A quick and dirty explanation is that a single line of communication using LACP will not split packets over multiple interfaces. For example, if you have a single TCP connection streaming packets from HostA to HostB it will not span interfaces to send those packets. I’ve been looking at LACP a lot here lately for … Read more
READ. YOUR. CONFIGS. And when that fails… READ. ALL. OUTPUTS. Do you see what’s in ifcfg-bond0? No, do you understand what’s in ifcfg-bond0? What in the world of slippery penguins is miimmon=100? Oh I’m sorry, did you mean miimon=100? Yeah, I think you meant miimon and not miimmon. Also, a big giveaway is that when … Read more
There are “multi-WAN” or “dual WAN” routers that can perform some rudimentary load-balancing and failover using multiple Internet connections. There are a variety of price-points and feature sets, so you’d do well to shop around and compare reviews. You’ll never get the full bandwidth of both Internet connections to be “shared” for a single TCP … Read more
The switches may already be sending you the information you want. If they are Cisco switches, by default they will be using a process called CDP (Cisco Discovery Protocol) which will provide you information about the switch where it is connected. You can use tcpdump to view this information with the following (substituting the appropriate … Read more
I had a similar problem trying to raise the speed of a drbd synchronization over two gigabit links some time ago. In the end I managed to get about 150MB/sec synch speed. These were the settings that I applied on both nodes: ifconfig bond0 mtu 9000 ifconfig bond0 txqueuelen 10000 echo 3000 > /proc/sys/net/core/netdev_max_backlog You … Read more