Chapter 1. Introduction to IBM System Networking 10Gb Ethernet products 15
1.4.3 Features and specifications
In this section, we list some of the hardware and software features and specifications of the
RackSwitch G8124. For more details about these features, see Chapter 2, “IBM System
Networking Switch 10Gb Ethernet switch features” on page 51.
Performance
The performance specifications are:
򐂰 100% line rate performance
򐂰 Latency under 700 ns
򐂰 480 Gbps non-blocking switching throughput (full duplex)
Hardware features
Here are the hardware models available for the RackSwitch G8124:
򐂰 Standard models:
RackSwitch G8124R (Rear-to-Front) IBM PN 0446017: The Rear-to-Front airflow is
ideal for servers or blade chassis with ports in the back of the rack.
RackSwitch G8124F (Front-to-Rear) IBM PN 7309BF9: The Front-to-Rear airflow is
ideal for IBM iDataplex or when you need ports in the front of the rack.
RackSwitch G8124DC (DC Power) IBM PN 7309CD9: The rear-to-Front airflow is ideal
for servers or blade chassis with ports in the back of the rack.
򐂰 Enhanced models:
RackSwitch G8124E-R (Rear-to-Front) IBM PN 7309BR6: The Rear-to-Front airflow is
ideal for servers or blade chassis with ports in the back of the rack.
RackSwitch G8124E-F (Front-to-Rear) IBM PN 7309BF7: The Front-to-Rear airflow is
ideal for IBM iDataplex or when you need ports in the front of the rack.
Here are the hardware features for the RackSwitch G8124:
򐂰 Interface options:
Twenty-four 10G SFP+ fiber connectors.
2x 10/100/1000 Ethernet RJ45 ports for management.
One mini-USB Console port for management that provides an additional means to
install software and configure the switch module. This USB-style connector enables
connection of a special serial cable that is supplied with the switch module.
Server-like port orientations, enabling short and simple cabling.
Active DAC support for interoperability with Cisco Nexus 5k and Brocade.
򐂰 LEDs:
System LEDs to indicate status.
LEDs to indicate master/member
2
.
򐂰 Airflow:
Rear-to-front cooling.
Redundant variable speed fans for reduced power draw.
2
Reserved for future OS releases
16 Implementing IBM System Networking 10Gb Ethernet Switches
򐂰 Power:
The AC-Powered G8124 has dual load-sharing internal power modules, with 50 - 60
Hz and 100 - 240 VAC auto-switching per module.
The nominal power for the G8124 ranges from 115 W to 168 W depending on the
speed of the port (1G/10G), type of transceivers (SR or DAC), and number of
active ports.
򐂰 Mean time between failures (MTBF): 189,060 hrs with ambient operating temperature of
40 ºC. MTBF is calculated by using the Telcordia Technologies Reliability Prediction
Procedure for Electronic Equipment (SR-332 issue 2), Parts Count (method 1 case 1)
failure rate data.
Figure 1-7 shows front view of the RackSwitch G8124 with the different ports that are
described previously. Figure 1-8 shows the rear view of the switch for both the AC and
DC models.
Figure 1-7 RackSwitch G8124 front panel
Figure 1-8 RackSwitch G8124 rear panel (AC and DC models)
Software features
The software features for the RackSwitch G8124 are:
򐂰 Security:
–RADIUS
TACACS+
RackSwitch G8124 Rear Panel (AC Models)
RackSwitch G8124 Rear Panel (DC Models)
Chapter 1. Introduction to IBM System Networking 10Gb Ethernet products 17
–SCP
Wirespeed filtering: Allow and deny
SSH v1 and v2
HTTPS Secure BBI
Secure interface login and password
MAC address move notification
Shift B Boot menu (password recovery/factory default)
򐂰 VLANs:
Port-based VLANs
4096 VLAN IDs supported
1 k VLANs (802.1Q)
Private VLAN Edge
򐂰 FCoE/Lossless Ethernet:
802.1 Data Center Bridging
Priority-based Flow Control (PFC)
Enhanced Transmission Selection (ETS)
Data Center Bridge Exchange protocol (DCBX)
FIP Snooping
Fibre Channel over Ethernet (FCoE)
Converged Enhanced Ethernet (CEE)
򐂰 Trunking:
–LACP
Static Trunks (EtherChannel)
Configurable Trunk Hash algorithm
򐂰 Spanning Tree:
Multiple Spanning Trees (802.1 s)
Rapid Spanning Tree (802.1w)
PVRST+
Fast Uplink Convergence
BPDU guard
򐂰 Quality of Service:
QoS 802.1p (priority queues)
DSCP remarking
Metering
򐂰 Routing protocols:
RIP v1/v2
–OSPF
–BGP
򐂰 High availability:
Uplink failure detection
Hot Links
–VRRP
Active MultiPath (AMP)
򐂰 Multicast:
IGMP Snoopingv1, v2, and v3 with 2 K IGMP groups
Protocol Independent Multicast (PIM sparse mode/dense mode)

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