber is having problems with video or other high-bandwidth services, make
sure the line card’s port’s data rates are set high enough.
2 Check the VLAN configuration.
3 Ping the MSC from a computer at the subscriber’s location.
If you cannot ping, connect a Ethernet switch to a subscriber slot (that is known to
work).
If the Ethernet switch works with a different subscriber slot, there may be a problem with
the transceiver in the original SFP slot or the configuration for the SFP slot.
If using a different slot does not work, try a different Ethernet switch with the original
slot.