Cisco Visual Network Index (VNI) is an interactive tool that can help you to forecast and analyze the growth and use of IP networks worldwide. Cisco VNI intiative includes distinct elements to provide a comprehensive view of the changing IP network landscape:
Cisco VNI Forecast is a model for the estimation of future global [...]
On March 9, 2010 Cisco announced the Cisco® CRS-3 Carrier Routing System (CRS) designed to serve as the foundation of the next-generation Internet and set the pace for the astonishing growth of video transmission, mobile devices and new online services through this decade and beyond.
With more than 12 times the traffic capacity of the [...]
Austrian Companies ASFINAG & X-Tention Win the Cisco and IDG international Innovation Awards 2010
ASFINAG scoops award for implementing reliable communication network in Austria’s tunnels and X-Tention takes prize for its use of innovative IT solutions to link doctor’s surgeries, care homes and hospitals.
Cisco Unified Communications Manager (formerly Cisco CallManager) contains multiple denial of service (DoS) vulnerabilities that if exploited could cause an interruption of voice services. The Session Initiation Protocol (SIP), Skinny Client Control Protocol (SCCP) and Computer Telephony Integration (CTI) Manager services are affected by these vulnerabilities.
To address these vulnerabilities, Cisco has released free software [...]
Cisco ASA 5500 Series Adaptive Security Appliances are affected by the following vulnerabilities:
* TCP Connection Exhaustion Denial of Service Vulnerability
* Session Initiation Protocol (SIP) Inspection Denial of Service Vulnerabilities
* Skinny Client Control Protocol (SCCP) Inspection Denial of Service Vulnerability
* WebVPN Datagram Transport Layer Security (DTLS) Denial of Service [...]
A vulnerability exists in the Cisco Firewall Services Module (FWSM) for the Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers that may cause the Cisco FWSM to reload after processing a malformed Skinny Client Control Protocol (SCCP) message. The vulnerability exists when SCCP inspection is enabled.
Cisco has released free software updates that [...]
To increase testing opportunities and add convenience for certification candidates, Cisco® will be offering the CCIE® Routing and Switching lab exam in additional locations in April 2010, as listed below. A new location in Johannesberg/Midrand, South Africa has been added. The exams will be administered at Pearson Professional Centers which are designed for secure, high-stakes [...]
Cisco IronPort Encryption Appliance devices contain two vulnerabilities that allow remote, unauthenticated access to any file on the device and one vulnerability that allows remote, unauthenticated users to execute arbitrary code with elevated privileges. There are workarounds available to mitigate these vulnerabilities.
Vulnerable Products
The following Cisco IronPort Encryption Appliance versions are affected by [...]
Multiple Cisco products contain either of two authentication vulnerabilities in the Simple Network Management Protocol version 3 (SNMPv3) feature. These vulnerabilities can be exploited when processing a malformed SNMPv3 message. These vulnerabilities could allow the disclosure of network information or may enable an attacker to perform configuration changes to vulnerable devices. The SNMP server is [...]
Cisco announced through their LearningNetwork webpage that the topics (blueprint) for the Cisco Certified Architect have been released. The exam is scheduled to be available February 2010 and qualified candidates will be provided the information as it becomes available.
It will be quite a challenge among these level engineers to be the first one to [...]
Let's say that you have a Cisco router that you use as console server to connect to your devices in the [more]
IP Prefix-List tricky question
A few days ago I did encounter a task in one of these preparation workbooks for CCIE R&S Lab which was very [more]
Packet header graphic representation
I was surfing the Internet in search of some good drawing representing packet header and I come across five [more]
Selective BGP Dampening and parameters tuning
Some time ago, I wrote about BGP Dampening and how this feature can improve the stability of the network. A [more]
I think all network engineers touched, if not used / patched, as least one time a fiber optic patch cord. [more]
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