CCNP TSHOOT – LAGONET KB

Check jitter bằng mtr, làm sao sử dụng?

thangdv / November 11, 2024

Để kiểm tra jitter (độ biến động của độ trễ) bằng công cụ MTR (My Traceroute), bạn có thể làm […]

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

CCNP TSHOOT, CISCO, COURSES, ISSUES, NETWORKING

Cisco: Trace MAC or IP addresses to switch ports

thangdv / August 14, 2018

Cisco: Trace MAC or IP addresses to switch ports Sometimes, people ask me to locate switch ports where their machines/servers

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