IBM RS/6000 SP, Руководство пользователя

Страница: 207 / 480

Chapter 6. SP Switch Routers 9077
183
6.2 Overview
A physical dependent node, such as an RS/6000 SP Switch Router (Machine
Type 9077), may have multiple logical dependent nodes, one for each
dependent node adapter it contains. If the SP Switch Router contains more than
one adapter, it can route data between SP systems. For the RS/6000 SP Switch
Router, this card is called a Switch Router adapter (F/C 4021). Data transmission
is accomplished by linking the dependent node adapters in the switch router with
the logical dependent nodes located in different SP systems or system partitions.
In addition to the four major dependent node components (see Section 1.4.3,
“Extension nodes” on page 16), the SP Switch Router (dependent node) has a
fifth optional category of components. These components are networking cards
that fit into slots in the SP Switch Router. In the same way that the SP Switch
Router adapter connects the SP Switch Router directly to the SP Switch, these
networking cards enable the SP Switch Router to be directly connected to an
external network. The following networks can be connected to the RS/6000 SP
Switch Router using available media cards:
򐂰
Ethernet 10/100 Base-T
򐂰
FDDI
򐂰 ATM OC-3c (single or multimode fiber)
򐂰 SONET OC-3c (single or multimode fiber)
򐂰 ATM OC-12c (single or multimode fiber)
򐂰 HiPPI
򐂰
HSSI
You can find a full list of these networking cards and other options in Table 6-1 on
page 188.
Figure 6-2 on page 184 shows the SP Switch Router configuration. The SP
Switch Router can be used for high-speed network connections or system
scaling using HIPPI backbones or other communications subsystems, such
as ATM or 10/100 Ethernet.