Command Usage

Broadcasting periodically floods the network with traffic from any active multicast server. If IGMP snooping is disabled, multicast traffic is flooded to all ports on the router. However, if IGMP snooping is enabled, then the first packet for any source group pair is flooded to all DVMRP downstream neighbors. If a packet is received through an interface that the router determines to be the shortest path back to the source (based on interface metrics), then the router forwards the packet on all interfaces except for the incoming interface.

The router will transmit a prune message back out the receiving interface (i.e., the parent interface) to its upstream neighboring router if there are no group members on its child interfaces. A prune message tells the upstream router to stop forwarding packets for a particular source-group pair for the prune lifetime.

If the router that previously sent a prune message now discovers a new group member on one of its connections, it sends a graft message to the upstream router. When an upstream router receives this message, it cancels the prune message. If necessary, graft messages are propagated back toward the source until reaching the nearest live branch in the multicast tree.

The global settings that control the prune and graft messages (i.e., prune lifetime) should be configured to the same values on all routers throughout the network to allow DVMRP to function properly. However, if you encounter problems in maintaining a multicast flow, then you may need to modify the protocol variables which control the exchange of topology information between DVMRP routers; such as the probe interval, neighbor timeout or report interval.

Command Attributes

DVMRP Protocol – Enables/disables DVMRP globally. (Default: Disabled)

Probe Interval – Sets the interval for sending neighbor probe messages to the multicast group address for all DVMRP routers. Probe messages are sent to neighboring DVMRP routers from

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Microsoft ES4649, ES4625 manual Source Flooding Potential hosts Pruning Grafting

ES4649, ES4625 specifications

The Microsoft ES4625 and ES4649 are advanced enterprise-grade servers designed to meet the demands of modern data centers. They blend cutting-edge technology with robust performance, making them an ideal choice for businesses that require reliable processing capabilities, enhanced storage solutions, and improved energy efficiency.

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On the other hand, the ES4649 offers an even more powerful setup, with the option to support high core counts and a larger memory footprint. This feature is particularly beneficial for enterprises that run demanding applications requiring substantial processing power and memory capacity. Both models support DDR4 memory, ensuring faster data access and overall system efficiency.

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Overall, the Microsoft ES4625 and ES4649 offer a compelling combination of performance, flexibility, and security. They are engineered to support the increasingly complex demands of modern enterprise environments, making them a valuable investment for organizations seeking reliable, high-performing server solutions. Whether for virtualized workloads, cloud services, or heavy data computations, these servers are designed to deliver exceptional results.