Lenovo G8000 Product Manual

RackSwitch G8000

Product Guide

The RackSwitch™ G8000 (Figure 1) is a top-of-rack (TOR) switch that delivers unmatched line-rate Layer 2/3
performance at a very attractive price. The G8000 is prepared for network virtualization, airflow to match server
racks, and low power consumption, making it an ideal choice for the next-generation data centers. It has forty-four
1 GbE RJ-45 ports, four 1 Gb SFP ports, and standard redundant power supplies along with up to four optional 10
GbE SFP+ or CX4 ports. Unlike most rack equipment that cools from side to side, the RackSwitch G8000 has rear­to-front airflow or front-to-rear that matches server airflow.

Figure 1. RackSwitch G8000

Did you know?

The RackSwitch G8000 comes standard with redundant power supplies and 2-post rail kit.

The RackSwitch G8000 is designed specifically for the data center environment: airflow, high-availability hardware
and software features, rich layer 2/3 functionality, and ease of management.

VMready® switch-resident software reduces the complexity of configuring and managing virtual machines
throughout the network.

Networking Operating System (Networking OS) software features deliver seamless, standards-based integration
into existing upstream switches.

The RackSwitch G8000 supports stacking for up to six switches using a single switch image and configuration file
that shares one IP address and one management interface.

RackSwitch G8000 1

Part number information

The part numbers to order the switch and additional options are shown in Table 1.

Note:

None

in the Feature code column in Table 1 means that the feature is not available/not supported.

Table 1. Part numbers and feature codes for ordering

Description Part number Feature code for

MTM 0446-HC3

Feature code for
MTM 7309-HCC

Switch

RackSwitch G8000 (Rear to Front) 0446013 2637 None

RackSwitch G8000 (Front to Rear) 7309CFC None A1QC

Miscellaneous options

Console Cable Kit Spare 90Y9462 A2MG A2MG

Adjustable 19" 4 Post Rail Kit 00D6185 A3KP A3KP

Recessed 19" 4 Post Rail Kit 00CG089 None A51M

Switch Seal Kit 00Y3001 None A4WX

iDataPlex Rail Kit 90Y3535 None A1SZ

Air Inlet Duct for 382 mm RackSwitch 00D6062 A3HG None

The part numbers for the G8000 switches include the following items:

One RackSwitch G8000 (rear-to-front airflow or front-to-rear airflow)

Generic Rack Mount Kit (2-post)

Mini-USB to DB-9 serial cable (3 m)

Console Cable Kit that includes:

RJ-45 (plug) to RJ-45 (plug) serial cable (1 m)
Mini-USB to RJ-45 (jack) adapter cable (0.2 m) with retention clip
DB-9 to RJ-45 (jack) adapter

Warranty Flyer

Important Notices Flyer

Documentation CD-ROM

The G8000 switch comes standard with the Console Cable Kit for management through a serial interface. Spare
serial management cables can be ordered, if required. The Console Cable Kit Spare option (90Y9462) contains the
following items:

RJ-45 (plug) to RJ-45 (plug) serial cable (1 m)

Mini-USB to RJ-45 (jack) adapter cable (0.2 m) with retention clip

DB-9 to RJ-45 (jack) adapter

The G8000 switch supports optional adjustable 19-inch, 4-post rack installation kit, part number 00D6185.
Optionally, Air Inlet Duct, part number 00D6062, can be ordered for the G8000 (rear-to-front airflow) switch for 4­post rack installations with the Adjustable 4-post Rail Kit (00D6185).

The G8000 (front-to-rear airflow) switch optionally supports Recessed 19-inch 4-Post Rail Kit (00CG089) and

RackSwitch G8000 2

Switch Seal Kit (00Y3001) that are used when the switch is installed in the Intelligent Cluster® Rack (MT 1410),
Enterprise Rack (MT 9363), or PureFlex® System Rack (MT 9363) with NeXtScale™ System. The G8000 (front-to­rear airflow) switch also supports 4-post iDataPlex® rack kit (90Y3535) which is used when the switch is installed
in the iDataPlex Rack.

The RackSwitch G8000 switch comes with two redundant fixed 150 W AC power supplies. Each internal power
supply has an individual IEC 320-C14 power connector on the rear panel. Power cables are not included and must
be ordered separately (see Table 2 for details). Two power cables are required per switch.

Table 2. Power cables

Description Part number Feature code for

MTM 0446-HC3 and
7309-HCC

Rack power cables

1.5m, 10A/100-250V, C13 to IEC 320-C14 Rack Power Cable 39Y7937 6201

2.8m, 10A/100-250V, C13 to IEC 320-C20 Rack Power Cable 39Y7938* 6204*

4.3m, 10A/100-250V, C13 to IEC 320-C14 Rack Power Cable 39Y7932 6263

Country-specific power cords

European 10A line C13 to CEE 7/7 (2.8M) 39Y7917 6212

Denmark 10A line C13 to DK2-5A (2.8M) 39Y7918 6213

Switzerland 10A line C13 to SEV 1011 (2.8M) 39Y7919 6216

Israel 10A line C13 to SI 32 (2.8M) 39Y7920 6218

South Africa 10A line C13 to SABS 164/1 (2.8M) 39Y7922 6214

United Kingdom 10A line C13 to BS 1363 (2.8M) 39Y7923 6215

Australia/NZ 10A line C13 to SAA-AS C112 (2.8M) 39Y7924 6211

Korea 7A line C13 to KETI 15A/250V (2.8M) 39Y7925 6219

India 6A line C13 to Fig 68 (2.8M) 39Y7927 6269

China 6A line C13 to GB 2099.1 (2.8M) 39Y7928 6210

Brazil 10A line C13 to NBR 6147 (2.8M) 39Y7929 6223

Argentina 10A line C13 to IRAM 2063 (2.8M) 39Y7930 6222

10A/250V C13 to NEMA 6-15P 2.8m power cord 46M2592* A1RF*

Japan 10A/100V C13 to JIS C-8303 2.8m power cord 46M2593* A1RE*

Line cord - 4.3M, 10A/125V, C13 to NEMA 5-15P (US) 39Y7931** 6207**

Japan 7A line C13 to JIS C-8303-1983 Denan (4.3M) 39Y7926** 6335**

* The option is not available for MTM 0446-HC3.
** The option is not available for MTM 7309-HCC.

Supported cables and transceivers

With the flexibility of the G8000 switch, clients can take advantage of the technologies that they require for multiple
environments:

For 1 GbE links, clients can use RJ-45 UTP cables up to 100 m. Clients that need longer distances can
leverage the SFP ports by using a 1000BASE-SX transceiver, which can drive distances up to 220 meters
by using 62.5 µ multi-mode fiber and up to 550 meters with 50 µ multi-mode fiber or the 1000BASE-LX
transceivers that support distances up to 10 kilometers using single-mode fiber (1310 nm).

For 10 GbE links (supported with optional uplink modules), clients can choose SFP+ or 10GBASE-CX4
connectivity. With SFP+ ports, clients can use direct-attached copper (DAC) SFP+ cables for in-rack

RackSwitch G8000 3

cabling for distances up to 7 m. These DAC cables have SFP+ connectors on each end, and they do not
need separate transceivers. For longer distances, the 10GBASE-SR transceiver can support distances up to
300 meters over OM3 multimode fiber or up to 400 meters over OM4 multimode fiber with LC connectors.
The 10GBASE-LR transceivers can support distances up to 10 kilometers on single mode fiber with LC
connectors. For extended distances, the 10GBASE-ER transceivers can support distances up to 40
kilometers on single mode fiber with LC connectors. With CX4 ports, client can use InfiniBand 4X copper
cables for distances up to 15 m.

The RackSwitch G8000 switch supports 10 GbE links with the optional dual-port SFP+ or CX4 uplink modules (see
Table 3). Up to two uplink modules can be installed per switch (one on the front panel and one on the rear panel).

Table 3 lists the supported cables and transceivers.

Table 3. Supported transceivers and direct-attach cables

Description Part

number

Feature code
(MTM 0446­HC3 / 7309­HCC)

Maximum
quantity
supported

SFP transceivers - 1 GbE

Lenovo 1000BASE-T SFP Transceiver (does not support 10/100 Mbps) 00FE333 A5DL* 8

Lenovo 1000BASE-SX SFP Transceiver 81Y1622 3269 8

Lenovo 1000BASE-LX SFP Transceiver 90Y9424 A1PN 8

Uplink modules - 10 GbE

RackSwitch 10Gb Dual-Port SFP+ Uplink Module 46C3417 1463 2

RackSwitch 10Gb Dual-Port CX4 Uplink Module 46C3421 1464 2

SFP+ transceivers - 10 GbE (require SFP+ Uplink Module)

Lenovo 10GBASE-SR SFP+ Transceiver 46C3447 5053 4

Lenovo 10GBASE-LR SFP+ Transceiver 90Y9412 A1PM 4

Lenovo 10GBASE-ER SFP+ Transceiver 90Y9415 A1PP 4

RackSwitch G8000 4

Optical cables for 1 GbE SFP SX and 10 GbE SR SFP+ transceivers

Lenovo 0.5m LC-LC OM3 MMF Cable 00MN499 ASR5 8

Lenovo 1m LC-LC OM3 MMF Cable 00MN502 ASR6 8

Lenovo 3m LC-LC OM3 MMF Cable 00MN505 ASR7 8

Lenovo 5m LC-LC OM3 MMF Cable 00MN508 ASR8 8

Lenovo 10m LC-LC OM3 MMF Cable 00MN511 ASR9 8

Lenovo 15m LC-LC OM3 MMF Cable 00MN514 ASRA 8

Lenovo 25m LC-LC OM3 MMF Cable 00MN517 ASRB 8

Lenovo 30m LC-LC OM3 MMF Cable 00MN520 ASRC 8

SFP+ passive direct-attach cables - 10 GbE (require SFP+ Uplink Module)

Lenovo 0.5m Passive SFP+ DAC Cable 00D6288 A3RG 4

Lenovo 1m Passive SFP+ DAC Cable 90Y9427 A1PH 4

Lenovo 1.5m Passive SFP+ DAC Cable 00AY764 A51N 4

Lenovo 2m Passive SFP+ DAC Cable 00AY765 A51P 4

Lenovo 3m Passive SFP+ DAC Cable 90Y9430 A1PJ 4

Lenovo 5m Passive SFP+ DAC Cable 90Y9433 A1PK 4

Lenovo 7m Passive SFP+ DAC Cable 00D6151 A3RH 4

SFP+ active direct-attach cables - 10 GbE (require SFP+ Uplink Module)

Lenovo 1m Active SFP+ DAC Cable 95Y0323 A25A 4

Lenovo 3m Active SFP+ DAC Cable 95Y0326 A25B 4

Lenovo 5m Active SFP+ DAC Cable 95Y0329 A25C 4

Lenovo 1m Active DAC SFP+ Cable (replaces 95Y0323) 00VX111 AT2R 4

Lenovo 3m Active DAC SFP+ Cable (replaces 95Y0326) 00VX114 AT2S 4

Lenovo 5m Active DAC SFP+ Cable (replaces 95Y0329) 00VX117 AT2T 4

* The option is not available for MTM 0446-HC3.

RackSwitch G8000 5

Benefits

The RackSwitch G8000 switch is considered particularly suited for these clients:

Clients who want to leverage GbE in their infrastructure (both servers and networking)

Clients who are implementing a virtualized environment and require multiple GbE ports

Clients who require investment protection for 10 GbE ports

Clients who want to reduce TCO and improve performance while maintaining high levels of availability and
security

Clients who want to avoid or minimize oversubscription, which can result in congestion and loss of
performance

Clients who want to implement a converged infrastructure with NAS or iSCSI

The RackSwitch G8000 offers the following benefits:

High performance: The G8000 provides up to 176 Gbps throughput and supports up to four 10 GbE uplink
ports for a very low oversubscription ratio.

Lower power and better cooling: The G8000 uses approximately 120 W, which is a fraction of the power
consumption of most competitive offerings. Unlike side-cooled switches, which can cause heat
recirculation and reliability concerns, the G8000 rear-to-front/front-to-rear cooling design reduces data
center air conditioning costs by matching airflow to the server’s configuration in the rack. Variable speed
fans assist in automatically reducing power consumption.

VM-aware network virtualization: VMready software on the switch reduces configuration complexity while
significantly improving security levels in virtualized environments. VMready automatically detects virtual
machine movement from one physical server to another, and instantly reconfigures each VM’s network
policies across VLANs to keep the network up and running without interrupting traffic or impacting
performance. VMready works with all leading hypervisors, such as VMware, Citrix Xen, RedHat KVM,
Microsoft Hyper-V, and IBM PowerVM hypervisor.

Layer 3 functionality: The switch includes Layer 3 functionality, which provides security and performance
benefits, plus static and dynamic routing protocols including Open Shortest Path First (OSPF) and Border
Gateway Protocol (BGP) for enterprise customers.

Fault tolerance: These switches learn alternate routes automatically and perform faster convergence in the
unlikely case of a link, switch, or power failure. The switch uses proven technologies such as L2 trunk
failover, advanced VLAN-based failover, VRRP, Hot Links, IGMP V3 snooping, and OSPF.

Seamless interoperability: RackSwitch switches interoperate seamlessly with other vendors' upstream
switches. See the following resources:

Tolly Functionality and Certification: RackSwitch G8000, G8100, and G8124 and Cisco Catalyst
Interoperability Evaluation:

http://www-01.ibm.com/common/ssi/cgi-bin/ssialias?
infotype=SA&subtype=WH&htmlfid=QCL12370USEN#loaded

Stacking: Cluster virtualization, single IP, and stacking of up to six virtual switches allow configuration of
multiple switches as one, saving valuable time, IP addresses, and resources.

Features and specifications

Note: Features and specifications listed in this section are based on Networking OS 6.8.

The G8000 switch has the following features and specifications:

Form factor: 1U rack mount switch

RackSwitch G8000 Rear-to-Front version for ports located in the rear of the rack matching System

RackSwitch G8000 6