It also explains how to configure stp and rstp on the mlseries card. Software configuration guide, cisco ios release 15. All switches from cisco ship with spanning tree protocol stp enabled by default, but if stp is misconfigured for any reason, you can easily enable it. Spanning tree protocol stp is a layer 2 protocol that runs on bridges and switches. Understanding and configuring stp catalyst 45004000 switches that run cisco ios software. Stp feature overview and configuration guide allied telesis. For example, in your example of three switches interconnected in a loop, stp must block one of the interswitch links. Stp and mst configuration guidelines 21 configuring stp 22 enabling stp 23 enabling the extended system id 24 configuring the root bridge 25. The following table lists some of the differences among the. Stprstp configuration s12700 v200r010c00 configuration. Catalyst 3750 switch software configuration guide, cisco ios. Before configuring stp, the network topology should be carefully. What is spanningtree protocol stp and how does it work. Stp also provides one path between end stations on a network, eliminating loops.
This chapter describes how to configure the spanning tree protocol stp on portbased vlans on the catalyst switches. For consistency, the term bridge rather than switch. But if you had 3 vlans, you could block a different interswitch link per vlan, allowing each interswitch link to carry 2 of the 3 vlans traffic. A software switch can be used to simplify communication between devices connected to different fortigate interfaces.
Ethernet card software feature and configuration guide 7 configuring stp and rstp this chapter describes the ieee 802. First, it prevents problems caused by loops on a network. When you enter this command, the software checks the switch priority of the root switches for each vlan. A software switch, or soft switch, is a virtual switch that is implemented at the software, or firmware level, rather than the hardware level. Configure and troubleshoot cisco spanning tree stp. This chapter describes how to configure the spanning tree protocol stp on a catalyst 4500 series switch. Select the vlan from the dropdown menu, choose manual under ip configuration, then enter and ip address and subnet mask. This chapter describes how to configure the spanning tree protocol stp on portbased vlans on the catalyst 3750 switch. S12700 v200r010c00 configuration guide ethernet switching this document describes the configuration of ethernet services, including configuring link aggregation, vlans, voice vlan, vlan mapping, qinq, gvrp, mac table, stprstpmstp, sep, and so on. Catalyst 4500 series switch software configuration guide. The main purpose of stp is to ensure that you do not create loops when you have redundant paths in your network. Configure and troubleshoot cisco spanning tree stp learn how to configure stp, portfast and bpduguard on cisco switches free ccna course handson lab networking fundamentals switching troubleshooting written by alessandro maggio. Contents 9 catalyst 6500 series switch cisco ios software configuration guiderelease 12.
Follow these restrictions and guidelines to avoid configuration problems. To explain basic switch configuration commands, i will use packet tracer network simulator software. You can use any network simulator software or can use a real cisco switch to follow this guide. The purpose of spanning tree is to eliminate loops in the switch system. Configure stp settings on a switch through the cli cisco. Loop protection for spanningtree protocols techlibrary juniper. This document describes the spanning tree feature supported in supermicro layer 2 layer 3 switch. Understanding and configuring spanning tree protocol stp cisco. Spanning tree protocol stp was developed before switches were created in order to deal with an issue that occurred with networks that were implementing network bridges. On routing switches, new vlans have stp disabled by default. Do not disable spanning tree on any vlan in any of the pvst bridges. Configuring rapid reconfiguration spanning tree rstp. Use this command to get information about the role and status of each port on the switch. Refer to these documents for information on the configuration of stp on other switch platforms.
There is no difference in output as long as your selected software contains the commands explained in this tutorial. Using the show spanningtree command without specifying any additional options provides a quick overview of the status of stp for all vlans that are defined on a switch. To configure a switch to become the root for the specified vlan, use the spanningtree vlan vlanid root global configuration command to modify the switch priority from the default value 32768 to a significantly lower value. If you are setting up multiple uplinks from the switch, then you must activate spanning tree to stop network loops and broadcast storms. Catalyst 4500 series switch software configuration guide, 15.
This chapter describes how to configure the spanning tree protocol stp on portbased vlans on the cisco industrial ethernet 2000u series. Do not connect switches with access links because access links may partition a vlan. This article aims to show you how to configure stp on sx300, sx350, sg350x, sx500, sx550x series switches through the cli. To enable spanning tree, connect to your switch and type spanningtree mode while in global configuration mode. Configuring spanning tree protocol stp ftp directory listing hp. Configuring stp and mst catalyst 45004000 switches that run cisco ios software. Spanning tree protocol gs108t and gs110tp smart switch software administration manual spanning tree protocol the spanning tree protocol stp provides a tree topology for any arrangement of bridges.
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