Lenovo RackSwitch G7028 User manual

Lenovo RackSwitch G7028
Product Guide
The Lenovo RackSwitch™ G7028 is an inexpensive, entry-level Layer 2 1/10 Gb Ethernet switch that is
designed for the data center. Data center customers continue to deploy applications by using 1 GbE
networking switches while 10 GbE continues to grow for customer solutions that require greater I/O
bandwidth. The RackSwitch G7028 is an ideal solution for data center customers who need an economical
1 Gb and 10 Gb connectivity solution.
The RackSwitch G7028 (see the following figure) is a top-of-rack data center switch that delivers excellent
non-blocking, wire speed performance at an attractive price point. It supports 24x 10/100/1000BASE-T
RJ-45 ports and four 10 Gigabit Ethernet SFP+ ports standard, while typically using only 45 watts of
power. The RackSwitch G7028 is also designed with rear-to-front airflow, which allows for flexible
mounting of the switch in a rack cabinet and provides convenient cable management and significant
savings in cooling costs.
Figure 1. Lenovo RackSwitch G7028
Did you know?
The RackSwitch G7028 is designed with non-blocking, line-rate throughput.
The RackSwitch G7028 supports an optional external redundant power supply with the Lenovo
RackSwitch G7000 Redundant Power Supply option.
The RackSwitch G7028 is designed specifically for the data center environment with server-matching
airflow, cost-effective Layer 2 switching and ease of configuration management.
Networking Operating System software features deliver seamless, standards-based integration into
upstream switches.
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Key features
The RackSwitch G7028 switch is considered particularly suited for the following customers:
Customers who want to use GbE in their infrastructure (servers and networking)
Customers who are implementing a virtualized environment and require multiple GbE ports
Customers who require investment protection for 10 GbE ports
Customers who want to reduce total cost of ownership (TCO) and improve performance while
maintaining high levels of availability and security
Customers who want to avoid or minimize oversubscription, which can result in congestion and
loss of performance
Customers who want to implement a converged infrastructure with NAS or iSCSI
The G7028 switch offers the following key features and benefits:
Increases network performance
The RackSwitch G7028 provides up to 128 Gbps of switching throughput, supports four SFP+ 10
Gb uplink ports for zero oversubscription, and has a port to port latency of 3.3 microseconds.
Lower power and exceptional cooling
The RackSwitch G7028 typically uses only 45 W of power. Unlike side-cooled switches, which can
cause heat recirculation and reliability concerns, the RackSwitch G7028 switch's rear-to-front
cooling design reduces data center air conditioning costs by matching airflow to the server’s
configuration in the rack.
Fault tolerance
These switches learn alternative paths automatically and perform faster convergence if there is a
link, switch, or power failure. The switch uses technologies, such as Virtual Link Aggregation, L2
trunk failover, and Hot Links.
Seamless interoperability
RackSwitch switches interoperate seamlessly with other vendors' upstream switches.
The RackSwitch G7028 supports an optional external redundant power supply with the Lenovo
RackSwitch G7000 Redundant Power Supply (RPS) option that is shown in the following figure.
Figure 2. Lenovo RackSwitch G7000 Redundant Power Supply
The G7000 RPS option has the following features:
Form factor: 1U rack mount
Power connections: Four DC connections in the rear of the rack to connect to the G7028 and
G7052 switches; one AC inlet connector to connect to the power source (rack PDU or wall
connector)
Airflow: Rear-to-front cooling
Power: Approximately 55 - 276 W, which varies depending upon operating conditions and number
and types of switches connected
Rack installation: Generic rack-mount kit (2-post); optional flexible 4-post mounting option for the
server rack and the communications rack
LEDs: System LEDs to indicate status
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Components and connectors
The front panel of the RackSwitch G7028 is shown in the following figure.
Figure 3. Front panel of the RackSwitch G7028
The front panel of the G7028 contains the following components:
LEDs that display the status of the switch module and the network.
One RJ-45 RS-232 console port that provides another means to configure the switch module.
A total of 24 1000BASE-T Ethernet ports for 10/100/1000 Mbps connections.
Four SFP+ ports to attach SFP/SFP+ transceivers for 1 Gb or 10 Gb connections or DAC cables for
10 Gb Ethernet connections.
One RJ-45 10/100/1000 Mb Ethernet port for out-of-band management.
The rear panel of the RackSwitch G7028 is shown in the following figure.
Figure 4. Rear panel of the RackSwitch G7028
The rear panel of the G7028 contains the following components:
One AC power connector (IEC 320-C14)
Three fans with N+1 redundancy
One DC power connector for power supply redundancy
The rear panel of the RackSwitch G7000 RPS option is shown in the following figure.
Figure 5. Rear panel of the RackSwitch G7000 RPS option
The rear panel of the G7000 RPS option contains the following components:
One AC power connector (IEC-320 C14)
Four DC power connectors
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System specifications
The following table lists the RackSwitch G7028 system specifications.
Table 1. System specifications
Component Specification
Form factor 1U rack mount
Ports 24x Gigabit Ethernet (GbE) RJ-45 fixed ports
4x SFP/SFP+ ports
SFP/SFP+ media
types
10 Gb Ethernet SFP+:
10 GbE short-range (SR) SFP+ transceivers
10 GbE long-range (LR) SFP+ transceivers
10 GbE SFP+ direct attach copper (DAC) cables
1/10 Gb Ethernet SFP+:
1/10 GbE SX/SR SFP+ transceivers
1 Gb Ethernet SFP:
1 GbE short-wavelength (SX) SFP transceivers
1 GbE long-wavelength (LX) SFP transceivers
1 GbE RJ-45 SFP transceivers
Port speeds 1 GbE RJ-45 fixed ports: 10/100/1000 Mbps autosensing
10 GbE SFP+ transceivers: 10 Gbps
1/10 GbE SFP+ transceivers: 1 Gbps or 10 Gbps
1 GbE SFP transceivers: 1 Gbps
Data traffic types Unicast, multicast, broadcast.
Software features Lenovo Networking OS:
Layer 2 switching, virtual local area networks (VLANs), VLAN tagging, spanning tree protocol
(STP), link aggregation (trunk) groups (LAGs), virtual LAGs (vLAGs), Hot Links, Layer 2 failover,
quality of service (QoS), IP v4 management, IP v6 management.
Performance Non-blocking architecture with wire-speed forwarding of traffic:
Up to 128 Gbps aggregated throughput
As low as 3.3 microseconds switching latency
Up to 96 Million packets per second (Mpps)
Up to 12,288-byte jumbo frames
Scalability MAC address forwarding database entries: 8,000
VLANs: 4,095 (512 active VLANs)
Per VLAN Rapid Spanning Tree (PVRST) instances: 128
Multiple STP (MSTP) instances: 32
Link aggregation groups: 16
Ports in a link aggregation group: 8
Cooling Three 2+1 redundant fixed fans. Rear (non-port side) to front (port side) airflow.
Power supply One fixed 90 W AC (100 - 240 V) power supply (IEC 320-C14 connector). Optional external
power supply unit (PSU) is available for redundancy (one PSU with 4x 90 W DC output for up
to four G7028 or G7052 switches).
Hot-swap parts SFP/SFP+ transceivers, SFP+ DAC cables.
Management
ports
1x 10/100/1000 Mb Ethernet port (RJ-45); 1x RS-232 port (RJ-45); 1x USB port (for additional
firmware, log, and configuration files storage).
Management
interfaces
Industry standard command line interface (isCLI); SNMP v1 and v3. Optional Lenovo XClarity
for discovery, inventory, monitoring and events.
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Security features Secure Shell (SSH); Secure Copy (SCP); user level security, Role-based Access Control
(RBAC); LDAP, RADIUS, and TACACS+ authentication; access control lists (ACLs); port-
based network access control (IEEE 802.1x).
Hardware
warranty
Three-year customer-replaceable unit and onsite limited warranty with 9x5 next business day
terms. Optional warranty service upgrades are available through Lenovo: 24x7 coverage, 2-
hour or 4-hour response time, 1-year or 2-year warranty extensions, 1-year or 3-year Remote
Technical Support (RTS).
Software
maintenance
Three-year software support and subscription is included in the base warranty. Optional 1-
year and 2-year warranty extensions include software support and subscription.
Mean Time
Between Failures
128,407 hours with ambient operating temperature of 40° C
Dimensions Height: 44 mm (1.7 in.); width: 439 mm (17.3 in.); depth: 382 mm (15.0 in.)
Weight 5.3 kg (11.7 lb).
Component Specification
Models
The following table lists the G7028 switch models.
Table 2. G7028 switch models
Description
Part
number
Machine
Type-Model
Feature
code
Lenovo RackSwitch G7028 (Rear-to-Front) 7159BAX 7159-HCP AT09
The part number for the G7028 switch includes the following items:
One Lenovo RackSwitch G7028
Generic Rack Mount Kit (2-post)
Power Cord Retention Clip
Console Cable Kit:
RJ-45 (plug) to RJ-45 (plug) cable (1 m)
Mini-USB to RJ-45 (jack) cable (0.2 m)
DB-9 to RJ-45 (jack) adapter
Warranty Flyer
Important Notices Flyer
Documentation CD-ROM
Configuration notes:
Power cables are not included and must be ordered together with the switch (see "Power supplies
and cables" for details).
SFP/SFP+ transceivers and cables are not included and should be ordered together with the
switch, if required (see "Transceivers and cables" for details).
Transceivers and cables
With the flexibility of the G7028 switch, customers can choose the following connectivity technologies:
For 1 GbE links, customers can use RJ-45 UTP cables up to 100 meters. Customers that need
longer distances can use the 1000BASE-SX transceivers in the SFP/SFP+ ports, which can drive
distances up to 220 meters with 62.5 µ multi-mode fiber (OM1) and up to 550 meters with 50 µ
multi-mode fiber (OM2), or the 1000BASE-LX transceivers that support distances up to 10
kilometers with single-mode fiber (1310 nm).
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For 10 GbE links (supported on SFP+ ports), customers can use direct-attached copper (DAC)
SFP+ cables for in-rack cabling for distances up to 7 meters. 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. The 10GBASE-LR
transceivers can support distances up to 10 kilometers on single mode fiber.
The supported SFP/SFP+ and DAC cable options are listed in the following table.
Table 3. Supported SFP/SFP+ transceivers and DAC cables
Description
Part
number
Feature
code
Maximum
quantity
supported
SFP transceivers - 1 GbE
Lenovo 1000BASE-T (RJ-45) SFP Transceiver (no 10/100 Mbps support) 00FE333 A5DL 4
Lenovo 1000BASE-SX SFP Transceiver 81Y1622 3269 4
Lenovo 1000BASE-LX SFP Transceiver 90Y9424 A1PN 4
SFP+ transceivers - 10 GbE
Lenovo Dual Rate 1/10Gb SX/SR SFP+ Transceiver 00MY034 ATTJ 4
Lenovo 10GBASE-SR SFP+ Transceiver 46C3447 5053 4
Lenovo 10GBASE-LR SFP+ Transceiver 90Y9412 A1PM 4
Optical cables for 1 GbE SFP SX and 10 GbE SFP+ SR transceivers
Lenovo 0.5m LC-LC OM3 MMF Cable 00MN499 ASR5 4
Lenovo 1m LC-LC OM3 MMF Cable 00MN502 ASR6 4
Lenovo 3m LC-LC OM3 MMF Cable 00MN505 ASR7 4
Lenovo 5m LC-LC OM3 MMF Cable 00MN508 ASR8 4
Lenovo 10m LC-LC OM3 MMF Cable 00MN511 ASR9 4
Lenovo 15m LC-LC OM3 MMF Cable 00MN514 ASRA 4
Lenovo 25m LC-LC OM3 MMF Cable 00MN517 ASRB 4
Lenovo 30m LC-LC OM3 MMF Cable 00MN520 ASRC 4
SFP+ passive direct-attach cables - 10 GbE
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
Lenovo 1m Active DAC SFP+ Cable 00VX111 AT2R 4
Lenovo 3m Active DAC SFP+ Cable 00VX114 AT2S 4
Lenovo 5m Active DAC SFP+ Cable 00VX117 AT2T 4
Spare console cables
Console Cable Kit Spare (RJ45/DB9) 90Y9462 A2MG 1
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The network cables that can be used with the switch are listed in the following table.
Table 4. G7028 network cabling requirements
Transceiver Standard Cable Connector
10 Gb Ethernet
10Gb SR SFP+ (46C3447)
1/10Gb SFP+ (00MY034)
10GBASE-SR Up to 30 m with fiber optic cables supplied by Lenovo
(see Table 3); up to 300 m with OM3 multimode fiber or
up to 400 m with OM4 multimode fiber
LC
10Gb LR SFP+ (90Y9412) 10GBASE-LR 1310 nm single-mode fiber cable up to 10 km LC
Direct attach cable 10GSFP+Cu SFP+ DAC cables up to 7 m (see Table 3) SFP+
1 Gb Ethernet
RJ-45 ports (fixed) 1000BASE-T UTP Category 5, 5E, and 6 up to 100 meters RJ-45
1Gb RJ-45 SFP (00FE333) 1000BASE-T UTP Category 5, 5E, and 6 up to 100 meters RJ-45
1Gb SX SFP (81Y1622)
1/10Gb SFP+ (00MY034)
1000BASE-SX Up to 30 m with fiber optic cables supplied by Lenovo
(see Table 3); 850 nm multimode fiber cable 50 µ (OM2)
up to 550 m or 62.5 µ (OM1) up to 220 m
LC
1Gb LX SFP (90Y9424) 1000BASE-LX 1310 nm single-mode fiber cable up to 10 km LC
Management ports
Ethernet management port 1000BASE-T UTP Category 5, 5E, and 6 up to 100 meters RJ-45
RS-232 serial console port RS-232 DB-9/RJ-45-to-RJ-45 (comes with the switch) RJ-45
Software features
The G7028 switch has the following software features:
Scalability and performance:
Media access control (MAC) address learning with automatic updates
Static and LACP (IEEE 802.3ad) link aggregation (trunks)
Broadcast/multicast storm control
IGMP snooping for limit flooding of IP multicast traffic
IGMP filtering to control multicast traffic for hosts participating in multicast groups
Configurable traffic distribution schemes over trunk links based on source/destination IP or
MAC addresses, or both
Fast port forwarding for rapid STP convergence
Availability and redundancy:
IEEE 802.1D STP for providing L2 redundancy
IEEE 802.1s Multiple STP (MSTP) for topology optimization
IEEE 802.1w Rapid STP (RSTP) (provides rapid STP convergence for critical delay-sensitive
traffic such as voice or video)
Per-VLAN Rapid STP (PVRST) enhancements
Layer 2 Trunk Failover to support active/standby configurations of network adapter teaming
on servers
Hot Links provides basic link redundancy with fast recovery for network topologies that
require Spanning Tree to be turned off
VLAN support:
Port-based and protocol-based VLANs
Up to 4095 VLANs supported per switch (512 active VLANs), with VLAN numbers 1 - 4095
(4095 is used for management connection only)
802.1Q VLAN tagging support on all ports
802.1x with Dynamic VLAN assignment
Private VLANs
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Virtualization: Virtual Link Aggregation support
Security:
VLAN-based, MAC-based, and IP-based access control lists (ACLs)
802.1x port-based authentication
Multiple user IDs and passwords
User access control
Radius, TACACS+ and LDAP authentication and authorization
Quality of Service (QoS):
Support for IEEE 802.1p, IP ToS/DSCP, and ACL-based (MAC/IP source and destination
addresses, VLANs) traffic classification and processing
Traffic shaping and re-marking based on defined policies
Eight priority queues per port for processing qualified traffic
Weighted random early detection with explicit congestion notification (WRED/ECN)
CPU priority policies (CoPP)
IPv4/IPv6 ACL metering
IP v4 Layer 3 functions:
Host management
IP filtering with ACLs
Support for DHCP client
Support for IGMP snooping and IGMP relay
IP v6 Layer 3 functions:
IPv6 host management
IPv6 filtering with ACLs
Manageability:
Industry-standard CLI (isCLI)
Simple Network Management Protocol (SNMP V1 and V3)
Telnet interface for CLI
SSH and SSH v2
Secure Copy (SCP)
Serial interface for CLI
Firmware image update (TFTP, FTP, or USB storage)
Lenovo XClarity (optional; sold separately) for discovery, inventory, monitoring and events
Monitoring:
Switch LEDs for port status and switch module status indication
Remote Monitoring (RMON) agent to collect statistics and proactively monitor switch
performance
Port mirroring for analyzing network traffic passing through the switch
Change tracking and remote logging with the syslog feature
Ethernet standards
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Ethernet standards
The G7028 switch supports the following Ethernet standards:
IEEE 802.1D Spanning Tree Protocol (STP)
IEEE 802.1s Multiple STP (MSTP)
IEEE 802.1w Rapid STP (RSTP)
IEEE 802.1p Class of Service (CoS) prioritization
IEEE 802.1Q Tagged VLAN (frame tagging on all ports when VLANs are enabled)
IEEE 802.1x port-based authentication
IEEE 802.3 10BASE-T Ethernet
IEEE 802.3u 100BASE-TX Fast Ethernet
IEEE 802.3ab 1000BASE-T copper twisted-pair Gigabit Ethernet
IEEE 802.3z 1000BASE-SX short range fiber optics Gigabit Ethernet
IEEE 802.3z 1000BASE-LX long range fiber optics Gigabit Ethernet
IEEE 802.3ad Link Aggregation Control Protocol
IEEE 802.3x Full-duplex Flow Control
IEEE 802.3ae 10GBASE-SR short range fiber optics 10 Gb Ethernet
IEEE 802.3ae 10GBASE-LR long range fiber optics 10 Gb Ethernet
10GSFP+Cu SFP+ Direct Attach Copper
Power supplies and cables
The RackSwitch G7028 has one fixed 90 W AC (100 - 240 V) power supply with an IEC 320-C14
connector.
Lenovo offers the optional Lenovo RackSwitch G7000 Redundant Power Supply for those customers who
require redundant power. The optional power supply can support up to four Lenovo RackSwitch G7028 or
G7052 switches.
The part numbers to order the G7000 Redundant Power Supply (RPS) and additional DC cables are listed
in the following table.
Table 5. G7000 RPS and DC cable options
Description
Part
number
Feature
code
Lenovo RackSwitch G7000 Redundant Power Supply 00AY123 A4BZ
Lenovo RackSwitch G7000 1.8m DC to DC RPS Power Cable 00AY121 A4C0
The part number for the G7000 Redundant Power Supply (00AY123) includes the following items:
One Lenovo RackSwitch G7000 Redundant Power Supply (rear-to-front airflow)
Two 1.8 m DC to DC power cables
Generic Rack Mount Kit (2-post)
Power Cord Retention Kit
Warranty Flyer
Important Notices Flyer
Documentation CD-ROM
The G7000 RPS option comes standard with two 1.8 m DC to DC power cables. More DC-to-DC power
cables (part number 00AY121; each part number contains one cable) can be ordered, if needed.
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The G7028 switch and G7000 RPS option ship standard without any AC power cables. The part numbers
and feature codes to order the AC power cables are listed in the following table.
Table 6. AC power cable options
Description
Part
number
Feature
code
Rack power cables
1.5m, 10A/100-250V, C13 to IEC 320-C14 Rack Power Cable 39Y7937 6201
1.8m, 10A/100-250V, 2xC13PM to IEC 320-C14 Rack Power Cable None* 6568
2.8m, 10A/100-250V, C13 to IEC 320-C14 Rack Power Cable None* 6311
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 line cords
Argentina 10A/250V C13 to IRAM 2073 2.8m line cord 39Y7930 6222
Australia/NZ 10A/250V C13 to AS/NZ 3112 2.8m line cord 39Y7924 6211
Brazil 10A/125V C13 to NBR 6147 2.8m line cord 39Y7929 6223
China 10A/250V C13 to GB 2099.1 2.8m line cord 39Y7928 6210
Denmark 10A/250V C13 to DK2-5a 2.8m line cord 39Y7918 6213
European 10A/230V C13 to CEE7-VII 2.8m line cord 39Y7917 6212
India 10A/250V C13 to IS 6538 2.8m line cord 39Y7927 6269
Israel 10A/250V C13 to SI 32 2.8m line cord 39Y7920 6218
Italy 10A/250V C13 to CEI 23-16 2.8m line cord 39Y7921 6217
Japan 12A/125V C13 to JIS C-8303 2.8m line cord 46M2593 A1RE
Korea 12A/250V C13 to KETI 2.8m line cord 39Y7925 6219
South Africa 10A/250V C13 to SABS 164 2.8m line cord 39Y7922 6214
Switzerland 10A/250V C13 to SEV 1011-S24507 2.8m line cord 39Y7919 6216
Taiwan 10A/250V C13 to CNS 10917-3 2.8m line cord 00CG265 A53E
Taiwan 15A/125V C13 to CNS 10917-3 2.8m line cord 00CG267 A53F
United Kingdom 10A/250V C13 to BS 1363/A 2.8m line cord 39Y7923 6215
United States 10A/125V C13 to NEMA 5-15P 4.3m line cord 39Y7931 6207
United States 10A/250V C13 to NEMA 6-15P 2.8m line cord 46M2592 A1RF
* Available for factory-built custom configurations and solutions only.
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