IBM System Networking RackSwitch G7028

IBM Redbooks Product Guide


Abstract

This IBM® Redbooks® Product Guide describes the IBM System Networking RackSwitch™ G7028. The 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 using 1 GbE networking switches while 10 GbE continues to grow for customer solutions requiring greater I/O bandwidth. The RackSwitch G7028 is an ideal solution for data center customers looking for an economical 1 Gb and 10 Gb connectivity solution.

For related information about this topic, refer to the following IBM Redbooks publication:
Introduction to Storage Area Networks and System Networking, SG24-5470-04

Contents


This IBM® Redbooks® Product Guide describes the IBM System Networking RackSwitch™ G7028. The 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 using 1 GbE networking switches while 10 GbE continues to grow for customer solutions requiring greater I/O bandwidth. The RackSwitch G7028 is an ideal solution for data center customers looking for an economical 1 Gb and 10 Gb connectivity solution.

The RackSwitch G7028 (Figure 1) is a top-of-rack data center switch that delivers excellent non-blocking, wire speed performance at an attractive price point. It supports twenty-four 10/100/1000BASE-T RJ45 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 that matches the IBM System x and Power Systems rack servers and IBM BladeCenter and Flex System chassis for maximizing hot and cold aisle data center designs. IBM offers the IBM System Networking RackSwitch G7000 Redundant Power Supply (Figures 5 and 6) for those customers requiring redundant power; it can support up to four RackSwitch G7028 switches.


Figure 1. IBM System Networking RackSwitch G7028 (Front)


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 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.
  • IBM Networking Operating System software features deliver seamless, standards-based integration into existing upstream switches.


Summary: IBM System Networking RackSwitch G7028

The RackSwitch G7028 provides the following features:
  • Performance: The RackSwitch G7028 provides up to 128 Gbps of throughput and supports four SFP+ 10 G 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 consumes just 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 L2 trunk failover, advanced VLAN-based failover, HotLink, and Uplink Failure Detection (UFD).
  • Seamless interoperability: IBM switches interoperate seamlessly with other vendors' upstream switches.

The RackSwitch G7028 comes with an IBM limited three-year hardware warranty, including three years of software upgrades.

Figure 2 shows an example of data center airflow to maintain hot and cold aisles.

Data center airflow to maintain hot and cold aisles
Figure 2. Data center airflow to maintain hot and cold aisles


Features and specifications

This section lists the features and specifications.

Performance

Here are the performance features and specifications:
  • Single switch ASIC design
  • Full line rate performance
  • 128 Gbps (full duplex) switching architecture
  • Low latency: 3.3 microseconds
  • 96 million packets per second (mpps)

Hardware features

The front and rear views are shown in Figures 3 and 4.

Front view of the RackSwitch G7028
Figure 3. Front view of the RackSwitch G7028

Rear view of the RackSwitch G7028
Figure 4. Rear view of the RackSwitch G7028

Here are the RackSwitch G7028 hardware features:
  • Ports in the rear of the rack to match System x®, Power Systems, IBM Flex System™, PureSystems™, and IBM BladeCenter® designs
  • Interface options
    • Twenty-four 10/100/1000BASE-T ports (RJ-45).
    • Four 10 GbE SFP+ ports.
    • One USB port for external mass storage devices.
    • One out of band (OOB) Ethernet management port.
    • RS-232 serial console port
  • Dimensions: 17.3 in. wide, 15 in. deep, 1 RU high
  • Weight: 5.3 kg (11.68 lb)
  • Airflow: Rear-to-front cooling
  • Power:
    • Internal power supply.
    • External power supply (Optional) to help provide redundancy.
    • Typical power for the RackSwitch G7028 is approximately 45 W and varies depending upon operation conditions.
  • Rack Installation Kit
    • Generic Rail Mount Kit (2-post).
    • Optional, flexible 4-post mounting options for both the server rack and the datacom rack.
  • System LEDs indicate the status
  • Environmental specifications
    • Temperature: Ambient operating: 0 to 40 ºC.
    • Relative humidity: Non-condensing, operating 10 - 90%
    • Altitude: Operating 1,800 m (6,000 feet)
    • Acoustic noise: Less than 65 dB
    • Typical heat dissipation: 155 BTU/hour

Software features

Here are the RackSwitch G7028 software features:
  • Security
    • LDAP
    • 802.1x with VLAN assignment (EAP)
    • RADIUS
    • TACACS+
    • Wire Speed Filtering: Allow and Deny
    • SSH v1 and v2
    • HTTPS Secure BBI
    • Secure Copy Protocol (SCP)
    • Secure Interface Login and Password
  • Management
    • MAC address move notification
    • Shift B Boot menu (Password Recovery/Factory Default)
    • Management ACLs
    • Netboot
  • VLANs
    • Port-based VLAN
    • 4096 VLAN IDs are supported
    • 512 Active VLANs (802.1Q)
    • 802.1x with Dynamic VLAN assignment
    • Private VLAN
  • Trunking
    • LACP
    • Minimum links per LACP
    • Static trunks (Etherchannel)
    • Configurable trunk hash algorithm
    • Ingress-port-based hashing
    • Enhanced reporting of statistics
  • Virtual Link Aggregation (vLAG)
    • L2 environment and IGMP supported
    • IGMP Snooping
  • Spanning Tree
    • Multiple Spanning Tree (802.1 s)
    • Rapid Spanning Tree (802.1 w)
    • PVRST+
    • Auto assignment of VLANs to STG
    • BPDU Guard
    • Root Guard
    • Loop Guard
  • Quality of service
    • QoS 802.1p
    • DSCP remarking
    • Metering
    • 4 MB shared packet buffer
    • Weighted random early detection with explicit congestion notification (WRED/ECN)
    • CPU priority policies (CoPP)
  • High availability
    • HotLinks
    • Layer 2 Failover
  • Multicast
    • IGMP v1, v2, and v3 snooping with 256 IGMP groups
  • Monitoring
    • Port mirroring
    • ACL logging
    • CPU logging

Management features

Here are the RackSwitch G7028 management features for the clients:
  • ISCLI (Cisco-like)
  • Browser-based interface Telnet/ssh

Standard protocols

Here are the RackSwitch G7028 standard protocols:
  • SNMP v1, v2c, and v3
  • IPv6
  • RMON
  • Secondary NTP Support
  • DHCP Client
  • LLDP
  • 8K MAC Table
  • 12 K Jumbo Frames
  • 802.3X Flow Control

You can upgrade the firmware through serial or TFTP.


Summary: IBM System Networking RackSwitch G7000 Redundant Power Supply

The front and rear views of the IBM System Networking RackSwitch G7000 Redundant Power Supply are shown in Figures 5 and 6.

Front view of the RackSwitch G7000 Redundant Power Supply
Figure 5. Front view of the RackSwitch G7000 Redundant Power Supply

Rear view of the RackSwitch G7000 Redundant Power Supply
Figure 6. Rear view of the RackSwitch G7000 Redundant Power Supply

Here are the RackSwitch G7000 Redundant Power Supply (RPS) hardware features:
  • Model: IBM RackSwitch G7000 RPS (Rear-to-Front cooling) connections in the rear of the rack to match the RackSwitch G7028 switch.
  • Connections: Four DC connections to connect to the RackSwitch G7028 switch.
  • Dimensions: 17.3 in. wide, 15 in. deep, 1 RU high.
  • Weight: 11.9 lb (5.4 kg).
  • Airflow: Rear-to-front cooling.
  • Power:
    • Internal power supply
    • Typical power for the G7000 RPS is approximately 244 W and varies depending upon operating conditions.
  • Rack Installation Kit:
    • Generic Rail Mount Kit (2-post)
    • Optional, flexible 4-post mounting options for both the server rack and the datacom rack
  • LEDs: System LEDs to indicate status.
  • Environmental specifications.
    • Temperature: Ambient operating: 0 to 40 ºC
    • Relative humidity: Non-condensing, operating 10 - 90%
    • Altitude: Operating 1,800 m (6,000 feet)
    • Acoustic noise: Less than 65 dB


Popular configurations

This section describes popular configurations of the RackSwitch G7028.

Rack-optimized server aggregation of 1 GbE attached rack servers

Some of the typical deployments for the RackSwitch G7028 include Data Center Top of Rack, Low Cost L2 connection, and remote offices for various workloads, such as email, file and print services, collaborative, web serving, and cloud.

Here are examples of possible high-concentration configurations for rack or blade server implementations:
  • Power Systems or System x 1U or 2U servers with a 1 GbE adapter installed
  • Power Systems or System x 4U servers with multiple 1 GbE adapters per server
  • IBM BladeCenter or IBM Flex System using any of the following modules in the chassis:
    • IBM BladeCenter Layer 2/3 Copper and Fiber Gigabit Ethernet Switch Modules
    • IBM BladeCenter Layer 2-7 Gigabit Ethernet Switch Module
    • IBM BladeCenter 1/10 Gb Uplink Ethernet Switch Module
    • Intelligent Copper Pass-Thru Module for IBM BladeCenter
    • Server Connectivity Module for IBM BladeCenter
    • IBM Flex System using EN2092 Ethernet modules in the chassis

Table 1 lists the features and benefits of the RackSwitch G7028 for server aggregation.

Table 1. Features and benefits of the RackSwitch G7028 for server aggregation
FeaturesBenefits
Line-rate, non-blocking, all 24 portsSupports compute and virtualization workloads
3.3 microseconds latencyFast application response times
Four 10 GbE uplink ports (40 Gb bandwidth to the core or upstream switch)No oversubscription, full upstream throughput
Standards-based Layer 2 protocols, industry standard CLIInteroperates with existing network with no learning curve

Figure 7 shows rack-optimized server aggregation for 1 GbE attached rack servers or a Flex System chassis.

Rack-optimized server aggregation for 1GbE attached rack servers or a Flex System chassis
Figure 7. Rack-optimized server aggregation for 1GbE attached rack servers or a Flex System chassis

Here are the features of the Server 1 GbE aggregation and connection to IBM System Storage:
  • A good price/performance point for a data center environment with 1 Gigabit performance and investment protection for 10 GbE
  • Good for connectivity to network-attached storage
    • IBM Real-time Compression Appliance
    • IBM Scale Out Network Attached Storage
    • IBM System Storage N Series Gateway for SAN Storage Environments
    • IBM Storwize® V7000 Unified Disk System
  • Ideal for connectivity to iSCSI
    • IBM Storwize® V3700 or Storwize V7000 Midrange Disk System
    • IBM System Storage SAN Volume Controller
    • IBM System Storage DS3500 or 5000
Figure 8 shows the RackSwitch G7028 with Storwize V7000 or Storwize V3700.

RackSwitch G7028 with Storwize V7000 or Storwize V3700
Figure 8. RackSwitch G7028 with Storwize V7000 or Storwize V3700


Ordering information

Table 2 shows the IBM System x® part numbers and IBM Power Systems™ MTMs and Feature Codes for ordering the RackSwitch G7028 and additional options.

Table 2. IBM part numbers and feature codes for ordering
DescriptionSystem xPower Systems MTM/FC
IBM System Networking RackSwitch G7028 (Rear-to-Front)7309BAX7120-24L
1 GbE options
IBM SFP RJ45 Transceiver (Last order date 24 June 2014)81Y1618EB29
IBM SFP RJ45 Transceiver00FE333EB29
IBM SFP SX Transceiver81Y1622EB2A
IBM SFP LX Transceiver90Y9424ECB8
0.6 m Blue Cat5e Cable40K5679ECB0
1.5 m Blue Cat5e Cable40K8785ECB2
3 m Blue Cat5e Cable40K55811111
10 m Blue Cat5e Cable40K89271112
10 GbE options
IBM SFP+ SR Transceiver46C3447EB28
IBM SFP+ LR Transceiver90Y9412ECB9
0.5 m IBM Passive DAC SFP+ Cable00D6288ECBG
1 m IBM Passive DAC SFP+ Cable*90Y9427ECB4
1.5 m IBM Passive DAC SFP+ Cable00AY764
2 m IBM Passive DAC SFP+ Cable00AY765
3 m IBM Passive DAC SFP+ Cable*90Y9430ECB5
5 m IBM Passive DAC SFP+ Cable*90Y9433ECB6
7 m IBM Passive DAC SFP+ Cable*00D6151ECBH
1 m IBM Active DAC SFP+ Cable95Y0323EN01
3 m IBM Active DAC SFP+ Cable95Y0326EN02
5 m IBM Active DAC SFP+ Cable95Y0329EN03
Miscellaneous options
IBM System Networking Adjustable 19" 4 Post Rail Kit00D6185EU27
Air Inlet Duct for 382 mm RackSwitch**00D6062
Power Supply (comes with two DC to DC cables)00AY123EB2P
IBM System Networking RackSwitch G7000 1.8m DC to DC RPS Power Cable00AY121ELC4
Console Cable Kit Spare90Y9462EUC4
1 m LC-LC Fiber Cable (networking) - Optical88Y6851ECBC
5 m LC-LC Fiber Cable (networking) - Optical88Y6854ECBD
25 m LC-LC Fiber Cable (networking) - Optical88Y6857ECBE
IBM ServicePac offerings (available in select countries)
3-year onsite repair 9x5 four-hour response67586A7
3-year onsite repair 24x7 four-hour response67586A8
4-year onsite repair 9x5 four-hour response67586A9
4-year onsite repair 24x7 four-hour response67586AA
5-year onsite repair 9x5 four-hour response67586AB
5-year onsite repair 24x7 four-hour response67586AC
*Passive cables are not supported for Power Systems 10 Gb NICs. They are used for switch to switch connectivity only.
** Requires IBM System Networking Adjustable 19" 4 Post Rail Kit
Figure 9 shows examples of transceivers and DAC cables.

Examples of transceivers and DAC cables
Figure 9. Examples of transceivers and DAC cables

Figure 10 shows a 2-post Rack Mount Kit.

The 2-post Rack Mount Kit
Figure 10. The 2-post Rack Mount Kit

The Switch module (Figure 1) part number/MTM includes the following items:
  • One RackSwitch G7028 (Rear-to-Front).
  • Generic Rack Mount Kit (2-post).
  • Power Cord Retention Clip.
  • RJ45 to DB9 serial cable (1.8 m).
  • Comes with an IBM limited 3-year hardware warranty with Next Business Day (NBD), 9x5, Customer Replaceable Unit (CRU) warranty service and includes a 3-year software license, providing entitlement to upgrades over that period.
  • Country-specific AC power cords, which are plugged into the power source (wall or PDU), must be ordered separately. For more information about the available power cords for the RackSwitch G7028, see Tables 3 and 4.
The Redundant Power Supply module (see Figures 5 and 6) part number/Feature Code includes the following items:
  • One IBM RackSwitch G7000 Redundant Power Supply.
  • Two DC cables come standard for connectivity of two RackSwitch G7028 switches. Clients can order additional DC cables (to connect up to four RackSwitch G7028 switches).
  • Power Cord Retention Clip.
  • Generic Rack Mount Kit (2-post).
  • Comes with an IBM limited 1-year hardware warranty or the remaining warranty of the RackSwitch G7028 switch (whichever is longer).
  • Country-specific AC power cords, which are plugged into the power source (wall or PDU), must be ordered separately. For more information about the available power cords for the RackSwitch G7028, see Tables 3 and 4.

Note: Make sure that you include power cords that are relevant to your country of purchase. Small form-factor pluggable plus (SFP+) transceivers are not included.

Table 3 lists the part numbers and descriptions for IBM System x.

Table 3. IBM System x part numbers and descriptions
Part numberDescription
39Y7917Power Cord Europe AC plug 10A/250 V; OPT
39Y7918Power Cord Europe (Denmark) 10A/250 V; OPT
39Y7919Power Cord Europe (Switzerland) 10A/250 V; OPT
39Y7920 Power Cord Europe (Israel) 10A/250 V; OPT
39Y7922Power Cord Europe (South Africa) 10A/250 V; OPT
39Y7923 Power Cord UK 13A/250 V; OPT
39Y7924Power Cord Australia/New Zealand 10A/250 V; OPT
39Y7925Power Cord Korea 10A/250 V; OPT
46M2593Power Cord Japan 2.8M AC plug 12A/125V; OPT
39Y7927Power Cord India 10A/250 V; OPT
39Y7928Power Cord China 16A/250 V; OPT
39Y7929Power Cord Brazil 16A/250 V; OPT
39Y7930 Power Cord Uruguay/Argentina 16A/250 V; OPT
00CG265Power Cord Taiwan AC plug 10A/250V, 2.8M; OPT
00CG267Power Cord Taiwan AC plug 15A/125V; 2.8M; OPT
46M25922.8 m, 10A/250 V, C13 to NEMA 6-15P (US/Canada)
39Y79324.3 m, 10A/100-250V, C13 to IEC 320-C14 Rack Power Cable
39Y79371.5 m, 10A/100-250V, C13 to IEC 320-C14 Rack Power Cable
39Y79382.8 m, 10A/100-250V, C13 to IEC 320-C20 Rack Power Cable

Table 4 shows the power cord descriptions and their IBM Power Systems and IBM System Storage® Feature Codes.

Table 4. Power cord descriptions and IBM Power Systems and IBM System Storage Feature Codes
DescriptionFeature code
Power Cord 4.3m (14-ft), Drawer to Wall/IBM PDU (250V/10A)6458
Power Cord 4.3m (14-ft), Drawer to Wall/OEM PDU (250V/15A) U. S.6469
Power Cord 1.8m (6-ft), Drawer to Wall (125V/15A)6470
Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU (125V/15A)6471
Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU (250V/16A)6472
Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU (250V/10A)6473
Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU, (250V/13A)6474
Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU, (250V/16A)6475
Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU, (250V/10A)6476
Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU, (250V/16A)6477
Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU, (125V/15A or 250V/10A)6488
Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU, (250V/10A)6493
Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU, (250V/10A)6494
Power Cord 4.3m (14-ft), Drawer to Wall/OEM PDU (125V/15A)6660
Power Cord 2.8m (9.2-ft), Drawer to Wall/IBM PDU, (250V/ 10A)6665
Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU, (250V/10A)6680
Power Cord 2.7m (9-ft), Drawer to Wall/OEM PDU, (250V/10A)6671
Power Cord 1.5m (5-ft), Drawer to Wall/OEM PDU, (250V/10A)6672


Related resources

For more information about the RackSwitch G7028, go to ibm.com/support/entry/portal/Documentation and see the following RackSwitch G7028 product resources:
  • IBM RackSwitch G7028 Installation Guide
  • IBM RackSwitch G7028 isCLI Command Reference
  • IBM RackSwitch G7028 Application Guide
  • IBM RackSwitch G7028 Browser-Based Interface Quick Guide

Special Notices

This material has not been submitted to any formal IBM test and is published AS IS. It has not been the subject of rigorous review. IBM assumes no responsibility for its accuracy or completeness. The use of this information or the implementation of any of these techniques is a client responsibility and depends upon the client's ability to evaluate and integrate them into the client's operational environment. publib-b.boulder.ibm.com

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Publish Date
16 January 2014

Last Update
15 July 2014


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