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7,910 results for
Understanding and Configuring Spanning Tree Protocol (STP) on Catalyst Switches
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Spanning Tree Protocol (STP) is a Layer 2 protocol that runs on bridges and switches. The specification for STP is IEEE 802.1D. The main purpose of STP is to ensure that you do not create loops when you have redundant paths in your network....
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www.cisco.com/en/US/tech/tk389/tk621/technologies_configuration_example09186a008009467c.shtml
17 Aug 2006
The 802.1D Spanning Tree Protocol (STP) standard was designed at a time when the recovery of connectivity after an outage within a minute or so was considered adequate performance. With the advent of Layer 3 switching in LAN environments, bridging now competes with...
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www.cisco.com/en/US/tech/tk389/tk621/technologies_white_paper09186a0080094cfa.shtml
24 Oct 2006
Multiple Spanning Tree (MST) is an IEEE standard inspired from the Cisco proprietary Multiple Instances Spanning Tree Protocol (MISTP) implementation. This document assumes that the reader is familiar with Rapid STP (RSTP) (802.1w), as MST heavily relies on...
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www.cisco.com/en/US/tech/tk389/tk621/technologies_white_paper09186a0080094cfc.shtml
17 Apr 2007
Backbone fast is a Cisco proprietary feature that, once enabled on all switches of a bridge network, can save a switch up to 20 seconds (max_age) when it recovers from an indirect link failure. After a quick review of some Spanning-Tree Protocol (STP)...
www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a00800c2548.shtml
30 Aug 2005
This document describes the Spanning Tree Protocol (STP) timers and the rules to follow in order to tune the timers.
www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a0080094954.shtml
30 Jan 2006
This document provides guidelines to use Cisco IOS® software to troubleshoot issues with Spanning-Tree Protocol (STP). There are specific commands which apply to the Catalyst 6500/6000 only; however, you can apply most of the principles to any Cisco Catalyst...
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www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a0080136673.shtml
01 Sep 2005
When you monitor Spanning-Tree Protocol (STP) operations, you may be concerned when you see topology change counters incrementing in the statistics log. Topology changes are normal in STP. However, too many of them can have an impact on network performances....
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www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a0080094797.shtml
10 Oct 2005
This document presents a list of recommendations that help to implement a safe network with regard to bridging for Cisco Catalyst switches that run Catalyst OS (CatOS) and Cisco IOS Software. This document discusses some of the common reasons that Spanning Tree Protocol...
www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a00800951ac.shtml
30 Aug 2005
This document explains the PortFast Bridge Protocol Data Unit (BPDU) guard feature. This feature is one of the Spanning Tree Protocol (STP) enhancements that Cisco created. This feature enhances switch network reliability, manageability, and security.
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www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a008009482f.shtml
01 Sep 2005
Spanning Tree Protocol (STP) resolves physically redundant topologies into loop-free, tree-like topologies. The biggest issue with STP is that some hardware failures can cause it to fail. This failure creates forwarding loops (or STP loops). Major network...
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www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a0080094640.shtml
22 Jan 2007
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