Skip to main content

Recently Updated Pages

Dave's Law Of Internet Measurement

War Stories

Law Anything which can be measured, will be measured on the Internet. 1st Corollary Anything meas...

Updated 1 year ago by david

Dave's Law Of System Administration

War Stories

Law There's always an easier way. Corollary Things frequently get done sooner if you just do them...

Updated 1 year ago by david

Dependency Hell

War Stories

(7 September 2012) Poul-Henning Kamp writes about A Generation Lost In The Bazaar: Here is one e...

Updated 1 year ago by david

Buying Monkeys

War Stories

Once upon a time in a village, a man appeared and announced to the villagers that he would buy mo...

Updated 1 year ago by david

Interface-based VPNs

War Stories

(2015-03-10) Something which I realized a few years back and have not read anywhere before or sin...

Updated 1 year ago by david

DNSBL running wild

War Stories

(24 January 2012) So years ago we get called into this small company working out of I don't remem...

Updated 1 year ago by david

Ping WAN from LAN

Palo Alto Random

(2024-10-10) Problem: Ping WAN interface IP from LAN Solution: Pinging from an internal host to a...

Updated 1 year ago by david

Ping things from Palo Alto

Palo Alto Random

(2024-10-10) Problem: I want to ping something. Solution: ping host 1.1.1.1

Updated 1 year ago by david

Hi-Availability - Out of Sync Peers

Palo Alto Random

(2024-09-09) Problem: WARNING: The running configuration is not currently synchronized to the HA ...

Updated 1 year ago by david

Display configuration in set statements

Palo Alto Random

2024-09-09 Problem xml is hard to read Solution set cli config-output-format set Now when in con...

Updated 1 year ago by david

Show Logs From Console

Cisco Switch

(2024-09-18) SW# show logging

Updated 1 year ago by david

JUNOS versions running on dual partitions are not same

Juniper EX2200, EX4200, EX4300, EX4550

(2016-05-25) Problem Boot media /dev/da0 has dual root support WARNING: JUNOS versions running on...

Updated 1 year ago by david

Non-Stop Software Upgrade (NSSU) Is Dicey

Juniper EX2200, EX4200, EX4300, EX4550

(2019-01-02) Non-Stop Software Upgrade Is Dicey We have attempted to upgrade a EX4300 virtual cha...

Updated 1 year ago by david

Port Vlan Mirror Analyzer

Juniper EX2200, EX4200, EX4300, EX4550

(2022-05-26) Port or VLAN Source Mirror Port examples: show | display set | match forwarding-op s...

Updated 1 year ago by david

Port Vlan Mirror Analyzer

Juniper EX2200, EX4200, EX4300, EX4550

(2022-05-26) Port or VLAN Source Mirror Port examples: show | display set | match forwarding-op s...

Updated 1 year ago by david

SNMP port-to-interface

Juniper EX2200, EX4200, EX4300, EX4550

(Note to Googlers: I'm more than a little surprised to get so many hits on this page so soon. To ...

Updated 1 year ago by david

Show Uncommitted Configuration Changes

Juniper EX2200, EX4200, EX4300, EX4550

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

Updated 1 year 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 1 year 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 1 year 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 1 year ago by david