Cisco Change Management White Paper Text

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Learn what you can do to protect your infrastructure with caveats and concerns specifically related to ipv6. Take advantage of cisco network architecture to meet regulations for confidentiality, integrity, availability, and audits. Cisco ise focuses on the pervasive service enablement of trustsec for borderless networks. It delivers all the necessary services required by enterprise networks a, profiling, posture and guest management in a single appliance platform. In the future, it will also be used to propagate consistent service policies throughout the borderless network, from any end point to video delivery optimization, branch service personalization, and data center server and service agility. Create a secure, cost effective communications infrastructure that improves productivity, enables new business applications, and enhances business efficiency.

This white paper suggests that the key is to build in sufficient flexibility to accommodate new developments as your needs evolve, while extending the value of your existing it investments, establishing immediate value, and promoting end user adoption. This vendor submitted briefing has been produced by cisco, and is designed, says the company, to help users to navigate the path towards unified communications by suggesting ten areas that should be considered when evaluating enterprise class uc systems. While the paper offers cisco perspectives and solutions, the underlying ten point plan it suggests is based on sensible strategic and operational thinking, and on that basis ucinsight is happy to make it available below. remote network management definition continued: 133 network consists of multiple detection stations called sensor nodes, each of which is small, lightweight and portable. Every sensor node is equipped with a transducer, microcomputer, transceiver and power source.

The transducer generates electrical signals based on sensed physical effects and phenomena. The transceiver, which can be hard wired or wireless, receives commands from a central computer and transmits data to that computer. If a network switch is set for autotrunking, the attacker turns it into a switch that appears as if it has a constant need to trunk that is, to access all the vlans allowed on the trunk port. In cisco's dynamic trunking protocol dtp , the susceptibility of a system to this form of vlan hopping can be minimized by turning off the autotrunking feature dtp off on all switches that do not need to trunk. Details on concepts and configuration requirements are outside the scope of this document. Vss and vpc in the traditional port channel model, link aggregation was only possible to a single device. Mec and vpc are two new port channel concepts that extend link aggregation across two physical switches.

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Mec and vpc address the multitude of new network connectivity challenges where link aggregation connectivity across two devices is required. Hardware requirements: you must have two cisco catalyst 6500 vss devices and two cisco nexus 70 vpc devices equipped with 10ge interfaces for virtual switch link vsl /vpc peer link connectivity. figure 2. vpc and vss interconnection on the cisco catalyst 6500 vss, both switches, which are part of a single domain, are merged into one, providing a single point for configuration management.

The cisco nexus 70 vpc manages loosely coupled independent control planes between the vpc peers two vpc peer devices of a single domain. Each vpc device can be independently managed without any changes to classic management infrastructure and tools. Cisco nexus 70 member ports participating in a single vpc should be configured consistently as it would be done for any standard port channel members. In addition, consistency should be made sure of in the configuration of spanning tree protocol, hot standby router protocol hsrp , and protocol independent multicast pim. In a mec, there can be up to 8 member ports in a single distributed etherchannel. Each vpc peer can have up to 8 active member links, and together, the pair has up to 16 active load balancing links.

As a result, the maximum number of interfaces that can participate in a single distributed etherchannel when interconnecting vss and vpc members is 8. As depicted in figure 2, members of a vpc are distributed between each cisco nexus 70. Since the vpc pairs are seen as a single mec from the vss perspective, one must make sure the member links that are participating in the mec are bundled together with the same port channel id on the cisco catalyst 6500. On the cisco nexus 70, one must also make sure the members are part of the same vpc id.

In figure 2, the mec is a single etherchannel that is being formed between the vpc and the cisco catalyst 6500 pairs. The packet forwarding for mec and vpc has been enhanced to efficiently forward traffic locally on each switch. The hardware has been programmed to forward any traffic that ingresses as long as there is one available link local on that switch to egress the same device. Note: this enhancement is locally significant to the vss and vpc domain it does not affect the reverse traffic coming from the neighboring device s. When multiple members are part of the mec, they can further be load balanced using the hashing algorithm available on both the cisco catalyst 6500 and cisco nexus 70 pairs.