Black Box LGB1005A User manual

Bring bandwidth flexibility to your mixed-speed
environments—and add uplinks to fiber!
Bring bandwidth flexibility to your mixed-speed
environments—and add uplinks to fiber!
L2 Managed Ethernet Switch
© 2007. All rights reserved. Black Box Corporation.
FREE 24-hour Tech Support: 724-746-5500
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FEATURES
• Has eight 10/100/1000 twisted-pair
ports and 16 SFP (Small Form-Factor
Pluggable) slots.
• Add SFP modules to create uplinks
to fiber optic segments.
• Supports all 802.3/u/x/z Ethernet,
Fast Ethernet, and Gigabit Ethernet
specifications.
• LACP aggregation enables you to
bundle ports to create high-bandwidth
links and higher availability.
• Ideal for real-time VoIP applications.
• Prioritize specific traffic using
programmable QoS features.
• Manage and configure via an RS-232
serial connection or Web-based tools
via an Ethernet connection.
• Extensive VLAN capabilities for
increased security and traffic
segmentation.
• Embedded 400 KB on-chip buffer
and 8K MAC addresses.
• Supports SNMP and RMON
management.
• Spanning Tree (802.1w) algorithms
prevent network switching loops.
• RoHS compliant.
Switch between mixed-speed segments and high-speed Gigabit fiber segments.
OVERVIEW
Connect desktop computers to a workgroup and link your
copper 10-/100-/1000-Mbps segments to a fiber optic Gigabit
Ethernet backbone with the L2 Managed Ethernet Switch.
Highly suitable for both metropolitan area network (MAN)
and office LAN applications, the switch features 8 1000BASE-TX
copper and 16 SFP ports. Because it’s compatible with IEEE
802.3u/x/z standards, you can integrate applications of varying
speeds into your switching application.
Or, use the switch in a server farm environment to connect
central servers and desktop workgroups to remote networks over
a fiber optic backbone. You can even connect two peer networks.
The switch is a Layer 2 manageable device, offering
management via an async console directly connected to its
RS-232 port or through an Ethernet port using CLI or SNMP.
For easy integration into your network, the switch auto-
matically negotiates the best speed and duplex values at both
ends of the connection. And because its twisted-pair ports
support MDI/MDI-X auto-crossover, you can use either straight-
through or crossover cable for your network connections.
Connect fiber segments via SFP plug-in modules.
To establish high-speed 1000-Mbps uplinks, order an SFP
module. We offer an 850-nm multimode model, a 1310-nm
single-mode model, and a 1550-nm single-mode model.
The hot-swappable modules are easy to install. Just slide
them into the switch’s slot and connect the media cable. Because
they’re Layer 1 devices, the transceivers operate transparently.
Provide bandwidth where you need it.
The switch’s bandwidth-management function enables
you to set each port’s ingress and egress bandwidth limit.
And to allocate more bandwidth to a specific application,
the switch has 802.3ad Link Aggregate Control Protocol (LACP)
capabilities. This controls how physical link traffic is routed.
You can, for instance, combine Gigabit ports to create a
multilink trunk for load sharing. This is particularly useful in
switch-to-switch cascading applications requiring high full-
duplex speeds. You can also bundle links into one logical link
to create fault tolerance protection for your connections.
In addition to link capacity, you can also create higher
availability. All traffic is aggregated based on MAC addresses,
so traffic loads are balanced effectively.
For bandwidth aggregation, the switch supports two kinds
of port trunking methods: LACP port trunking and static port
trunking. Using LACP, a port makes an agreement with its peer
port before it becomes a member of a trunk group. But with
static port trunking, a port can immediately become a member
of a trunk group without any handshaking with its peer port.
The switch supports a maximum of eight trunk groups
for LACP and an additional eight trunk groups for static trunk.
In total, up to 12 Gigabit ports can be set up per trunk for
bandwidth up to 24 Gbps on the switch.
QoS for assigning priority to important traffic.
Along with Layer 2 802.1p Priority Queue control, the
switch offers a much higher level of Quality of Service (QoS)
support, so you can program a higher layer classification and
prioritization for traffic in real-time applications.
The QoS port priority feature assigns each port a “high” or
“low” priority in the transmitting of packets. For example, if
the switch transmits IP packets from Port 2 and Port 3 to Port 1
and you set the Class of Port 2 as “high” and Port 3 as “low,”
Port 3 packets will be dropped when congestion occurs.
Certain Layer 3 and Layer 4 classifications are also possible
when assigning QoS. At Layer 3, you can define precedence
based on the three bits within the ToS field of the IP frame
header. At Layer 4, the switch allows prioritization of incoming
L2 Managed Ethernet Switch
(LGB1005A) with
SFPs (LGB200C-MLC and
LGB200C-SLC10 installed
Fast Ethernet
workstation
Single-mode Gigabit fiber uplink from
LGB200C-SLC10 to an office 6 miles away
Multimode Gigabit fiber uplink from
LGB200C-MLC to a department 1800 feet away
1000-Mbps fiber switch
at remote office
1000-Mbps fiber switch
at remote campus department
Ethernet
workstation
Gigabit
media server
100-Mbps server
CAT5e
cables
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packets on UDP/TCP ports. Following predefined QoS policies,
you can give priority to Web browsing, e-mail, and FTP traffic,
as well as VoIP telephony, iSCSI, streaming audio/video, or access
to important SQL, Oracle, or other databases.
In addition, the switch lets you define weight classification
of packet priority on the packet’s VLAN tag (using one of the
4094 unique 12-bit VLAN IDs).
When using a VLAN tagged field to determine priority,
three bits in the packet are arranged in eight possible traffic
patterns, with “high priority” or “low priority” assigned to each.
Regardless of prioritization chosen, you can count on reliable
voice and data as information travels from Layer 2 to Layer 4.
Isolate traffic through VLANs.
Because the switch supports up to 256 active VLANs, you can
create virtual network segments that not only group users and
ports logically across your enterprise, but by replacing a shared-
hub architecture, they remove the physical barriers imposed by
each wiring closet. Because traffic is isolated from different
groups of users, you can ensure better security.
Specifically, the switch supports advanced 802.1Q, which
limits broadcast traffic to within the same VLAN broadcast
domain. And for enhanced security and performance, you can
isolate traffic between different users using the switch’s Q-in-Q
VLAN feature.
You can set up VLANs using one of four VLAN modes:
• Port-Based VLAN Mode. Any packet coming in or out from
any one port of a port-based VLAN will be accepted. Up to
eight port-based VLAN groups are supported.
• Tag-based VLAN Mode. The VLAN identifies its member
by VID. If there are additional rules in ingress or egress
filtering lists, the packet is screened with the new filtering
criteria to determine if it can be forwarded. Up to 64 tag
VLAN groups can be created.
•Metro Mode. Quickly set up an environment that contains
six or seven port-based VLAN groups.
•Double-Tag Mode. The switch treats all frames as untagged,
so all incoming tagged packets become double-tagged
packets.
For proper load balancing in VLAN applications, the switch
uses an 802.1w Rapid Spanning Tree (RST) algorithm for creating
a loop-free Layer 2 topology.
Control access and traffic for greater security.
The switch offers a number of security features, including
802.1x user authentication. This prevents unauthorized access
via a network. You can also limit the number of MAC addresses
assigned to each port.
For alarm notification, configure the switch to send an
e-mail, mobile phone message, or both when up to 24 possible
predefined trap events occur.
724-746-5500 blackbox.com
In addition, the switch offers Internet Group Management
Protocol (IGMP) snooping capabilities. It establishes multicast
groups to forward a multicast packet to the member ports.
This preserves bandwidth when sending IP multicast packets
over a network and keeps transmissions going only to ports
that have requested them.
You can also restrict traffic using the switch’s broadcast/
multicast storm suppression. You control the rate limit for
each of the switch’s ports, setting threshold values that dictate
at what count packets are to be discarded.
Plus, the switch can forward packets up to 9K in size
before discarding them, so you’re able to ensure reliable data
transmission. Simply specify the maximum packet length that
each switch port can accept (up to 1532 or 9208 bytes).
Highly manageable, stackable, and path-reliable.
Control the switch through a console connected via
the included DB9 cable to its RS-232 serial port, as well as
a Web-based management tool running an SNMP agent via
one of its Ethernet ports. With the SNMP agent, you monitor,
configure, and control each port’s activity.
You can use the management software to access and
control any one port on the switch for MIBs, spanning tree,
and port-aggregation status, multicast traffic, VLAN, and
priority status, and illegal reporting. Trap logs keep a record
of traps occurring on the switch (up to 120 entries), displaying
each trap event by time and type.
The switch’s intelligent software offers per-port traffic
monitoring counters, system information snapshot upon login
capabilities, and port mirroring controls. Port mirroring copies
traffic from a specific port to a target port, thus helping track
network errors or abnormal packet transmission without
interrupting the data flow across the network.
For greater port density, you can physically stack up to
16 L2 Managed Ethernet Switches and manage them all via
one IP address using Virtual Stacking Management (VSM).
In this configuration, the switches are seen as part of a
logically segmented VLAN—an expanded network that
doesn’t require the expense or configuration of additional
hardware to implement. With multiple switches grouped
in a single LAN, one switch serves as the master machine
and the others as slave devices.
For mission-critical applications, use multiple L2 Managed
Ethernet Switches, configuring each with a redundant backup
bridge path. Then, if a failure occurs on one switch, you’ll
still be able to guarantee the transmission and reception
of packets via a secondary link on your network. In a VSM
master-slave configuration, you can configure more than
two devices as the master device for master redundancy.

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Item Code
L2 Managed Ethernet Switch,
(8) 1000BASE-TX Copper + (16) SFP Slots LGB1005A
For fiber uplinks via the SFP slots, add multiple modules…
850-nm Multimode Gigabit SFP Module LGB200C-MLC
1310-nm Single-Mode Gigabit SFP Module LGB200C-SLC10
1550-nm Single-Mode Gigabit SFP Module LGB200C-SLC30
NOTE: For a full list of compatible BLACK BOX®SFP Modules,
contact our FREE Tech Support.
✦ L2 Managed Ethernet Switch
✦ (1) AC power cord
✦ (1) DB9 female to DB9 female RS-232 cable
✦ Rackmount kit with mounting ears and hardware
✦ (4) rubber feet
✦ CD-ROM containing a user manual
✦ Printed quick-start guide
WHAT‘S INCLUDED
TECH SPECS
Access Control — 802.1x; Management Access Policy Control; SNMP v1,
v2c network management
Bandwidth Control — Supports ingress, non-unicast, and egress
bandwidth rating management with a resolution of 1 Mbps
Flow Control — 802.3x compliant for full duplex; backpressure flow
control for half-duplex
Forwarding/Filtering Packet Rate — 1000 Mbps: 1,488,000 pps;
100 Mbps: 148,800 pps;
10 Mbps: 14,880 pps
Frame Buffer — 400 KB on-chip
MAC Addresses — 8K
MIB Files — Interface MIB, Address Translation MIB, Statistics Group 1,
History Group 2, Alarm Group 3, Event Group 9, IP MIB, ICMP MIB,
TCP MIB, UDP MIB, SNMP MIB, FC 1213 MIB (MIB-II), RFC 1757
RMON MIB, RFC 1493 Bridge MIB, RFC 1643 Ethernet MIB,
Enterprise MIB
Protocols — LACP: Port trunking with 8 trunking groups, up to
12 ports for each group;
GVRP/GARP: 802.1q;
Multicasting: IGMP snooping including active and passive mode;
STP/RSTP: 802.1d/1w
QoS Supported — Layer 4 TCP/UDP port and ToS classification; 802.1p
QoS with two-level priority queue; priority in a Q-in-Q tag
Standards — IEEE 802.3 (10BASE-T twisted-pair copper), IEEE 802.3u
(100BASE-TX twisted-pair copper); IEEE 802.3ab (1000BASE-TX
twisted-pair copper), IEEE 802.3z (1000BASE-SX/LX Ethernet), IEEE
802.3x flow control, ANSI/IEEE 802.3 autonegotiation, IEEE 802.1q
VLAN
Switching Capacity — Non-blocking wire-speed performance; supports
jumbo frame support up to 9K; broadcast/multicast storm
suppression; port mirroring
Transmission Mode — 10-/100-Mbps support for full or half-duplex;
1000-Mbps support for full duplex only
User Controls — (1) Reset button
VLAN Capabilities — Port-based VLANs; IEEE 802.1q tag-based VLANs,
up to 256 active VLANs; Q-in-Q for enabling subscriber aggregation
CE Approval — Yes
Connectors — Twisted-pair ports: (8) RJ-45;
SFP slots: (16) SFP ports for plugging in optional SFP modules;
Serial: (1) DB9 F (RS-232)
Indicators — LEDs: System: (1) Power;
(1) CPU (blinks when CPU is active);
Each twisted-pair port: (1) LINK/ACT (lights when connectivity with
remote device is detected/blinks when traffic is detected),
(1) 10/100/1000 Mbps (lights green when 1000-Mbps speed is
detected/lights amber when 100-Mbps speed is detected/off
when 10-Mbps speed or no twisted-pair link is detected);
SFP fiber slots: (1) LINK/ACT (lights when good SFP connection with
remote device is detected/blinks when any traffic is present)
Operating Environment — Temperature: 32 to 104ºF (0 to 40°C);
Humidity: 5 to 90%, noncondensing
Power — Input: 100–240 VAC, 50–60 Hz, autosensing;
Consumption: 30 W
Size — 1.7"H x 17.4"W x 8.2"D (4.3 x 44.2 x 20.8 cm)
Weight — 6.6 lb. (3 kg) with unpopulated SFP fiber slots