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PRIMECLUSTER Global Link Services Configuration and AdministrationGuide 4.3Redundant Line Control Function

1.3 System Configuration

Fast switching mode

Figure 1.6 Fast switching mode


NIC switching mode

Figure 1.7 NIC switching mode


Virtual NIC mode

Figure 1.8 Virtual NIC mode


GS linkage mode

Figure 1.9 GS linkage mode


Redundant Line Control function consists of the following components:

Main unit

PRIMEQUEST, PRIMERGY

NIC (Network Interface Cards)

The following Fujitsu adapters or cards can be used:

  • On-board LAN card

  • LAN card supported by PRIMEQUEST and PRIMERGY

Switch/HUB (NIC switching mode, Virtual NIC mode)

IP address information must be configured for switch/HUB, e.g. switch/HUB with SNMP agent

Operating system (OS)

For details about the operating system supported by the redundant line control function, see the GLS Installation Guide.

Interfaces

Physical interface

Generated by each NIC.
(e.g. ethX).

Tagged VLAN interface

Interface (e.g. eth0.2, eth1.3) that is generated through tagged VLAN (IEEE 802.1Q).

In Virtual NIC mode, a tagged VLAN interface (e.g. sha0.X) is generated on a virtual interface for redundant communication of a tagged VLAN.

Virtual interface

Generated through redundant line control (e.g. sha0 and sha1).
Network applications can communicate using a virtual IP address assigned to the virtual interface.
In NIC switching mode, the virtual interface name is used technically although no virtual interface is generated. A logical IP is allocated to the actual network so that the network applications enable communication through the logical IP address.

Network number

Fast switching mode
GS linkage mode

A different network number is assigned to each physical interface and a virtual interface.
In Figure 1.6 Fast switching mode, three network numbers must be prepared for the three interfaces.

NIC switching mode

Only one number is assigned to each network.
No virtual interface is generated

Virtual NIC mode

Only one number is assigned to each network to connect NIC to the same segment.

IP address

Fast switching mode

An IP address must be allocated to each physical interface and a virtual interface. If there are two or more virtual interfaces, an IP address will be allocated to each virtual interface. Both IPv4 address and IPv6 address can be used.

NIC switching mode

An IP address must be allocated to each logical interface. If there are two or more logical interfaces, an IP address will be allocated to each logical interface. Both IPv4 address and IPv6 address can be used.

Virtual NIC mode

Both IPv4 address and IPv6 address can be used as an address form.

GS linkage mode

An IP address must be allocated to each physical interface and a virtual interface. If there are two or more virtual interfaces, an IP address will be allocated to each virtual interface. Only IPv4 can be used.