Juniper JUNOSE 11.2.X MULTICAST ROUTING, Configuration Manual

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The interface stack for both of these IOAs is the same as for OCx/STMx/DS3-ATM
interfaces. (See Figure 5 on page 76.)
OCx/STMx POS IOAs
The ES2 4G LM pairs with the ES2-S1 OC12-2 STM4 POS IOA to deliver unchannelized
OC12/STM4 POS operation through two line interfaces. You can install the ES2-S1 OC12-2
STM4 POS IOA in both IOA bays.
The ES2 4G LM also pairs with the ES2-S1 OC48 STM16 POS IOA to deliver unchannelized
OC48/STM16 POS operation through one line interface. In the current release, you can
install the ES2-S1 OC48 STM16 POS IOA in only one of the IOA bays per slot.
Figure 7 on page 79 shows the interface stack for OCx/STMx POS interfaces on the ES2
4G LM.
Figure 7: Interface Stack for OCx/STMx POS Interfaces
Numbering Scheme
When configuring or managing an interface, you must know the numbering scheme for
identifying an interface. The numbering scheme depends on the type of E Series router
that you have.
ERX7xx Models, ERX14xx Models, and the ERX310 Router
Use the slot/port format to identify unchannelized SONET/SDH interfaces. Interfaces
that support APS/MSP also use the APS/MSP channel number .
•
slot—Number of the slot in which the line module resides in the chassis.
In ERX7xx models, line module slots are numbered 2–6; slots 0 and 1 are reserved for
SRP modules. In ERX14xx models, line module slots are numbered 0–5 and 8–13; slots
6 and 7 are reserved for SRP modules. In an ERX310 router , line module slots are
numbered 1–2; slot 0 is reserved for the SRP module.
•
port—Number of the port on the I/O module.
On the OC3-2 GE APS I/O module, you can configure only unchannelized SONET/SDH
interfaces on ports 0 and 1; port 2 is reserved for a Gigabit Ethernet interface.
On I/O modules that support APS/MSP, each primary port has a corresponding
redundant port. The number of the primary port, but not that of the redundant port, is
used to identify the interface. The primary port is above the corresponding redundant
port on the I/O modules.
79 Copyright © 2010, Juniper Networks, Inc.
Chapter 3: Configuring Unchannelized OCx/STMx Interfaces