Juniper JUNOSE 11.2.X MULTICAST ROUTING, Руководство по настройке

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Figure 6 on page 77 shows the interface stack for OCx/STMx POS interfaces.
Figure 6: Interface Stack for OCx/STMx POS and OC48/STM16 Interfaces
OC48 Line Modules
OC48 line modules pair with OC48 FRAME I/O modules to deliver unchannelized
OC48/STM16 POS operation through one line interface.
The OC48 I/O module supports single-mode (intermediate reach or long haul) operation
through an SC full duplex connector.
The interface stack for the OC48/STM16 interfaces is the same as that for OCx/STMx
POS interfaces (Figure 6 on page 77).
The OC48 line module can be installed in the router’s turbo slots, numbered 2 and 4.
When the OC48 line module is installed in a turbo slot, it spans slots 2–3 and 4–5. The
bandwidth of slot 3 or slot 5 is used for a line module in slot 2 or slot 4 if that line module
requires the turbo slot.
NOTE: If a line module is installed in slot 3 or slot 5, and the line module in slot 2 or 4
requires bandwidth, the system configures the line module it detects first. The state of
the other line module is displayed in the
show version command output as disabled
(cfg error).
OC3/STM1 GE/FE Line Module
The OC3/STM1 GE/FE line module pairs with the OC3-2 GE APS I/O module to deliver
unchannelized OC3/STM1 ATM operation through two line interfaces and Gigabit Ethernet
operation through one line interface.
The OC3-2 GE APS I/O module uses a range of small form-factor pluggable transceivers
(SFPs) to support different optical modes and cabling distances, and accepts up to three
LC-style fiber-optic connectors. You can configure ports 0 and 1 for OC3/STM1 ATM
interfaces; port 2 is reserved for a Gigabit Ethernet interface.
The interface stack for OC3/STM1 ATM interfaces on the OC3-2 GE APS I/O module is
the same as for OCx/STMx/DS3-ATM interfaces. (See Figure 5 on page 76.)
For more information about configuring a Gigabit Ethernet interface on this I/O module,
see “OC3-2 GE APS I/O Module” on page 174.
77 Copyright © 2010, Juniper Networks, Inc.
Chapter 3: Configuring Unchannelized OCx/STMx Interfaces