Tag: Cisco

Home Cisco

27

Mar2014

What is 802.1.q-2005 MSTP, Multi-Instance Spanning Tree?

0
Multi-Instance Spanning Tree (MSTP), IEEE 802.1.q-2005,  to allow for additional features in Rapid Spanning Tree Protocol, such as "Per Vlan" STP as is found in PVST+. The concept behind MSTP is that Layer 2 devices could be further subdivided into regions and vlans could be added to the regions as instances. ... Read More
March 27, 2014Praveen Bahethi

24

Mar2014

How to configure SNMP on network devices?

1
I've been often asked how do you configure SNMP across the variety of network equipment and thought to include a listing here with the use of Variables to define the various inputs that go into an SNMP configuration for the various versions. Variable Definitions ${Read Community String} = SNMP Read-Only ${Write ... Read More
March 24, 2014Praveen Bahethi

15

Jan2014

How to configure STP root and load balancing using Cisco PVST/PVST+?

0
Configuring STP on Cisco switches is straightforward since STP is on by default.  This default ensures loop-free topologies when connecting Cisco Switches and is very useful in Campus and Access LANs. For our example, we'll be using the network topology below. The switches are in a triangle with switchA as ROOT of ... Read More
January 15, 2014Praveen Bahethi

11

Jan2014

What is 802.1D Spanning Tree Protocol?

0
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