IBM RackSwitch G7028 User manual

IBM System Networking RackSwitch G7028 1

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IBM System Networking RackSwitch G7028

IBM Redbooks Product Guide

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.

IBM System Networking RackSwitch G7028 2

Summary: IBM System Networking RackSwitch G 7028

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.

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



IBM System Networking RackSwitch G7028 3

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.

Figure 3. Front 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.

IBM System Networking RackSwitch G7028 4

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

IBM System Networking RackSwitch G7028 5

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 G 7000 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.

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

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

IBM System Networking RackSwitch G7028 6

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

IBM System Networking RackSwitch G7028 7

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

Features Benefits

Line-rate, non-blocking, all

24 ports

Supports compute and virtualization workloads

3.3 microseconds latency Fast 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

CLI

Interoperates 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.

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

IBM System Networking RackSwitch G7028 8

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.

Figure 8. RackSwitch G7028 with Storwize V7000 or Storwize V3700

IBM System Networking RackSwitch G7028 9

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 (part 1 of 2)

Description System x Power Systems MTM/FC

IBM System Networking RackSwitch G7028 (Rear-to-Front) 7309BAX 1455-24L

1 GbE options

IBM SFP RJ45 Transceiver 81Y1618 EB29

IBM SFP SX Transceiver 81Y1622 EB2A

IBM SFP LX Transceiver 90Y9424 ECB8

0.6 m Blue Cat5e Cable 40K5679 ECB0

1.5 m Blue Cat5e Cable 40K8785 ECB2

3 m Blue Cat5e Cable 40K5581 1111

10 m Blue Cat5e Cable 40K8927 1112

10 GbE options

IBM SFP+ SR Transceiver 46C3447 EB28

IBM SFP+ LR Transceiver 90Y9412 ECB9

0.5 m IBM Passive DAC SFP+ Cable 00D6288 ECBG

1 m IBM Passive DAC SFP+ Cable* 90Y9427 ECB4

1.5 m IBM Passive DAC SFP+ Cable 00AY764

2 m IBM Passive DAC SFP+ Cable 00AY765

3 m IBM Passive DAC SFP+ Cable* 90Y9430 ECB5

5 m IBM Passive DAC SFP+ Cable* 90Y9433 ECB6

7 m IBM Passive DAC SFP+ Cable* 00D6151 ECBH

1 m IBM Active DAC SFP+ Cable 95Y0323 EN01

3 m IBM Active DAC SFP+ Cable 95Y0326 EN02

5 m IBM Active DAC SFP+ Cable 95Y0329 EN03

*Passive cables are not supported for Power Systems 10 Gb NICs. They are used for switch to switch connectivity

only.

IBM System Networking RackSwitch G7028 10

Table 2. IBM part numbers and feature codes for ordering (part 2 of 2)

Description System x Power Systems MTM /FC

Miscellaneous options

IBM System Networking Adjustable 19" 4 Post Rail Kit 00D6185 EU27

Power Supply (comes with two DC to DC cables) 00AY123 EB2P

IBM System Networking RackSwitch G7000 1.8m DC to DC RPS

Power Cable

00AY121 ELC4

Console Cable Kit Spare 90Y9462 EUC4

1 m LC-LC Fiber Cable (networking) - Optical 88Y6851 ECBC

5 m LC-LC Fiber Cable (networking) - Optical 88Y6854 ECBD

25 m LC-LC Fiber Cable (networking) - Optical 88Y6857 ECBE

IBM ServicePac offerings (available in select countries )

3-year onsite repair 9x5 four-hour response 67586A7

3-year onsite repair 24x7 four-hour response 67586A8

4-year onsite repair 9x5 four-hour response 67586A9

4-year onsite repair 24x7 four-hour response 67586AA

5-year onsite repair 9x5 four-hour response 67586AB

5-year onsite repair 24x7 four-hour response 67586AC

Figure 9 shows examples of transceivers and DAC cables.

Figure 9. Examples of transceivers and DAC cables

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