Network Engineering Weekly Newsletter - Friday, October 31, 2014

Network Engineering newsletter

Top new questions this week: IPv6 Multicast - Purposes for the Interface-Local scope? On an IPv6 multicast packet, the last nibble of the first hextet represents the Scope of the packet. This defines effectively how far you want your multicast packet to travel. The address makeup is ... ipv6 multicast   asked by Eddie 3 votes answered by Sander Steffann 3 votes Cannot use 5GHz band Wi-Fi from channels 100-140 My AP operates in the 5Ghz band. There are no problems using Channel 36 to 64; however, clients can't even detect the SSID if I use Channel 100 to 140. Below is a screenshot of Netspot showing all ... router wireless   asked by user2562609 2 votes answered by YLearn 2 votes Autonegotiation disabled, different speed, hub I am beginner in networking and I have two questions, because I can't understand it well. I know how auto-negotiation works, but what happens if two connected devices have different speeds and ... switch ethernet autonegotiation   asked by Yeynno 2 votes answered by Ricky Beam 2 votes Managed Cisco switch w/POE reports all power consumption on first connected device, rapidly flaps power on devices connected subsequently The first device that I connect will work fine, reporting power consumption correctly. Connecting a second or third device will seem to increase the power consumption on the first port while not ... cisco power-over-ethernet   asked by Erik I 1 vote answered by kopait 0 votes difference between udp and tcp http://www.dummies.com/how-to/content/the-tcpip-networking-protocol-suite.html I was reading the difference between the two, and in the example of TCP: For example, when a user running a Web ... ipv4 tcp udp   asked by john 1 vote answered by Jordan Head 1 vote Routing on firewall vs L3 switches So we have an environment with several VLANs connected to a FortiNet firewall using multiple interfaces trunked back to our L3 Dell PowerConnect 6248P switches. Currently the FortiNet is setup to do ... routing vlan interface powerconnect   asked by Donavon Yelton 1 vote answered by dfex 2 votes In which layer is TLS situated within the TCP/IP stack? I have an endless amount of books and websites at my disposal, but this question stays totally unanswered, or rather every author invests his own solution for this problem. It's even placed within ... protocol-theory   asked by Fleshgrinder 1 vote answered by dfex 5 votes Greatest hits from previous weeks: Why does OSPF need Type2 LSAs? Learning more about OSPF for CCNP studies. I'm looking at how OSPF builds its links, and have just covered Type1 LSAs. Looking at Type1 LSAs, I'm wondering why these are even necessary? The book ... cisco routing router ospf   asked by A L 7 votes answered by John Jensen 11 votes What would cause high latency anytime there is traffic on WAN? I have a network that has been experiencing slow internet speeds. After a great deal of troubleshooting, I have determined that any streaming content/downloads will cause the latency of WAN traffic to ... latency congestion wan   asked by Blackjack00 10 votes answered by LapTop006 7 votes

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