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
GLC1320G-55 User’s Guide
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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.

Chapter 1 Introducing the GLC1320G-55
GLC1320G-55 User’s Guide
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.

Chapter 1 Introducing the GLC1320G-55
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.

Chapter 1 Introducing the GLC1320G-55
GLC1320G-55 User’s Guide
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.