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Understanding bisection bandwidth

I have trouble understanding the concept of bisection bandwidth in high performance computing clusters.

Wikipedia article on bisection bandwidth, and online materials say that bisection bandwidth is the minimum number of li...

BGP RTBH setup with ISP

I had a discussion a while ago, related how to stop DDoS. Read this first: BGP null route when DDoS?

Finally, we talked to the ISP, and it agreed on setting up a BGP trigger so the next time a DDoS happens, we can trigger R...

Accessing devices on different subnets using a switch

I have two devices which come up with default IP addresses:

Device 1 - 192.168.168.168 mask 255.255.255.0
Device 2 - 192.168.1.254 mask 255.255.255.0

I can commonly deduce that both the devices are part of the 192.168.0.0/16 network....

How do I build a USB-to-rollover RJ45 Cisco console cable?

I haven't found a guide on the web and am wondering if anyone can point me to a how-to or show me the steps. Basically, I'd like to craft something like this: http://www.amazon.com/CableRack-Rollover-Console-Cable-Cisco/dp/B0...

Usage of Flow label in IPv6 header?

I have been reading the IPv6 Flow Label Specification (RFC 6437) and I would like to ask about the purpose of setting this label.

In case of just using the 2-tuple (source address, destination address), the packets will reac...

VLANs: No Internet Access

I've set up a new VLAN (VLAN 11) to service subnet 10.0.11.024. It's primarily for wired PCs. I have DHCP working. I can browse all of my network, file shares, ping interfaces etc. I can't get my new VLAN devices out onto th...

VLANs: No Internet Access

I've set up a new VLAN (VLAN 11) to service subnet 10.0.11.0\24. It's primarily for wired PCs. I have DHCP working. I can browse all of my network, file shares, ping interfaces etc. I can't get my new VLAN devices out onto th...