®
IBM System Networking RackSwitch G8000
IBM Redbooks Product Guide
IBM® System Networking 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 1GbE RJ45 ports, four 1G SFP ports, and standard
redundant power supplies along with up to four optional 10GbE SFP+ or CX4 ports. Unlike most rack
equipment that cools from side to side, the IBM RackSwitch G8000 has rear-to-front airflow or
front-to-rear that matches server airflow.
Figure 1. IBM System Networking RackSwitch G8000
Did you know?
The IBM RackSwitch G8000 comes standard with redundant power supplies and 2-post rail kits.
The IBM 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.
IBM VMready® switch-resident software reduces the complexity of configuring and managing virtual
machines throughout the network.
IBM Networking Operating System (Networking OS) software features deliver seamless,
standards-based integration into existing upstream switches.
The IBM 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.
IBM System Networking RackSwitch G8000 1
Part number information
Table 1 lists the part numbers for ordering switches and additional options.
Table 1. IBM part numbers and feature codes for ordering (part 1)
Description IBM System x® part number
IBM System Networking RackSwitch G8000 (rear to front cooling) 0446013
IBM System Networking RackSwitch G8000 (front to rear cooling) 7309CFC
1 Gb options
IBM SFP RJ45 Transceiver (Withdrawn) 81Y1618
IBM SFP RJ45 Transceiver 00FE333
IBM SFP SX Transceiver 81Y1622
IBM SFP LX Transceiver 90Y9424
0.6 m Blue Cat5e Cable 40K5679
1.5 m Blue Cat5e Cable 40K8785
3 m Blue Cat5e Cable 40K5581
10 m Blue Cat5e Cable 40K8927
25 m Blue Cat5e Cable 40K8930
10 Gb options
IBM RackSwitch 10Gb Dual-Port SFP+ Uplink Module 46C3417
IBM RackSwitch 10Gb Dual-Port CX4 Uplink Module 46C3421
IBM SFP+ SR Transceiver 46C3447
IBM SFP+ LR Transceiver 90Y9412
IBM SFP+ ER Transceiver 90Y9415
0.5 m IBM Passive DAC SFP+ Cable 00D6288
1 m IBM Passive DAC SFP+ Cable 90Y9427
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
5 m IBM Passive DAC SFP+ Cable 90Y9433
7 m IBM Passive DAC SFP+ Cable 00D6151
Miscellaneous options
IBM System Networking Adjustable 19" 4 Post Rail Kit 00D6185
IBM System Networking Recessed 19" 4 Post Rail Kit 00CG089
Air Inlet Duct for 382 mm RackSwitch (Requires IBM System Networking Adjustable 19"
4 Post Rail Kit)
00D6062
1 m LC-LC Fiber Cable (networking) - Optical 88Y6851
5 m LC-LC Fiber Cable (networking)- Optical 88Y6854
25 m LC-LC Fiber Cable (networking) - Optical 88Y6857
IBM System Networking RackSwitch G8000 2
IBM System Networking RackSwitch G8000 3
Table 1. IBM part numbers and feature codes for ordering (part 2)
Description
ServicePacs (available in select countries)
3-year on-site repair 24x7 two-hour response 67567MN
3-year on-site repair 24x7 four-hour response 67567MM
3-year on-site repair 9x5 four-hour response 67567MK
4-year on-site repair 24x7 two-hour response 67567MS
4-year on-site repair 24x7 four-hour response 67567MR
4-year on-site repair 9x5 four-hour response 67567MQ
4-year on-site repair next business day 67567MP
5-year on-site repair 24x7 two-hour response 67567MW
5-year on-site repair 24x7 four-hour response 67567MV
5-year on-site repair 9x5 four-hour response 67567MU
5-year on-site repair next business day 67567MT
IBM System x part number
Note: Small form-factor pluggable plus (SFP+) and SFP transceivers are not included.
The module part numbers include (Table 2):
One IBM RackSwitch G8000
Generic Rail Mount Kit (2-post)
Mini-USB to DB9 serial cable (3 m)
Publication Group
An IBM limited 3-year hardware warranty
Models shipped after April 5, 2011 include a 3-year software upgrade license, providing entitlement to
upgrades over that period.
IBM System Networking RackSwitch G8000 4
Note: Make sure that you add two power cords to your configuration, based on the country in which you
plan to use the switches (Table 2).
Table 2. Module part numbers
Part number Description
39Y7917 Power Cord Europe AC plug 10A/250 V; OPT
39Y7918 Power Cord Europe (Denmark) AC plug 10A/250 V; OPT
39Y7919 Power Cord Europe (Switzerland) AC plug 10A/250 V; OPT
39Y7920 Power Cord Europe (Israel) AC plug 10A/250 V; OPT
39Y7922 Power Cord Europe (South Africa) AC plug 10A/250 V; OPT
39Y7923 Power Cord UK AC plug 13A/250 V; OPT
39Y7924 Power Cord Australia AC plug 10A/250 V; OPT
39Y7925 Power Cord Korea AC plug 10A/250 V; OPT
39Y7926 Power Cord Japan AC plug 10A/250 V; OPT
46M2593 (all 7309-XXX models) 2.8 m, 100 V, C13 to JIS C-8303 (Japan)
39Y7927 Power Cord India AC plug 10A/250 V; OPT
39Y7928 Power Cord China AC plug 16A/250 V; OPT
39Y7929 Power Cord Brazil AC plug 16A/250 V; OPT
39Y7930 Power Cord Uruguay/Argentina AC plug 16A/250 V; OPT
39Y7931 Power Cord US/Canada AC plug 10A/250 V; OPT
46M2592 (all 7309-XXX models) 2.8 m, 10A/250 V, C13 to NEMA 6-15P (US)
IBM System Networking RackSwitch G8000 5
Summary: IBM System Networking RackSwitch G 8000
The IBM System Networking RackSwitch G8000 offers the following benefits:
High performance: The G8000 provides up to 176 Gbps throughput and supports up to four 10 G
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
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.
o
USGv6 Testing Program Report (USGv6-V1):
http://public.dhe.ibm.com/common/ssi/ecm/en/qcl12356usen/QCL12356USEN.PDF
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, HotLink™, Uplink Failure Detection (UFD)™,
IGMP V3 snooping, and OSPF.
Seamless interoperability: Switches interoperate seamlessly with other vendors' upstream switches.
See the following resources:
o
Tolly Functionality and Certification: RackSwitch G8000, G8100, and G8124 and Cisco Catalyst
Interoperability Evaluation:
® hypervisor.
http://www-01.ibm.com/common/ssi/cgi-bin/ssialias?infotype=SA&subtype=WH&htmlfid=QCL123
70USEN#loaded
o
Tolly functionality and certification and Cooperative Interoperability Evaluation with the Cisco
Nexus 5010: http://public.dhe.ibm.com/common/ssi/ecm/en/qcl12346usen/QCL12346USEN.PDF
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
This section lists the features and specifications.
Performance
The performance features are:
Full Line rate performance
176 Gbps (full duplex) switching architecture
132 million packets per second (mpps)
IBM System Networking RackSwitch G8000 6
IBM System Networking RackSwitch G8000 7
Hardware features
Figure 2 shows the front of the switch; Figure 3 shows the rear of the switch.
Figure 2. Front of switch
Figure 3. Rear of switch
The hardware features are as follows:
Models
o
IBM System Networking RackSwitch G8000 Rear-toFront : For ports located in the rear of the
rack to match System x and IBM BladeCenter® designs
o
IBM System Networking RackSwitch G8000 Front to Rear: For ports located in the front of the
rack to match airflow of IBM iDataPlex® and NeXtScale systems
Interface options: Forty-four 10/100/1000 + four 1G SFP ports
o
Two port expansion slots for uplink modules
Dual-port 10GbE SFP+ module
Dual-port 10GbE CX-4 module
o
One fixed mini USB console port for serial access
Dimensions: 17.3” wide, 15” deep, 1 RU high
Weight: 5.45 kg (11.99 lb)
Airflow: Front-to-rear or rear-to-front cooling and redundant variable speed fans to reduce power draw
Power
o
The AC-Powered G8000 has dual load-sharing internal power modules, operating at 120 W, 50 60 Hz, 100-240 VAC auto switching per module.
IBM System Networking RackSwitch G8000 8
Rack installation kit
o
Generic Rack Mount Kit (2-post), which comes as standard
o
Optional IBM System Networking Adjustable or Recessed 19" 4 Post Rail Kit
o
G8000 switches, which can be mounted vertically or horizontally
LEDs
o
System LEDs to indicate status
o
Stacking LEDs to indicate master/member
Environmental specifications
The environmental specifications are:
Temperature: ambient operating: 0º C to +40º C
Relative humidity: non-condensing, operating 10 - 90%
Altitude: operating 3,050 m (10,000 feet)
Acoustic noise: less than 65 dB
Heat dissipation: 520 BTU/hour
Cable management
o
Intuitive LEDs for port identification and cable management
o
Server-like port orientations enable short and simple cabling
Mean time between failure (MTBF): 195,000 hours with ambient operating temperature of 40º C
MTBF is calculated using the Telcordia Technologies Reliability Prediction Procedure for Electronic
Equipment (SR-332 issue 2), Parts Count (method 1 case 1) failure rate data.
Software features
See the IBM Networking Operating System data sheet for the most current updates:
http://public.dhe.ibm.com/common/ssi/ecm/en/qcd03010usen/QCD03010USEN.PDF
The software features are:
Security
o
802.1x with VLAN assignment
o
Private VLAN edge
o
RADIUS
o
TACACS+
o
LDAP
o
Wire Speed Filtering
o
Flexible ACL combinations - L2-L4 criteria: Source and Destination MAC, IP, TCP/UDP Ports
o
IPv6 IPSEC/IKEv2
o
Telnet
o
SSH v1, v2
o
HTTPS Secure BBI
o
MAC address move notification
o
SCP
o
Secure Interface Login and Password
o
Shift B Boot menu (Password Recovery/Factory Default)
IBM System Networking RackSwitch G8000 9
VLANs
o
Port-based VLAN
o
4096 VLAN IDs supported
o
1024 Active VLANs (802.1Q)
o
802.1x with Dynamic VLAN assignment
o
Private VLAN Edge
Trunking
o
LACP (802.3ad)
o
Static Trunks (EtherChannel)
o
Configurable Trunk Hash algorithm
o
Cross Stack Trunks
o
Trunk Hashing support (RTAG 7)
Spanning Tree
o
Multiple Spanning Tree (802.1s)
o
Rapid Spanning Tree (802.1w)
o
Fast Uplink Convergence
o
PVRST+
o
BPDU guard
Quality of service (QoS)
o
QoS 802.1p (Priority Queues)
o
DSCP remarking
o
DiffServ IPv4 and IPv6
o
Weighted round-robin
o
Metering
o
4 MB buffers
Routing protocols
o
IPv4, IPv6
o
128 static routes
o
Layer 2/3 static routes
o
RIP v1/v2
o
OSPF v2
o
OSPF v3 (IPv6)
o
DHCP Relay
o
BGP
o
VRRP
High availability
o
Uplink failure detection
o
Hot links™
o
Virtual Router Redundancy support (VRRP)
o
Layer 2 failover
Multicast
o
IGMP v1, v2, v3 Snooping with 2 K IGMP groups
o
IPv6 MLDv2
Monitoring
o
Port mirroring
o
ACL-based mirroring
o
sFlow Version 5
Virtualization
o
VMready VI API support
o
Virtual switch stacking with up to six switches
IBM System Networking RackSwitch G8000 10
Management features
Clients:
System Networking Switch Center (SNSC) (optional)
isCLI (Cisco-like)
Browser-based client, SSH, or Telnet
Netboot
Standard protocols
The standard protocols are:
SNMP v1, v2c, v3
RMON
Secondary NTP support
Accept DHCP IP address assignment
LLDP
IPv6 Base RFCs
16 K MAC table
9 K jumbo frames
802.3X flow control
Upgrades
The upgrades are:
Upgrade firmware via serial or TFTP
Dual software images
Popular configurations
Popular configurations are:
Rack-optimized server aggregation 1 GbE attached rack servers (Figure 4)
o
High-concentration of rack-optimized servers, for example:
System x 1U or 2U servers with a 1G adapter installed
System x 4U servers with multiple 1G connections per server
IBM BladeCenter® using any of the following modules in the chassis:
o
Layer 2/3 Copper and Fiber Gigabit Ethernet Switch Modules for IBM BladeCenter
o
1/10Gb Uplink Ethernet Switch Module for IBM BladeCenter
o
Intelligent Copper Pass-Thru Module for IBM BladeCenter
o
Server Connectivity Module for IBM BladeCenter
o
Low-profile, high-performance, 48-port GbE switch needed to perform aggregation function per
rack
IBM System Networking RackSwitch G8000 11
Figure 4 shows rack optimized server aggregation 1GbE attached rack servers.
Figure 4. Rack optimized server aggregation 1GbE attached rack servers
Table 4 lists the features and benefits.
Table 4. Features and benefits
Features Benefits
Line-rate, non-blocking, all 48 ports
Less than 4 micro-seconds latency Faster application response times.
Four 10GbE uplink ports (40 Gb bandwidth to the core or
upstream switch)
Standards-based Layer 2/3 protocols, industry standard
CLI
Supports massive compute and virtualization workloads
Minimal oversubscription: 1:08 (~1 to 1).
Interoperates with existing network. No learning curve.
.
IBM System Networking RackSwitch G8000 12
Rack-optimized server aggregation logical design (Figure 5); the design goal is to interoperate with an
existing Layer 2/3 switch and deploy G8000s at the Data Center Edge:
o
Logical configuration: Configure G8000s for Layer 2. Apply VLAN domains (1 and 2) at Core
switches.
o
Full Layer 2/3 feature set: STP, MSTP, RSTP, PVRST+; RIP v1/2, static routes, and OSPF.
o
Security: 802.1X; RADIUS/TACACS+; Wire Speed ACLs, SSH v1, v2; HTTPS Secure BBI.
o
QoS: Up to eight queues/port, IEEE 802.1p and DiffServ prioritization.
Figure 5. Rack optimized server aggregation logical design
IBM System Networking RackSwitch G8000 13
Server 1Gb aggregation and connection to IBM Storage has the following benefits:
An excellent entry-level price point for a data center environment
o
For those requiring low latency, consider the G8052.
Good for connectivity to Network Attach Storage
o
IBM Real-Time Compression Appliance™ (Figure 6)
o
IBM Scale Out Network Attached Storage
o
IBM System Storage
Ideal for connectivity to iSCSI
o
IBM Storwize® V7000 Midrange Disk System
o
IBM System Storage SAN Volume Controller
o
IBM System Storage DS3500 and 5000 (Figure 7)
®
N Series Gateway for SAN Storage Environments
Figure 6. IBM RackSwitch G8000 with IBM Real-Time Compression Appliance
IBM System Networking RackSwitch G8000 14
Figure 7. IBM RackSwitch G8000 with DS3500
j
Related publications
For more information see the following publications:
Application Guide (6.5): https://www-304.ibm.com/support/docview.wss?uid=isg3T7000379&wv=1
ISCLI Command Reference (6.5):
https://www-304.ibm.com/support/docview.wss?uid=isg3T7000381&wv=1
Menu-Based CLI Reference (6.5):
https://www-304.ibm.com/support/docview.wss?uid=isg3T7000382&wv=1
Browser-Based Interface (BBI) Quick Guide (6.5):
https://www-304.ibm.com/support/docview.wss?uid=isg3T7000380&wv=1
For the current documentation of more recent OS releases visit:
http://www-947.ibm.com/support/entry/portal/Documentation
IBM US Announcement Letter for G8000 models:
o
Rear-to-front model:
http://ibm.com/common/ssi/cgi-bin/ssialias?infotype=an&subtype=ca&&htmlfid=897/ENUS110-136
o
Front-to-rear model:
http://ibm.com/common/ssi/ShowDoc.
sp?docURL=/common/ssi/rep_ca/2/897/ENUS111-072
IBM System Networking RackSwitch G8000 15
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IBM System Networking RackSwitch G8000 16
This document was created or updated on July 1, 2014.
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IBM System Networking RackSwitch G8000 17
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