CCNA Category

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Broadcast Domain

Wednesday, November 19, 2008, 11:33
CCNA
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Broadcast domain is very important topic of computer networks, most of the congestion in LAN environment occurs due to broadcast. If a frame with broadcast address is realize it can be hear by all the connect devices it can be switch, hub or another computer. Broadcast traffic can consume most of the bandwidth in network, sometimes broadcast may occur due to different protocols like ... Full article

Tags: broadcast, broadcast domain, broadcast frames, congestion, faulty NIC, loopback, replicate signal

Console Password

Wednesday, November 12, 2008, 13:56
CCNA
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Console Password To set the console password, use the line console 0 command. But look at what happened when I tried to type line console 0 ? from the aux line configuration—I received an error. You can still type line console 0 and it will accept it, but the help screens just don’t work from that prompt. Type exit to get back one level and you’ll ... Full article

Tags: aux line configuration, CCNA configuration excercise, cisco routers, conslole password tutorial, console password, line console 0, password adam, router configuration

Set Auxiliary Password

Wednesday, November 12, 2008, 13:54
CCNA
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Auxiliary Password To configure the auxiliary password, go into global configuration mode and type line aux ?. You can see that you only get a choice of 0–0 (that’s because there’s only one port): Router#config t Enter configuration commands, one per line. End with CNTL/Z. Router(config)#line aux ? Command-Line Interface 167 <0-0> First Line number Router(config)#line aux 0 Router(config-line)#login Router(config-line)#password adam It’s important to remember the login command, or the auxiliary port won’t prompt ... Full article

Tags: Auxiliary password, auxiliary password tutorial, Cisco router Aux password, config t, line aux

Router Interfaces

Wednesday, November 12, 2008, 13:50
CCNA
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Interfaces To make changes to an interface, you use the interface command from global configuration mode: Router(config)#interface ? Async Async interface BVI Bridge-Group Virtual Interface CTunnel CTunnel interface Dialer Dialer interface FastEthernet FastEthernet IEEE 802.3 Group-Async Async Group interface Lex Lex interface Loopback Loopback interface MFR Multilink Frame Relay bundle interface 158 Multilink Null Serial Tunnel Vif Virtual-Template Virtual-TokenRing range Multilink-group interface Null interface Serial Tunnel interface PGM Multicast Host interface Virtual Template interface Virtual TokenRing interface range command Router(config)#interface fastethernet 0/0 Router(config-if)# Did you ... Full article

Tags: BRI, Ctunnel, fast ehternet, idaler, Lex, line commands, loopback, MFR, multilink, Router interfacesmasync, subinterfaces, tunnel interface, vty

Dynamic Host Configuration Protocol (DHCP)/BootP (Bootstrap Protocol)

Wednesday, November 12, 2008, 12:28
CCNA
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Dynamic Host Configuration Protocol (DHCP)/BootP (Bootstrap Protocol) Dynamic Host Configuration Protocol (DHCP) gives IP addresses to hosts. It allows easier administration and works well in small-to-even-very-large network environments. All types of hardware can be used as a DHCP server, including a Cisco router. DHCP differs from BootP in that BootP gives an IP address to a host, but the host’s hardware address must be entered manually in ... Full article

Tags: bootstrap, Bootstrap protocol, CCNA tutorials, Cisco router, default gateway, DHCP, DHCP server, DNS, domain name, Dynamic host configuration protocol, dynamic IP, Protocols directory, WINS information

Simple Network Management Protocol (SNMP)

Wednesday, November 12, 2008, 12:27
CCNA
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Simple Network Management Protocol (SNMP) Simple Network Management Protocol (SNMP) collects and manipulates this valuable network information. It gathers data by polling the devices on the network from a management station at fixed or random intervals, requiring them to disclose certain information. When all is well, SNMP receives something called a baseline—a report delimiting the operational traits of a healthy network. This protocol can also stand ... Full article

Tags: agents, baseline, management station, simple network management protocol, SNMP, trap, watchgod

Simple Mail Transfer Protocol (SMTP)

Wednesday, November 12, 2008, 12:26
CCNA
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Simple Mail Transfer Protocol (SMTP) Simple Mail Transfer Protocol (SMTP), answering our ubiquitous call to e-mail, uses a spooled, or queued, method of mail delivery. Once a message has been sent to a destination, the message is spooled to a device—usually a disk. The server software at the destination posts a vigil, regularly checking this queue for messages. When it detects them, it proceeds to deliver ... Full article

Tags: CCNA tutorials, e-mail, method of mail delivery, POP3, protocol Directory, receive mail, simple mail transfer protocol, SMTP, spooled

Network File System (NFS)

Wednesday, November 12, 2008, 12:26
CCNA
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Network File System (NFS) Network File System (NFS) is a jewel of a protocol specializing in file sharing. It allows two different types of file systems to interoperate. It works like this: Suppose the NFS server software is running on an NT server, and the NFS client software is running on a Unix host. NFS allows for a portion of the RAM on the NT server ... Full article

Tags: CCNA training, CCNA tutorial, file sharing protocol, Network File system, NFS, NFS client software, NFS protocol, NT users, unix host

Trivial File Transfer Protocol (TFTP)

Wednesday, November 12, 2008, 12:25
CCNA
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Trivial File Transfer Protocol (TFTP) Trivial File Transfer Protocol (TFTP) is the stripped-down, stock version of FTP, but it’s the protocol of choice if you know exactly what you want and where to find it, plus it’s so easy to use and it’s fast too! It doesn’t give you the abundance of functions that FTP does, though. TFTP has no directory-browsing abilities; it can do nothing ... Full article

Tags: FTP, new version of FTP, TFTP, TFTP tutorial

File Transfer Protocol (FTP)

Wednesday, November 12, 2008, 12:25
CCNA
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File Transfer Protocol (FTP) File Transfer Protocol (FTP) is the protocol that actually lets us transfer files, and it can accom¬plish this between any two machines using it. But FTP isn’t just a protocol; it’s also a program. Operating as a protocol, FTP is used by applications. As a program, it’s employed by users to perform file tasks by hand. FTP also allows for access to ... Full article

Tags: ccna exam, file transfer, File transfer protocol, FTP, web server