Learning Networking

 WHAT IS INTER-VLAN ROUTING INTER-VLAN ROUTING IS THE ABILITY TO ROUTE, OR SEND, TRAFFIC BETWEEN VLANS THAT ARE NORMALLY BLOCKED BY DEFAULT. ROUTER ON A STICK (ROAS) IS A TECHNIQUE USED IN NETWORKING TO CONNECT MULTIPLE VLANS TO A SINGLE PHYSICAL INTERFACE ON A ROUTER. THIS IS ACHIEVED BY CREATING SUB-INTERFACES ON THE PHYSICAL INTERFACE, WITH EACH SUB-INTERFACE REPRESENTING A DIFFERENT VLAN.  EACH SUB-INTERFACE IS THEN ASSIGNED AN IP ADDRESS FROM THE CORRESPONDING VLAN SUBNET. SWITCHES AND VLANS WORK AT THE MAC ADDRESS LAYER (LAYER 2).  TRAFFIC CAN'T BE ROUTED BETWEEN VLANS AT LAYER 2 BASED ON MAC ADDRESSES. IN A LAN ENVIRONMENT, VLANS DIVIDE BROADCAST DOMAINS. WHEN A HOST IN ONE VLAN MUST COMMUNICATE WITH A HOST IN ANOTHER VLAN, THE TRAFFIC MUST BE ROUTED BETWEEN THEM.  THIS TYPE OF ROUTING IS CALLED INTER-VLAN ROUTING. INTERVLAN IS A MECHANISM IN WHICH DIFFERENT VLANS CAN COMMUNICATE TO EACH OTHER. ______________________ CONFIGURATION STEP 1  CONFIGURES VLAN ON SWITCH.  ASSIGN P

 WHAT IS SSH SSH OR SECURE SHELL IS  A NETWORK COMMUNICATION PROTOCOL THAT ENABLES TWO COMPUTERS TO COMMUNICATE   (C.F HTTP OR HYPERTEXT TRANSFER PROTOCOL. WHICH IS THE PROTOCOL USED TO TRANSFER HYPERTEXT SUCH AS WEB PAGES) AND SHARE DATA. SSH IS A A PROTOCOL SIMILAR TO THAT OF TALENT. IT'S ALSO USED TO REMOTELY ACCESS THE NETWORK DEVICES. BUT IT IS MORE SECURE IN COMPARISON  TELNET AND PROVIDES A CRYPTOGRAPHIC CONCEPT. WHAT IS CRYPTOGRAPHY CRYPTOGRAPHY IS A METHOD OF PROTECTING INFORMATION AND COMMUNICATIONS THROUGH THE USE OF CODES. SO THAT ONLY THOSE FOR WHOM THE INFORMATION IS INTENDED CAN READ AND PROCESS IT. _________________________ REQUIRMENT 1. WHICHEVER DEVICE YOU WANT TO CONFIGURE SSH ON THIS DEVICE. MUST HAVE AN IP ADDRESS BECAUSE WHEN WE ACCESS THE DEVICE REMOTELY ACCESS THEY WILL DO IT BASED ON THE IP ADDRESS. 2.  SSH IS CONFIGURE ON EVERY MODEL OF ROUTER AND SWITCH. _____________________ CONFIGURATION FIRST STEP 1. IP ADDRESS CONFIGURE  ON  A ROUTER. 2. SSH CONFIGU

WHAT IS  ETHER-CHANNEL COMBINE THE MULTYPAL PHYSICAL LINKN INTO ONE LOGICALL LINK IS CALLED ETHER CHANNEL.  COMMONLY USE THIS TO INCREASE THE BANDWIDTH OF LAYER 2 TECHNOLOGIES, MEANING ALL TRAFFIC WITHIN YOUR LAN CAN BE INCREASED. ETHERCHANNEL IS A TECHNOLOGY WHEREIN WE BUNDLE PHYSICAL INTERFACES TOGETHER TO CREATE A SINGLE LOGICAL LINK.  IT IS ALSO KNOWN AS LINK AGGREGATION.  IT PROVIDES FAULT-TOLERANT AND HIGH-SPEED LINKS BETWEEN CISCO SWITCHES AND ROUTERS AND IS OFTEN SEEN IN THE BACKBONE NETWORK. _________________________ TYPES OF ETHER-CHANNEL 1. STATIC ETHER-CHANNEL 2. DYNAMIC ETHER-CHANNEL STATIC ETHER-CHANNEL STATIC LINK AGGREGATION IS A METHOD OF COMBINE OR BINDING OF  MULTIPLE SWITCH PORTS  OR NICS TO FORM A SINGLE ETHERCHANNEL.  A STATIC LINK AGGREGATION  MEANS  THAT YOU MANUALLY CONFIGURE THE LINKYOU WISH TO USE AS   PART OF YOUR ETHERCHANNEL. DYNAMIC ETHER-CHANNEL THERE IS A WAY OF ACQUIRING HIGHER BUNDING BY BANDWITH PORTS TOGETHER. A BETTER WAY TO DEFINE IT WOULD BE TO S

WHAT IS  VTP  VTP HELPS YOU SIMPLIFI MANAGMENT OF THE VLAN DATA BASE ACROSS MULTIPAL SWITCHS. MANAGES THE ADDITION,DELETION,AND REMAINING OF VLAN'S ON THE NETWORK-WIDE-BASIS WHEN YOU CONFIGURE A NEW VLAN ON A VTP SWITCH (SETVER) , THE VLAN IS DISTRIBUTED THROUGH ALL SWITCHES IN THE DOMAIN. REDUCE THE NEED TO CONFIGURE THE  SAME VLAN EVERWHERE. TYPES OF VTP 1. SERVER MODE 2. CLIENT MODE 3. TRANSPARENT MODE SERVER MODE IN THIS MODE YOU CAN DELETE,MODIFY,CREAT,RENAME THE VLAN'S. BY DEFAULT EVERY SWITCHE ENABLE THE SRVER MODE SEND THE VLAN'S INFORMATION TO CLIENT SWITCH. . CLIENT MODE IN THIS MODE YOU CANNOT CREAT,DELET,MODIFY,RENAME THE VLAN'S. ENABLE THE CLIEND MODE IN SWITCH.  RECIEVE THE VLAN'S DATABASE AND FORWARDS THE OTHER SWITCHES. TRANSPARENT MODE HIS SUPPORTED SERVER MODE AND CLIENT MODE. REQUIREMENT TO CONFIGURE VTP 1. DOMAIN NAME SAME ALL THE CLIENT  SWITCHES TO SERVER SWITCH. 2. IF YOU SERVER SWITCH ATTACHED THE PORT AND HIS PORT ASSIGN THE VLAN SAME PORT A

   CISCO SWITCHECLI INTERFACE HIS 3 MODE 1.USER MODE                             switch> 2. ENABLE MODE                                     switch# 3. CONFIGURATION TERMINAL MODE                                                                            switch(config)# _________________________ WHEN FIRST TIME ROUTER HIS OPEN THE FIST MODE HIS APPEARS    switch>   AND WHEN TO ENABLE MODE TO ENTER    switch> enable SEE  TO ENABLE MODE    switch# AND WHEN TO CONFIGURATION MODE TO ENTER  switch# config t AND SEE THE CONFIGURATION MDE  switch(config)# _______________________ THE PURPOSE OF  ENABLE MODE  IS ALL THE CONFIGURATION YOU PERFORMS A SWITCH TO SEE IT AND ANY IP PING IN ENABLE MODE AND CHECK COMMUNICATION. THE PURPOSE OF  CONFIGURATION TERMINAL  MODE ALL THE PROTOCOLS AND CONFIGURATION POERFORMED HIS MODE. _________________________   WHAT IS VLAN  DEVIDED SINGLE BROADCAST DOMAIN INTO LOGICALLY  MULTYPAL BROADCAST DOMAINS IS CALLED VLAN. THE VIRTUAL LOCAL AREA NATWORK IS LA

 CISCO ROUTER CLI INTERFACE HIS 3 MODE 1.USER MODE                             Router> 2. ENABLE MODE                                     Router# 3. CONFIGURATION TERMINAL MODE                                                                            Router(config)# _________________________ WHEN FIRST TIME ROUTER HIS OPEN THE FIST MODE HIS APPEARS    Router>   AND WHEN TO ENABLE MODE TO ENTER    Router> enable SEE  TO ENABLE MODE    Router# AND WHEN TO CONFIGURATION MODE TO ENTER  router# config t AND SEE THE CONFIGURATION MDE  router(config)# _______________________ THE PURPOSE OF ENABLE MODE IS ALL THE CONFIGURATION YOU PERFORMS A ROUTER TO SEE IT AND ANY IP PING IN ENABLE MODE AND CHECK COMMUNICATION. THE PURPOSE OF CONFIGURATION TERMINAL MODE ALL THE PROTOCOLS AND CONFIGURATION POERFORMED HIS MODE. 1. DHCP CONFIGURATION DYNAMIC HOST CONFIGURATION PROTOCOL (DHCP) IS A CLIENT/SERVER PROTOCOL THAT AUTOMATICALLY PROVIDES AN INTERNET PROTOCOL (IP) HOST WITH ITS IP ADDRESS.

HELLO FRIENDS, I HOPE YOU ALL ARE DOING WELL. I AM MAKING THIS BLOG FOR THE INFORMATION OF NETWORKING ABOUT. IN THIS BLOG WE WILL READ CCNA (200-301) AND ITS RELATED AND NETWORK RELATED INFORMATION. MY NAME IS ABDUL MANAN JAVED MANJ MY AGE IS 21 YEAR    I AM STUDED ABOUT NETWORK  TECHNOLOGY EMAIL ID : mananrajpoot449@gmail.com CONTACT NO : +923486777628 ADDRESS : ISLAMABAD,G7,KHADA MARKET My Website   My Facebook Account My Facebook Page My Linkedin Profile _____________________________ CONTENT ABOUT  HIS BLOGG 1.  Computer Network 2.   What Is Internet 3.   Network Architecture 4.  Osi Refrence Model 5.  Operating System 6.  Internet Protocol (Ip) 7.  Internet Protocol Types 8.   Port Number 9.  Mac-Address 10.    WHAT IS HUB 11.   WHAT IS SWITCH 12.   WHAT IS ROUTER 13.   WHAT IS NETWORK 14.   NETWORK CABLES 15.   ROUTING 16.  Data Transmission 17.  Transmission Mode 18.    DHCP CONFIGURATION 19.    VLAN CONFIGURATION 20.   VTP CONFIGURATION 21.    SSH CONFIGURATION 22.    Rapid-Span