3Com CoreBuilder 3500, Руководство по внедрению

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60 C
HAPTER
4: P
HYSICAL
P
ORT
N
UMBERING
See Figure 6 later in this chapter for an example.
Additional rules:
■
Port numbering is consecutive, regardless of module type.
■
Numbering skips over an empty slot and continues with the ports
associated with the next occupied slot.
■
Numbering includes unused ports.
For several examples of port numbering, see “Examples of Port
Numbering” later in this chapter.
Supported Module
Types
The port numbering range depends on the type of modules that you have
configured into your system. For example, at Release 2.0.0, the system
supported the following modules:
■
Up to four 10/100BASE-TX Ethernet modules, each with 6 ports that
have RJ-45 connectors
■
Up to four 100BASE-FX Ethernet modules, each with 6 ports that have
SC connectors
■
Up to four 1000BASE-SX or 1000BASE Gigabit Interface Converter
(GBIC) Ethernet modules, each with 1 port (up to four Gigabit
Ethernet ports per system). The 1000BASE GBIC module requires
CoreBuilder 3500 system software at release 1.2.0 or higher. Each
Gigabit Ethernet module uses a trunk resource, so keep track of your
trunk resources (maximum of 4) when you add a Gigabit Ethernet
module. See Chapter 8 for information on trunking and trunking
resources.
■
Up to four FDDI modules, each with 6 ports
■
Any combination of these modules. For example, you can have one
Gigabit Ethernet module in Slot 1 (port 1), one FDDI module in Slot 2
(ports 2–7), one 10/100BASE-TX Ethernet module in Slot 3
(ports 8–13), and one 100BASE-FX Ethernet module in Slot 4
(ports 14–19).