Juniper ACX1000 Configuration Manual page 4

ACX Series Universal Access Router Configuration Guide
Part 2
Chapter 2
Chapter 3
iv
ACX5000 Routers Hardware and CLI Terminology Mapping . . . . . . . . . . . . . . . . . 39
ACX5048 Router Hardware and CLI Terminology Mapping . . . . . . . . . . . . . . 39
ACX5096 Router Hardware and CLI Terminology Mapping . . . . . . . . . . . . . . 40
Installing and Upgrading ACX Series Routers
Installing and Upgrading Junos OS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Routing Engines and Storage Media Names (ACX Series, M Series, MX Series,
PTX Series, T Series, TX Matrix, TX Matrix Plus, and JCS 1200 Routers) . . . . 45
Boot Sequence on ACX Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Dual-Root Partitioning ACX Series Routers Overview . . . . . . . . . . . . . . . . . . . . . . 48
Boot Media and Boot Partition on the ACX Series Routers . . . . . . . . . . . . . . . 48
Important Features of the Dual-Root Partitioning Scheme . . . . . . . . . . . . . . 49
Understanding How the Primary Junos OS Image with Dual-Root Partitioning
Recovers on the ACX Series Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Junos OS Release 12.2 or Later Upgrades with Dual-Root Partitioning on ACX
Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Installing Junos OS Using a USB Storage Device on ACX Series Routers . . . . . . . 52
Installing Junos OS Upgrades from a Remote Server on ACX Series Routers . . . . 52
Example: Installing Junos OS and Configuring a Dual-Root Partition on ACX
Series Routers Using the CLI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Upgrading Software Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Loading and Committing the Configuration File . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Checking the Current Configuration and Candidate Software Compatibility . . . . 61
Unattended Boot Mode in ACX Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Understanding System Snapshot on an ACX Series Router . . . . . . . . . . . . . . . . . 64
Example: Taking a Snapshot of the Software and Configuration . . . . . . . . . . . . . 65
Understanding In-Service Software Upgrade (ISSU) in ACX5000 Series
Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
In-Service Software Upgrade Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Performing an In-Service Software Upgrade (ISSU) in ACX5000 Series
Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Preparing the Router for Software Installation . . . . . . . . . . . . . . . . . . . . . . . . 69
Upgrading the Software Using ISSU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Verifying a Unified ISSU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Configuring Autoinstallation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
ACX Series Autoinstallation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Supported Autoinstallation Interfaces and Protocols . . . . . . . . . . . . . . . . . . . 76
Typical Autoinstallation Process on a New Router . . . . . . . . . . . . . . . . . . . . . 76
Before You Begin Autoinstallation on an ACX Series Universal Access Router . . . 77
Autoinstallation Configuration of ACX Series Universal Access Routers . . . . . . . . 78
Verifying Autoinstallation on ACX Series Universal Access Routers . . . . . . . . . . . . 79
USB Autoinstallation on ACX Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Autoinstallation on ACX Series Routers in Hybrid Mode Overview . . . . . . . . . . . . . 81
Prerequisites for Autoinstallation on ACX Series Routers in Hybrid Mode . . . . . . . 83
Autoinstallation Process on a New ACX Series Router in Hybrid Mode . . . . . . . . . 84
Configuring Autoinstallation of ACX Series Routers in Hybrid Mode . . . . . . . . . . . 87
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