Ethernet

We have an internet connection from 2 different ISP, I want to use the same PIX 525 firewall 7.0(6)

We have an internet connection from 2 different ISP, I want to use the same PIX 525 firewall 7.0(6) . My firewall has 2 Ethernet interface & 2 Giga Ethernet interfaces. I am using ethernet 0 for outside connection with ISP A ethernet 1 for outside2 connection with ISP B Giga Ethernet 0 for DMZ...

After clean OS install, ethernet drivers don't work?

I have a custom-built PC with a Fatal1ty AN9-32X motherboard (built in nVidia gigabit ethernet controller) Once I performed a clean install of an upgraded operating system (went from XP to Vista) .. I needed to reinstall my drivers. Everything has gone great, except when I installed the driver for...

Messages transmitted in 10BASE-T standard Ethernet network

What is the length of the messages being transmitted in a 10BASE-T standard Ethernet network? Can this message be displayed on a LCD display?

Follow Up to How Much Bandwidth

We are a small organization (15+/- full time employees). We currently have a T-1 line, no VPN. Last week, we experienced 100% usage of our T-1 line - first time ever. I've explored every alternative including bonded T-1, ADSL, SDSL, Ethernet (10 Mbps up and down). The Ethernet solution would be...

UTILIZE 4 PAIRS CAT 5 CABLE FOR 2 100TX DROPS

I am trying to figure out if that I can legally run a CAT 5 cable and use all four pairs to utilize 2 ethernet 100tx drops. If so is does that deviate from the IEEE 802 standard. If this is possible do both drops still have good quality 10/100 tx network drops.

Direcway node will be replaced by with an Adtran 3200 router hooked to a T1. Do I simply treat the Adtran 3200 as another node?

I work for a company that has an Ethernet peer to peer lan. All nodes are MS XP Pro PC's. They presently have a Direcway node that supplies Internet access. The Direcway node will be replaced by with an Adtran 3200 router hooked to a T1. Do I simply treat the Adtran 3200 as another node? Does it...

Half-duplex and full duplex operation issues?

Although I have studied some information on half-duplex and full-duplex operation I am not entirely sure how the following figures work out, any help would be appreciated. For this scenario lets assume UTP cable is being used: So far in my studies, the information provided to me states that the...

program to simulate the behaviour of CSMA/CD Protocol over Ethernet

Can anybody give me a program that simulate the behaviour of CSMA/CD protocol over Ethernet. Its very urgent please help me.

what is a program code to simulate the behaviour of CSMA/CD protocol over Ethernet?

what is a program code to simulate the behaviour of CSMA/CD protocol over Ethernet?

Collisions in network cable

I still get collisions on one of my network cables even when I have a switch. Is this to do with the cable I'm using? What can I do?

How should I upgrade my network infrastructure?

I am now upgrading the network infrastructure of my office and I have 10-15 computers. Now what I want to do is to connect to the Internet with a wireless or wired Ethernet connection and connect the Microsoft workgroup sharing with another wired Ethernet. Is it possible to connect a LAN connection...

How do I see one HBA ww port name ?

I want to know what is the command or set of step to get to the ww port name of a Fiber Channel card. I thought it was on the strsst menu, But I can´t find it

30% throughput on ethernet uk-ireland, 3 carriers

i have recently supplied a 100mb/s ethernet to my customer, between dulin - london. 3 telcos form this circuit end to end. i.e. 3 segements to the circuit. when telcos run ethernet tests the throughput is ok. however on live data ftp tests, the circuit consistently shows througput of c.25%. I have...

LAN connection problem

I have a Dell Latitude C610 (OK stop laughing), running XP Pro. I am VERY novice. My company gave me a Sprint USB wireless modem, I installed and it works well. Since installing it, I cannot get the laptop to use the onboard LAN port when I need it. I boot without the wireless, and plug my Ethernet...

Ethernet and Patch Cables

What's the difference between Ethernet cable and Patch cable? And what does "straight-through" mean? Thanks

ethernet bandwidth

How does ethernet deliver different bandwidths?

TCP Retransmissions b/c of Checksum Incorrect

We have a problem where some users will complain of slow application response time (on the LAN) from our ERP server, but others will be fine. After many hours of troublshooting I've discovered the following: - Packet Sniff's of affected users shows TCP Retransmissions because the Checksum is...

Dell Optiplex GX520 hibernation/sleep mode issues

Hello, We have several Dell Optiplex GX520's on the network running Windows XP pro. They randomly fall into sleep mode. Moving the mouse will not wake them - you have to push the power button to get them out of sleep mode. Also we are not able to remotely wake them to do patch updates or remotely...

Looking for clarification on new IP layout

I currently have a 192.168.1.0/24 network. I have one cisco router with many cisco switches that allow everyone to have a DHCP ip of 192.168.1.X. I will soon have more people then the /24 will handle, so I would like to switch to: 172.16.30.0 subnet 255.255.254.0 mask 172.16.31.255 broadcast ...

Default gateway VS ip default route

I manage a rather complex network. At one of my sites, I have a Cisco 3750 switch as the main switch. I have all LAN devices set to point to this switch as their default gateway. I have the switch default gateway set to point to the firewall. However, no traffic will go past the switch to the...