Re: [expert] Ethernet binding?
On Sun, 23 Jun 2002, Bill wrote: That makes sense. Thanks for the education. Now I know somethin new. One question though. If you have a 100mb nic and run it in full duplex mode isnt that like running at 200mb? Bill, You are correct in the sense that your available bandwidth will be effectively doubled. It will be able to both transfer and receive data simultaneously at 100Mbps (theoretical bandwidth). Whereas, if you were running a half duplex Ethernet network, the 10Mbit of bandwidth is only ever used in one direction at a time. Ashley -- Ashley Reynolds [EMAIL PROTECTED] Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
Re: [expert] Ethernet binding?
You cant do that it would be like having two nics on a network with the same ip's but you can use two nic's and assign seperate ip's to each one. eth0 and eth0:0 If its mor throughput you want try checking to see if your runing full duplex. You can allways upgrade to fiber or gig ethernet On Star Date Sunday 23 June 2002 05:56 am, Mark Lucas sent this sub-space message. Is it possible to install two or more ethernet cards in my server and get Mandrake to use them both on a single IP address in order to improve network throughput? Mark Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
Re: [expert] Ethernet binding?
Bill wrote: You cant do that it would be like having two nics on a network with the same ip's but you can use two nic's and assign seperate ip's to each one. eth0 and eth0:0 Two NICs would give you eth0 and eth1. In Mandrake you can assign two or more data streams (IPs) to the one NIC, which sets them up as eth0:0 and eth0:1, and so on. -- Ron. [Melbourne, Australia] Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
Re: [expert] Ethernet binding?
On Sun, 23 Jun 2002, Mark Lucas wrote: Is it possible to install two or more ethernet cards in my server and get Mandrake to use them both on a single IP address in order to improve network throughput? There's a method called channel bonding that allows you to setup two nics to almost double your throughput. I don't the specifics, unfortunately but a Google search for Ethernet Channel Bonding returns quite a few hits. Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
Re: [expert] Ethernet binding?
I was under the impression that running two nic's with the same ip addresses and differant mac addresses was a no no and would screw your network. On Star Date Sunday 23 June 2002 07:45 am, [EMAIL PROTECTED] sent this sub-space message. On Sun, 23 Jun 2002, Mark Lucas wrote: Is it possible to install two or more ethernet cards in my server and get Mandrake to use them both on a single IP address in order to improve network throughput? There's a method called channel bonding that allows you to setup two nics to almost double your throughput. I don't the specifics, unfortunately but a Google search for Ethernet Channel Bonding returns quite a few hits. Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
Re: [expert] Ethernet binding?
Bill wrote on Sun, Jun 23, 2002 at 03:56:48PM -0700 : I was under the impression that running two nic's with the same ip addresses and differant mac addresses was a no no and would screw your network. Normally you are correct, however there are two modes that you can utilize to gain additional functionality: 1) bonding: where the driver takes both cards and bonds them together. If you have two 100 Mbit cards, bonding yields a theoretical 200 Mbit channel. Whether the PCI bus hardware can actually provide that sort of throughput is an exercise for the reader (ie reading from one or more hard drives for data and then passing it to the kernel modules when then send it out over the two nics) 2) bridging: If you have two seperate physical networks but have a common netmask, you can configure a bridge such that both sides see a common ip address and you can then control access from one side to the other (a firewall of sorts). A common application of this is the wireless access point. If you have a Prism chipset you can use the HostAP software and it will do all of this for you. In the event that you have two or more wired type nics, the kernel also directly supports bridging. For an example of bridging: ifup eth0 ifup eth1 brctl addbr br0 brctl addif br0 eth0 brctl addif br0 eth1 ifconfig br0 192.168.188.1 Now anybody connected to either nic will access the machine as 192.168.188.1. Blue skies... Todd -- Todd Lyons -- MandrakeSoft, Inc. http://www.mandrakesoft.com/ UNIX was not designed to stop you from doing stupid things, because that would also stop you from doing clever things. -- Doug Gwyn Cooker Version mandrake-release-8.3-0.2mdk Kernel 2.4.18-20mdk msg55615/pgp0.pgp Description: PGP signature
Re: [expert] Ethernet binding?
That makes sense. Thanks for the education. Now I know somethin new. One question though. If you have a 100mb nic and run it in full duplex mode isnt that like running at 200mb? On Star Date Sunday 23 June 2002 04:30 pm, Todd Lyons sent this sub-space message. Bill wrote on Sun, Jun 23, 2002 at 03:56:48PM -0700 : I was under the impression that running two nic's with the same ip addresses and differant mac addresses was a no no and would screw your network. Normally you are correct, however there are two modes that you can utilize to gain additional functionality: 1) bonding: where the driver takes both cards and bonds them together. If you have two 100 Mbit cards, bonding yields a theoretical 200 Mbit channel. Whether the PCI bus hardware can actually provide that sort of throughput is an exercise for the reader (ie reading from one or more hard drives for data and then passing it to the kernel modules when then send it out over the two nics) 2) bridging: If you have two seperate physical networks but have a common netmask, you can configure a bridge such that both sides see a common ip address and you can then control access from one side to the other (a firewall of sorts). A common application of this is the wireless access point. If you have a Prism chipset you can use the HostAP software and it will do all of this for you. In the event that you have two or more wired type nics, the kernel also directly supports bridging. For an example of bridging: ifup eth0 ifup eth1 brctl addbr br0 brctl addif br0 eth0 brctl addif br0 eth1 ifconfig br0 192.168.188.1 Now anybody connected to either nic will access the machine as 192.168.188.1. Blue skies... Todd Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
Re: [expert] Ethernet binding?
Bill wrote on Sun, Jun 23, 2002 at 04:53:42PM -0700 : That makes sense. Thanks for the education. Now I know somethin new. One question though. If you have a 100mb nic and run it in full duplex mode isnt that like running at 200mb? Yes. But that's combining both directions. If we think like that a cop could pull you over for doing 130 in a 60 MPH zone. :) IMHO, throughput is measured by copying from machine A to machine B. It cannot exceed 100 Mb doing that function. In practice, if you get close to 80 Mb, you are doing very good. Blue skies... Todd -- Todd Lyons -- MandrakeSoft, Inc. http://www.mandrakesoft.com/ UNIX was not designed to stop you from doing stupid things, because that would also stop you from doing clever things. -- Doug Gwyn Cooker Version mandrake-release-8.3-0.2mdk Kernel 2.4.18-20mdk msg55625/pgp0.pgp Description: PGP signature
