Category: Switching

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27

Mar2014

How do you configure MSTP on HP Comware via CLI?

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We have three HP Comware switches in a triangle with each device being at default configuration after enabling Multi-Instance Spanning Tree (MSTP). We’ll be optimizing the network by adding load-balancing for MSTP and across 20 vlans and link aggregation. A quick overview of the Layer 2 configuration of the network [5800A]display lldp ... Read More
March 27, 2014Praveen Bahethi
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26

Mar2014

How do you configure LACP on Comware?

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Link Aggregration Control Protocol (LACP) is used to combine multiple ethernet ports into a bundle.  This bundle shows up as one port to spanning tree protocol (STP) allowing multiple connections to occur between switches without blocking.  This protocol is also used to connect multiple server links to a switch to ... Read More
March 26, 2014Praveen Bahethi

12

Jan2014

What is Ethernet?

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Ethernet was developed by Robert Metcalfe at Xerox PARC in the early 70s and is a packet switching technology that uses Carrier Sense Mulit-access with Collision Detection (CSMA/CD). Carrier Sense The device (Network Inteface Card) determines if the media (wire) is available, no electrical signalling we can transmit. Multi-access All devices can sense the ... Read More
January 12, 2014Praveen Bahethi

11

Jan2014

What is 802.1D Spanning Tree Protocol?

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Spanning Tree Protocol (STP) was created to allow for loop-free topologies in switch architectures.  Prior to STP,  any switch architecture that had a loop would end up with duplicate frames flooding between switches causing an outage.  Radia Perlman’s algorithm resolved the physical loop by creating a logical blocking solution stopping ... Read More
January 11, 2014Praveen Bahethi