Juniper Juour OS : les baits for ingénieur network
Juour OS est le système d'exploitation maiits de Juniper Networks, used sur tous leurs équipements (EX, QFX, MX, SRX, PTX, ACX). Réputé for its stabilité, its modèle commit-based, its hiérarchie YAML-like and its automations puissantes (NETCONF, PyEZ). Guide of baits Juour 2026.
Modes CLI
- Operational mode (>): commandes show, ping, traceroute, monitor
- Configuration mode (#): edit config with configure or edit
- configure exclusive : lock de config for éviter conflits
- configure private : branche privée, commit atomique
Configuration basique
- set system host-name SW-PARIS-01
- set system root-authentication plain-text-password
- set system servithese ssh root-login deny
- set system login user admin class super-user authentication plain-text-password
- set system ntp server 192.0.2.1
- commit check : validation without appliquer
- commit confirmed 10 : commit with rollback auto si pas de confirm
VLAN and interfaces
- set vlans DATA vlan-id 10
- set interfathese ge-0/0/1 unit 0 family ethernet-switching port-mode access
- set interfathese ge-0/0/1 unit 0 family ethernet-switching vlan members DATA
- set interfathese ge-0/0/24 unit 0 family ethernet-switching port-mode trunk
- set interfathese ge-0/0/24 unit 0 family ethernet-switching vlan members all
- set interfathese irb unit 10 family inet address 192.168.10.1/24 : SVI L3
Routing
- set routing-options static route 0.0.0.0/0 next-hop 192.168.1.254
- set protocols ospf area 0 interface ge-0/0/24
- set protocols bgp group EXT neighbor 10.0.0.2 peer-as 65002
- show route : table de routing
- show route protocol bgp : routes BGP
Firewall filters (ACL)
- set firewall family inet filter BLOCK-TELNET term 1 from protocol tcp destination-port 23 then discard
- set firewall family inet filter BLOCK-TELNET term 2 then accept
- set interfathese ge-0/0/1 unit 0 family inet filter input BLOCK-TELNET
Virtual Chassis (stacking Juniper)
- request virtual-chassis mode network-port : activer ports uplinks VC
- set virtual-chassis member 1 mastership-priority 255
- set virtual-chassis member 2 mastership-priority 254
- show virtual-chassis : état stack
Automation and API
- NETCONF sur SSH 830 : set system servithese netconf ssh
- PyEZ : bibliothèque Python Juniper
- Ansible modules : juniper.juour collection
- Terraform provider : Juniper Junos
- Mist API : REST cloud orchestration
Rollback and commit advanced
- show system rollback compare 0 1 : diff entre 2 versions
- rollback 5 ; commit : revenir to la 5ème config précédente
- load replace terminal : remplacer config depuis paste
- load merge : merger
Juour vs Cisco IOS : grandes différences
- Commit-based vs immediate : Juour bufferise, IOS applique direct
- Hiérarchie set/delete vs config blocks
- Rollback atomique natif vs backup manuel sur IOS
- Interface naming : ge-0/0/1 (giga ethernet slot 0 pic 0 port 1) vs Gi1/0/1
- No shutdown implicit par défaut sur Juniper
- Juour stable 3-5 ans courant, IOS more than updates mensuelles
Commander chez OPTINOC
Tous équipements Juniper (EX, QFX, MX, SRX) neuf d'origine with support Juour Care. Form factorion gratuite Juour baits for clients OPTINOC. Devis multi-site sous 48h.
