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Numbering Scheme
Interface Specifier
Copyright © 2010, Juniper Networks, Inc.
When configuring or managing tunnel-server ports, you must know the numbering scheme
for identifying the physical location of the port in the E Series router. 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 dedicated and shared tunnel-server ports.
slot—Number of the slot in which the tunnel-server 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 tunnel-server module
For more information about identifying the port number on a tunnel-server port, see
"Configuring Tunnel-Server Ports and Tunnel-Service Interfaces" on page 217 .
For information about installing tunnel-server modules in ERX routers, see ERX Hardware
Guide, Chapter 4, Installing Modules.
E120 and E320 Routers
Use the slot/adapter/port format to identify dedicated and shared tunnel-server ports.
slot—Number of the slot in which the line module resides in the chassis
In the E120 router, line module slots are numbered 0–5. In the E320 router, line module
slots are numbered 0–5 and 11–16. For both routers, slots 6 and 7 are reserved for SRP
modules; slots 8–10 are reserved for switch fabric modules (SFMs).
adapter—Number of the bay in which the I/O adapter (IOA) resides
This identifier applies to the E120 and E320 routers only. Dedicated tunnel-server ports
are supported on the ES2-S1 Service IOA, which is a full-height IOA and is identified in
the software as adapter 0. Shared tunnel-server ports reside on a virtual adapter that
is identified in the software as adapter 2.
port—Number of the port on the IOA
For more information about identifying the port number on a tunnel-server port, see
"Configuring Tunnel-Server Ports and Tunnel-Service Interfaces" on page 217.
For information about installing tunnel-server modules in the E120 and E320 routers, see
E120 and E320 Hardware Guide, Chapter 4, Installing Modules.
The configuration task examples in this chapter use the format for ERX7xx models,
ERX14xx models, and the ERX310 router to specify a tunnel-server port. (The format is
described in "Numbering Scheme" on page 211.)
Chapter 6: Managing Tunnel-Service and
IPSec-Service Interfaces
211
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