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Show Uncommitted Configuration Changes

Juniper EX2200, EX4200, EX4300, EX4550

List uncommitted configuration changes show | compare rollback 0 eg: root@router# show | compare...

Updated 10 months ago by david

vlan-id(32768) to bd-id mapping doesn't exist in itable

Juniper EX2200, EX4200, EX4300, EX4550

(2021-10-27) Problem Syslog noise: vlan-id(32768) to bd-id mapping doesn't exist in itable Solut...

Updated 10 months ago by david

Virtual Chassis FPC Replacement

Juniper EX2200, EX4200, EX4300, EX4550

(2015-04-16) Problem One of my FPC units in my virtual chassis is dead and I need to insert a rep...

Updated 10 months ago by david

Upgrade bank is empty or corrupted for FPC 0, please do standard upgrade sequence

Juniper EX2200, EX4200, EX4300, EX4550

(31 December 2012) Problem After a JunOS upgrade (in our case from 10.5R5.5 to 11.4R6.5), the swi...

Updated 10 months ago by david

This device has booted from the backup JunOS Image

Juniper EX2200, EX4200, EX4300, EX4550

(2017-01-25) Problem WARNING: THIS DEVICE HAS BOOTED FROM THE BACKUP JUNOS IMAGE It is possible t...

Updated 10 months ago by david

Storm Control

Juniper EX2200, EX4200, EX4300, EX4550

(7 June 2012) Problem: Jun 7 12:16:55 sa2-40.gridwayit.local eswd[940]: ESWD_ST_CTL_ERROR_IN_EFF...

Updated 10 months ago by david

SSH PubKey Login

Juniper EX2200, EX4200, EX4300, EX4550

(2018-12-19) Problem Want SSH Pubkey authentication for my AD-backed administrative user. Specifi...

Updated 10 months ago by david

Rescue Configuration

Juniper EX2200, EX4200, EX4300, EX4550

(25 June 2012) Problem I have an amber Alarm LED but both the web interface and the CLI alarm com...

Updated 10 months ago by david

Remote Admin Authentication Via Radius

Juniper EX2200, EX4200, EX4300, EX4550

(2013-04-05) On The Switch This grants all members of an appropriate group super-user level acces...

Updated 10 months ago by david

QOS

Juniper EX2200, EX4200, EX4300, EX4550

(2016-03-07) Quick QOS Setup for Voice This is valid for JunOS 12.3R3.4 set class-of-service clas...

Updated 10 months ago by david

Port VLAN Gotcha

Juniper EX2200, EX4200, EX4300, EX4550

(2013-11-15) Problem I have a VLAN with ports defined as so: set vlans MyLAN interface ge-0/0/16....

Updated 10 months ago by david

OS Shell

Juniper EX2200, EX4200, EX4300, EX4550

(2021-10-27) Problem I want shell on the switch. Solution > start shell sh

Updated 10 months ago by david

Maximum Spanning Tree Diameter

Juniper EX2200, EX4200, EX4300, EX4550

(2019-07-11) What is the maximum diameter of a spanning tree? By default, the maximum number of l...

Updated 10 months ago by david

VLAN IP Interface

Juniper EX2200, EX4200, EX4300, EX4550

(2023-01-19) IP address on a VLAN # show | display set | match Test set vlans Test-2500 descripti...

Updated 10 months ago by david

Useful Commands

Juniper EX2200, EX4200, EX4300, EX4550

Notes for Juniper EX4200 JunOS 10.1 Showing the config in "set" commands rather than brace-format...

Updated 10 months ago by david

Switch Forwarding Table

Juniper EX2200, EX4200, EX4300, EX4550

Switching Table Look at the current forwarding table: root@sa4-39> show ethernet-switching table ...

Updated 10 months ago by david

Reverting Configurations

Juniper EX2200, EX4200, EX4300, EX4550

Rolling Back Commits Every time you make a change through the web UI it counts as a "commit". Som...

Updated 10 months ago by david

Virtual Chassis Setup

Juniper EX2200, EX4200, EX4300, EX4550

(2014-08-13) These notes are for JunOS 12.3R3.4. You do not need an enhanced license to use Virtu...

Updated 10 months ago by david

Snmp query: Requested table is empty or does not exist

Juniper EX2200, EX4200, EX4300, EX4550

(7 September 2012) Problem When you run switchwalk, it complains that a table is empty or missing...

Updated 10 months ago by david

Sample First-Boot Config

Juniper EX2200, EX4200, EX4300, EX4550

(2013-07-19) This is how I configure my EX2200 when I first get them. New EX2200 Initial Setup We...

Updated 10 months ago by david