Networks

Recent Enhancements to ARIN’s whoIS-RWS Service

ARIN deployed a series of enhancements to its Whois-RWS service today. This includes enabling CIDR support and IPv6 lookups in the search box on the web page, provided plain text rendering of lists of ASNs and networks on the web - plus enhanced CIDR query matching on WHOIS port 43. more

Internet Service Restored in Egypt

Renesys reports that Internet services in Egypt have been restored. According to the report, Egyptian Internet providers returned to the Internet at 09:29:31 UTC (11:29am Cairo time). "Websites such as the Egyptian Stock Exchange, Commercial International Bank of Egypt, MCDR, and the US Embassy in Cairo, are once again reachable. All major Egyptian ISPs appear to have readvertised routes to their domestic customer networks in the global routing table."
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DDoS Attack Size Breaks 100 Gbps for First Time, Up 1000% Since 2005

"2010 should be viewed as the year distributed denial of service (DDoS) attacks became mainstream as many high profile attacks were launched against popular Internet services and other well known targets," reports Arbor Networks in its just released Sixth Annual Worldwide Infrastructure Security Report. According to the report, the year also witnessed a sharp escalation in the scale and frequency of DDoS attack activity on the Internet. The 100 Gbps attack barrier was reached for the first time while application layer attacks hit an all-time high. Service providers experienced a marked impact on operational expense, revenue loss and customer churn as a result. more

Some Observations on Reachability of Egyptian Networks and Providers

Different media are reporting that Internet and other forms of electronic communications are being disrupted in Egypt. Presumably after a government order in response to the protests. Looking at BGP data we can confirm that according to our analysis 88% of the ‘Egyptian Internet’ has fallen of the Internet. In this post I’ll share some observations I made with regards to the reachability of Egyptian networks and providers. more

Egyptian Government Shuts Down Most Internet and Cell Services

The Egyptian government has disabled most Internet and cell phone services in an apparent effort to disrupt the anti-government protests gripping the country. Egypt's four primary Internet providers all stopped moving data early Friday, effectively cutting off Egyptians from the outside world and each other. more

21st Century Triple Networks: Ubiquitous 4G, WiFi, & Wires

The best engineers on the planet are coming to the same conclusion: a hybrid 4G/WiFi/landline network is the way to meet mobile demand. Folks like John Donovan of AT&T and Masayoshi Son of Softbank in Japan had this vision around 2007-2008. As the iPhone/iPad/Android made the coming demand clear, networks planners around the world evolved similar strategies. more

Popular Websites Agree to Participate in ‘World IPv6 Day’

On 8 June, 2011, Google, Facebook, Yahoo!, Akamai and Limelight Networks will be amongst some of the major organisations that will offer their content over IPv6 for a 24-hour "test drive". The goal of the Test Drive Day is to motivate organizations across the industry - Internet service providers, hardware makers, operating system vendors and web companies - to prepare their services for IPv6 to ensure a successful transition as IPv4 addresses run out. more

Addressing 2010

It's January again, and being the start of another year, it's as good a time as any to look at the last 12 months and see what the Internet was up to in 2010. This is an update to the report prepared 12 months ago when looking at 2009, so lets see what has changed in the past 12 months in addressing the Internet, and look at how address allocation information can inform us of the changing nature of the network itself. more

Why DNS Blacklists Don’t Work for IPv6 Networks

All effective spam filters use DNS blacklists or blocklists, known as DNSBLs. They provide an efficient way to publish sets of IP addresses from which the publisher recommends that mail systems not accept mail. A well run DNSBL can be very effective; the Spamhaus lists typically catch upwards of 80% of incoming spam with a very low error rate. DNSBLs take advantage of the existing DNS infrastructure to do fast, efficient lookups. A DNS lookup typically goes through three computers... more

Cisco Collaboration Summit - Where Unified Communications Could Be Going

This year's Cisco Collaboration Summit was a step up from last year, and I say that for good reason. Last year's event was good -- all of Cisco's events are good -- but the venue was too small and it took away from the messaging. For 2010, Cisco went out of town to the classy and classic Arizona Biltmore in Phoenix. They don't build them like this anymore, and to me, this setting did far more justice for what Cisco has to say about collaboration. more

Will the Cloud Kill Telecom Vendors?

There are many big questions in telecom these days, and this is one that's on my mind right now. Over the past few months, I've participated in events or briefed with leading vendors in our space, namely Avaya, ShoreTel, BroadSoft, Aastra, Metaswitch, Mitel, Interactive Intelligence, and this week Cisco. Every analyst has their own core circle of vendors they stay close to, but I'd say that's a pretty fair representation of who's driving telecom. To varying degrees, all of these vendors have a cloud story, and the more I hear it, the more I start to wonder what it really means. more

China and Taiwan to Lead the Development of 4G

China missed out on playing a leadership role in the development of 3G and as we predicted at that time, China would most certainly start looking at 4G for a major involvement in developing the technologies for it. more

Myanmar Internet Down from Massive DDoS Attack

Craig Labovitz of Arbor Networks reports: "Back in 2007, the Myanmar government reportedly severed all Myanmar Internet connectivity in a crackdown over growing political unrest. Yesterday, Myanmar once again fell of the Internet. Over the course of the past several days, Myanmar's main Internet provider, the Ministry of Post and Telecommunication (or PTT for short), suffered a large, sustained DDoS attack disrupting most network traffic in and out of the country." more

Global Spam Levels Drop Following Certain Events

If you haven't noticed lately, spam levels around the world have started dropping especially in October after a couple of events occurred. The first is a Russian crackdown on alleged spam king Igor Gusev, thought to be involved in the operations of SpamIt.com. SpamIt mysteriously shut down in late September, perhaps because Gusev caught wind of law enforcement starting to take notice of him. more

IPv6 for Mobile Networks: Time to Act Now!

Mobile Network Operators (MNOs) serve the largest constituent of connected devices. There are over 4.6B GSM (and its derivatives) subscriptions today. When you add the CDMA family along with technologies with smaller footprints such as WiMax, IDEN to this list, that number tops 5B mark. On the other hand there are only (yes only!) 800M Internet hosts per ISC. Considering such a small percentage of those 5B or so devices are capable of being an Internet host and out of that percentage even a much smaller percentage is connected at a given time, one can understand the sheer potential of explosion in the number of Internet hosts as mobile devices in the next 3-5 years. more