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Category Archives for "Networking"

The Benefits RTMT Features in CUCM and CUC

Finally, it’s the blog you’ve all been waiting for! Yes, that’s right folks; the time has come to discuss the benefits of Real-Time Monitoring Tool (RTMT) in CUCM and CUC. All right, I know it’s not the most exciting subject to discuss all the topics on the CCIE Collaboration lab blueprint, but it can help you perform troubleshooting tasks in a very efficient manner. The goal for this blog is to point out a couple useful features of RTMT to give you a nice boost when tackling different lab topics.

For those that are not familiar with RTMT, it can be used to pull traces (log files) for troubleshooting in all Cisco UC servers, monitor real-time platform statistics, check syslog messages, and display a host of “Performance” parameters that can assist the engineer in gathering system information. While those are all great features worthy of our attention, I’d like to focus specifically on a new RTMT feature available in CUCM 9.x called “Session Trace Log View.” This feature is an excellent troubleshooting tool, especially when used with SIP. Essentially what this does for us is organize the traces in such a way as to provide a cohesive view Continue reading

The Upload: Your tech news briefing for April 14

Former Office chief DelBene returns to Microsoft to head strategyKurt DelBene, who left Microsoft as president of its Office group in 2013, is coming back to Microsoft as executive vice president of corporate strategy and planning, reporting to CEO Satya Nadella. After leaving Microsoft last time, he did a stint helping the federal government recover from the bungled Healthcare.gov launch, and has been a partner in a venture capital firm. He’ll be on the lookout for acquisition targets for Microsoft.Turing manuscript sold for more than $1 millionTo read this article in full or to leave a comment, please click here

Nokia wants to buy Alcatel-Lucent, seeking growth and integration of fixed and mobile

Nokia and Alcatel-Lucent are in advanced merger talks, the companies confirmed Tuesday following media speculation that a deal was in the works.The talks could still fall apart, but a deal is on the table that would see Nokia acquire Alcatel-Lucent in a stock swap, the companies said.A merger would give the combined entity a broader product portfolio and greater scale, but would bring its own challenges.It makes sense for Nokia, a mobile broadband specialist, to merge with Alcatel-Lucent, which has a strong position in fixed networks, according to Mark Newman, chief research officer of Ovum’s telecoms research business.As mobile and fixed networks become increasingly integrated, not having the latter is becoming a disadvantage for Nokia, Newman said. The growing worldwide popularity of smartphones has increased the focus on mobile networks, but fixed broadband networks are still needed to deliver high-resolution video content and to provide backhaul for Wi-Fi networks in homes. The integration of Alcatel-Lucent’s fixed offering with the best parts of the two companies’ respective mobile offerings could in that regard be a boon for end-users, he said.To read this article in full or to leave a comment, please click here

Nokia wants to buy Alcatel-Lucent, seeking growth and integration of fixed and mobile

Nokia and Alcatel-Lucent are in advanced merger talks, the companies confirmed Tuesday following media speculation that a deal was in the works.The talks could still fall apart, but a deal is on the table that would see Nokia acquire Alcatel-Lucent in a stock swap, the companies said.A merger would give the combined entity a broader product portfolio and greater scale, but would bring its own challenges.It makes sense for Nokia, a mobile broadband specialist, to merge with Alcatel-Lucent, which has a strong position in fixed networks, according to Mark Newman, chief research officer of Ovum’s telecoms research business.As mobile and fixed networks become increasingly integrated, not having the latter is becoming a disadvantage for Nokia, Newman said. The growing worldwide popularity of smartphones has increased the focus on mobile networks, but fixed broadband networks are still needed to deliver high-resolution video content and to provide backhaul for Wi-Fi networks in homes. The integration of Alcatel-Lucent’s fixed offering with the best parts of the two companies’ respective mobile offerings could in that regard be a boon for end-users, he said.To read this article in full or to leave a comment, please click here

Deterrence will keep a lid on cyberwar, former spy chief says

Major sponsors of cyberwarfare forces are reaching a state of deterrence resembling the mutually assured destruction in nuclear weapons standoffs, former U.S. national intelligence director Dennis Blair said Tuesday.All nation states would suffer if countries engaged in cyberattacks against civilians, and world leaders including those in China and Russia are reluctant to unleash such forces, Blair, a retired U.S. Navy admiral who oversaw U.S. intelligence from 2009 to 2010, told a news conference in Tokyo.Military and civilian systems are often intertwined, Blair said, pointing to GPS as an example of a military technology that is now used in widespread civilian applications from navigation to financial transactions.To read this article in full or to leave a comment, please click here

Indian net neutrality backers get boost from Flipkart retreat on free app access

Indian online retailer Flipkart has abandoned a plan to give customers of mobile operator Bharti Airtel free access to its mobile app after criticism that the move posed a threat to net neutrality.Earlier this month, Airtel launched a marketing platform, Airtel Zero, that allows app developers to pay for their customers to access their services without data charges. The move was, however, criticized by activists as a threat to net neutrality in the country, putting Internet startups and smaller players that can’t afford the fees at a disadvantage.Flipkart’s CEO Sachin Bansal said on Twitter recently that the so-called zero-rating deals reduced data costs for users.To read this article in full or to leave a comment, please click here

Sharp develops 4K smartphone display, undecided on manufacturing plan

Sharp has developed a 5.5-inch display with 3860 x 2160 pixel resolution, which is equivalent to “ultra high definition,” also known as 4K.The prototype LCD display, which could be used in smartphones in the future, has a pixel density of 806 pixels per inch (ppi) and was shown off last week at the China Information Technology Expo in Shenzhen, China. It was part of a larger, 12.5-inch IGZO panel.Sharp hasn’t decided on a schedule for mass production yet. “Currently there are no driver ICs for small 4K panels, so the panel is not ready for mass production at this point,” Sharp spokeswoman Miyuki Nakayama said via email.The company wants to develop and mass-produce 4K screens for clients’ phones but it’s too early to say whether they will be used in Sharp’s own Aquos line of smartphones, she added.To read this article in full or to leave a comment, please click here

RadioShack presses ahead plan for sale of customer data

RadioShack will press on with its plan to sell its customer data, despite opposition from a number of U.S. states.The company has asked a bankruptcy court for approval for a second auction of its assets, which includes the consumer data.The state of Texas, which is leading the action by the states, has opposed the sale of personally identifiable information (PII), citing the online and in-store privacy policies of the bankrupt consumer electronics retailer.The state claimed that it found from a RadioShack deposition that PII of 117 million customers could be involved. But it learned later from testimony in court that the number of customer files offered for sale might be reduced to around 67 million.To read this article in full or to leave a comment, please click here

RadioShack presses ahead plan for sale of customer data

RadioShack will press on with its plan to sell its customer data, despite opposition from a number of U.S. states.The company has asked a bankruptcy court for approval for a second auction of its assets, which includes the consumer data.The state of Texas, which is leading the action by the states, has opposed the sale of personally identifiable information (PII), citing the online and in-store privacy policies of the bankrupt consumer electronics retailer.The state claimed that it found from a RadioShack deposition that PII of 117 million customers could be involved. But it learned later from testimony in court that the number of customer files offered for sale might be reduced to around 67 million.To read this article in full or to leave a comment, please click here

Windows vulnerability can compromise credentials

A vulnerability found in the late 1990s in Microsoft Windows can still be used to steal login credentials, according to a security advisory released Monday.A researcher with security vendor Cylance, Brian Wallace, found a new way to exploit a flaw originally found in 1997. Wallace wrote on Monday the flaw affects any PC, tablet or server running Windows and could compromise as many as 31 software programs.He wrote the flaw was not resolved long ago, but that “we hope that our research will compel Microsoft to reconsider the vulnerabilities.”The vulnerability, called Redirect to SMB, can be exploited if an attacker can intercept communications with a Web server using a man-in-the-middle attack.To read this article in full or to leave a comment, please click here

Windows vulnerability can compromise credentials

A vulnerability found in the late 1990s in Microsoft Windows can still be used to steal login credentials, according to a security advisory released Monday.A researcher with security vendor Cylance, Brian Wallace, found a new way to exploit a flaw originally found in 1997. Wallace wrote on Monday the flaw affects any PC, tablet or server running Windows and could compromise as many as 31 software programs.He wrote the flaw was not resolved long ago, but that “we hope that our research will compel Microsoft to reconsider the vulnerabilities.”The vulnerability, called Redirect to SMB, can be exploited if an attacker can intercept communications with a Web server using a man-in-the-middle attack.To read this article in full or to leave a comment, please click here

Saltstack – Using Pillars and starting to template

In our last post about SaltStack, we introduced the concept of grains.  Grains are bits of information that the Salt minion can pull off the system it’s running on.  SaltStack also has the concept of pillars.  Pillars are sets of data that we can push to the minions and then consume in state or managed files.  When you couple this with the ability to template with Jinja, it becomes VERY powerful.  Let’s take a quick look at how we can start using pillars and templates. 

Prep the Salt Master
The first thing we need to do is to tell Salt that we want to use Pillars.  To do this, we just tell the Salt master where the pillar state files are.  Let’s edit the salt master config file…

vi /etc/salt/master

Now find the ‘Pillar Settings’ section and uncomment the line I have highlighted in red below…

image 
Then restart the salt-master service…

systemctl restart salt-master

So we just told Salt that it should use the ‘/srv/pillar/’ directory for pillar info so we need to now go and create it…

mkdir /srv/pillar/

Now we’re all set.  Pillar information is exported to the Continue reading

The Verizon SuperCookie Won’t Go Away

Update 4/21/2015:
It's been pointed out to me that Relevant Mobile Advertising (RMA - the thing responsible for the SuperCookie) and Customer Proprietary Network Information (CPNI) are not the same thing. That may be, but the link in the opt out instructions on Verizon's RMA info page goes to the CPNI settings below. If there's an RMA opt-out lever available to me somewhere on verizonwireless.com, I sure can't find it. I spoke with a new Verizon phone rep today. She claims to have sorted things out. My HTTP traffic still has the extra header attached. We'll see if that changes in the next few days...
Verizon Wireless made the news a few months ago when somebody noticed that they were adding extra HTTP headers which uniquely identified subscribers to every web request which traversed their network.

There was something of an uproar about it. I checked at least one of my phones, and was disappointed to find the tracking header attached to my traffic.

Then, less than two weeks ago, Verizon announced that customers would be allowed to opt out of having their web requests marked in this way. Many news outlets covered the announcement, Twitter rejoiced, and I Continue reading

Fun With Route-Maps And BGP

I’ve always been a little bit hazy on the circumstances under which a BGP neighbour needs to be cleared. This extremely informative page from Cisco casts a bit of light on the situation. Especially, the section on when to clear a BGP neighbourship.

The official line is any in/outbound policy update will require the BGP session to be cleared to take effect. Obviously, this depends on the direction the policy is applied when you clear the neighbourship in/outbound.

So my question is whether a new route-map constitutes a policy update. Now this may sound like a stupid question (remember the title of the blog please dear reader). But someone legitimately asked me if applying a new policy constituted an update. So let’s find out.

This is my topology:

Test Topology
Test Topology

This is what I’m doing:
– Loopback0 (10.1.1.1/32) is advertised into OSPF on R1 along with the 1.1.1.0/30 network.
– The 1.1.1.0/30 network is advertised into OSPF on R2.
– BGP is used to advertise the 3.3.3.0/24 network using a peer-group TEST.
– R1 and R2 have an iBGP peering in AS 65000 using the physical addresses of Continue reading

New CCIE SPv4, CCIE RSv5 & Multicast Classes This Week

This week I will be running the following free online classes:

*Free for AAP Members

INE will also be offering the following free upcoming online classes:

  • CCNA R&S Overview and Preparation – Tues April 21st @ 09:00 PDT (16:00 UTC)
  • CCNP R&S Overview and Preparation – Thurs April 23rd @ 09:00 PDT (16:00 UTC)
  • CCNP R&S TSHOOT Overview and Preparation – Thurs April 30th @ 09:00 PDT (16:00 UTC)

More information on these classes can be found here.



CCIE Service Provider v4 Kickoff

This class marks the kickoff of INE’s CCIE SPv4 product line for the New CCIE Service Provider Version 4 Blueprint, which goes live May 22nd 2015!  In this class we’ll cover the v3 to v4 changes, including exam format changes and topic adds and removes, recommended readings and resources, INE’s new CCIE SPv4 hardware specification and CCIE SPv4 Workbook, and the schedule for INE’s upcoming CCIE Service Continue reading

New bill would invalidate FCC’s net neutrality rules

A group of Republican lawmakers has introduced a bill that would invalidate the U.S. Federal Communications Commission’s recently passed net neutrality rules.The legislation, introduced by Representative Doug Collins, a Georgia Republican, is called a resolution of disapproval, a move that allows Congress to review new federal regulations from government agencies, using an expedited legislative process.The resolution is the quickest way to stop what Collins called heavy-handed regulations that will hamper broadband deployment and could increase taxes and fees, he said in a statement. “We’ll all be paying more for less,” he added.To read this article in full or to leave a comment, please click here

Turing manuscript sells for $1 million

A 56-page notebook manuscript by Alan Turing, the English mathematician considered to be the father of modern computer science, was sold at auction Monday for US$1.025 million. The manuscript is almost certainly the most extensive by Turing, in his own hand, in existence, experts at Bonhams auction house said. Turing apparently wrote in the notebook in 1942 when he was working in Bletchley Park, England, trying to break German military code. The bidding took place at Bonhams on Madison Avenue in New York, with about 50 bidders present in the auction room and lines open for bids coming in by phone and Internet. The winning bid was from a private collector who did not wish to be identified.To read this article in full or to leave a comment, please click here

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