CCIE R&S – Page 2 – LAGONET KB

CCIE R&S, CCNA, CCNP ROUTE, CISCO, COURSES, ISSUES, NETWORKING

Show interface in depth

thangdv / September 6, 2018

In my opinion, a good network engineer must know the “show interface” in depth; indeed, this command is useful to obtain […]

CCIE R&S, CCNA, CCNP ROUTE, CCNP SWITCH, CCNP TSHOOT, CISCO, COURSES, NETWORKING

Understanding Cisco DMVPN

thangdv / September 6, 2018

In an old post, dated 2011, I explained various types of VPN technologies. In seven years several things have changed: SHA1

CCIE R&S, CCNA, CCNP ROUTE, CCNP SWITCH, CCNP TSHOOT, CISCO, COURSES, ISSUES, KIẾN THỨC, NETWORKING

How to use Time-Domain Reflectometer (TDR)

thangdv / August 22, 2018

I’m no electrical engineer, (the closest experience I have with electricity is the amount of electrocution I received when I

CCIE R&S, CCNA, CCNP ROUTE, CCNP SWITCH, CCNP TSHOOT, CISCO, COURSES, ISSUES, ISSUES, JNCIA, JNCIE, JNCIP, JUNIPER, NETWORKING, SYSTEM

Regular Expression Cheat Sheets

thangdv / August 16, 2018

PCRE Regex Cheatsheet Regular Expression Basics . Any character except newline a The character a ab The string ab a|b

CCIE R&S, CCNA, CCNP SWITCH, CISCO, COURSES, NETWORKING

Link Aggregation – LACP Protocol

thangdv / August 1, 2018

Link Aggregation – LACP Protocol Valter Popeskic Data link layer, Switching No Comments EtherChannel enables bundling multiple physical links connecting

CCIE R&S, CCNA, CCNP ROUTE, CCNP SWITCH, CCNP TSHOOT, CISCO, COURSES, ISSUES, NETWORKING

CÁCH UPGRADE / RECOVERY CISCO IOS TRÊN SWITCH CISCO CATALYST

thangdv / July 31, 2018

SW65-reserved#archive download-sw /overwrite tftp://10.0.32.201/c2960x-universalk9-tar.152-6.E.tar Loading c2960x-universalk9-tar.152-6.E.tar from 10.0.32.201 (via Vlan777): !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! [OK – 36003840 bytes] Loading c2960x-universalk9-tar.152-6.E.tar from 10.0.32.201 (via