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Now that we are moving towards IPv6, the logical move would be to also run OSPF for that protocol suite, which makes sense and reduces the learning curve for implementation and support. But, that would mean that you have to run two OSPF processes — one for IPv4 unicast and one for IPv6 unicast. That means two sets of policies have to be applied, including security for OSPF itself. Running OSPFv3 for both IPv4 and IPv6 reduces the number routing protocols and the configuration that goes with that. It makes it easier to implement policy in a consistent way for both protocol suites.

Routers and switches make up the bulk of the network infrastructure and are vulnerable to attack. In a previous article, I talked about some of the different ways of hardening your network devices. In this blog, I’d like to specifically examine the routing protocols used on the major Cisco network operating systems.

Precision Time Protocol (PTP) is a protocol designed to go beyond what Network Time Protocol (NTP) can offer relative to accuracy. PTP is IEEE standard 1588 that can give local computing systems accuracy within the sub-microsecond range (such as microsecond, nanosecond or picoseconds) whereas NTP is within milliseconds or longer. PTP standard was first released in 2002 and known as 1588-2002. In 2008, the IEEE released a revised standard for PTP, known as 1588-2008, that improved the accuracy and precision of the protocol. It is also known as PTPv2 and is not backward compatible with the older version. PTP was developed for packet based network for control and measurement systems.

Take charge of your Cisco network devices with Python programming As a network engineer, you might wonder why there’s any need for you to learn Python. After all, network automation is clearly where the industry is headed. And there are many tools that allow yo...

This course teaches you how to deploy Cisco® Enterprise Chat and Email (ECE) into an existing Enterprise Contact Center environment.

Cisco U. not only brings together the depth of industry-leading certification, product, and role-based training that our learners have come to know and trust, including AppDynamics and Meraki, but also includes training from other adjacent technologies and learning p...

Cisco U. not only brings together the depth of industry-leading certification, product, and role-based training that our learners have come to know and trust, including AppDynamics and Meraki, but also includes training from other adjacent technologies and learning p...

CVP Development and Scripting – Part 1 is part of the Cisco CCE/CVP suite of Contact Center suite. CVPDS-1 teaches each student to use the features of Call Studio to build self-service IVR applications for CVP VXML Server, and to pass data between CCE/ICM and CVP. St...

If you need to control the digits contained in the telephone number that enter or leave a gateway, this white paper helps you learn about digit manipulation, including adding, subtracting, and changing telephone numbers.