Recently Updated Pages
Useful Commands
Notes for Juniper EX4200 JunOS 10.1 Showing the config in "set" commands rather than brace-format...
VLAN IP Interface
(2023-01-19) IP address on a VLAN # show | display set | match Test set vlans Test-2500 descripti...
Maximum Spanning Tree Diameter
(2019-07-11) What is the maximum diameter of a spanning tree? By default, the maximum number of l...
OS Shell
(2021-10-27) Problem I want shell on the switch. Solution > start shell sh
Port VLAN Gotcha
(2013-11-15) Problem I have a VLAN with ports defined as so: set vlans MyLAN interface ge-0/0/16....
QOS
(2016-03-07) Quick QOS Setup for Voice This is valid for JunOS 12.3R3.4 set class-of-service clas...
Remote Admin Authentication Via Radius
(2013-04-05) On The Switch This grants all members of an appropriate group super-user level acces...
Rescue Configuration
(25 June 2012) Problem I have an amber Alarm LED but both the web interface and the CLI alarm com...
SSH PubKey Login
(2018-12-19) Problem Want SSH Pubkey authentication for my AD-backed administrative user. Specifi...
Storm Control
(7 June 2012) Problem: Jun 7 12:16:55 sa2-40.gridwayit.local eswd[940]: ESWD_ST_CTL_ERROR_IN_EFF...
This device has booted from the backup JunOS Image
(2017-01-25) Problem WARNING: THIS DEVICE HAS BOOTED FROM THE BACKUP JUNOS IMAGE It is possible t...
Upgrade bank is empty or corrupted for FPC 0, please do standard upgrade sequence
(31 December 2012) Problem After a JunOS upgrade (in our case from 10.5R5.5 to 11.4R6.5), the swi...
Virtual Chassis FPC Replacement
(2015-04-16) Problem One of my FPC units in my virtual chassis is dead and I need to insert a rep...
vlan-id(32768) to bd-id mapping doesn't exist in itable
(2021-10-27) Problem Syslog noise: vlan-id(32768) to bd-id mapping doesn't exist in itable Solut...
Show Uncommitted Configuration Changes
List uncommitted configuration changes show | compare rollback 0 eg: root@router# show | compare...
SNMP port-to-interface
(Note to Googlers: I'm more than a little surprised to get so many hits on this page so soon. To ...
Port Vlan Mirror Analyzer
(2022-05-26) Port or VLAN Source Mirror Port examples: show | display set | match forwarding-op s...
Port Vlan Mirror Analyzer
(2022-05-26) Port or VLAN Source Mirror Port examples: show | display set | match forwarding-op s...
Non-Stop Software Upgrade (NSSU) Is Dicey
(2019-01-02) Non-Stop Software Upgrade Is Dicey We have attempted to upgrade a EX4300 virtual cha...
JUNOS versions running on dual partitions are not same
(2016-05-25) Problem Boot media /dev/da0 has dual root support WARNING: JUNOS versions running on...