Spanning Tree Protocol Laborübung

Befehlsübersicht Switch (englische Beschreibung)

Wenn Sie sich auf der system view-Ebene befinden, erhalten Sie mit dem folgenden Befehl eine Übersicht der möglichen STP Befehle.

[5500]stp ?

Command	Description
`bpdu-protection`	Specify Bpdu Protection function
`disable`	Disable spanning tree protocol
`enable`	Enable spanning tree protocol
`mcheck`	Specify mcheck parameter
`mode`	Specify state machine mode parameter
`pathcost-standard`	Specify stp port path cost standard
`priority`	Specify bridge priority
`root`	Specify root switch
`timeout-factor`	Specify timeout factor of the spanning tree
`timer`	Specify timers of spanning tree protocol

List of some command line levels.

Command View	Function	Prompt	Command to Enter	Command to leave
User View	Show the basic information about operation and statistics	`<SW5500>`	This is the view you are in after connecting o the Switch	`quit` disconnects to the Switch
System View	Configure system parameters	`[SW5500]`	Enter `system-view` in User View	`quit`or `return` returns to User View
Ethernet Port View	Configure Ethernet port parameters	`[SW5500-Ethernet1/0/1]`	100M Ethernet Port View: Enter `interface ethernet 1/0/1` in System View	`quit` returns to System View `return` returns to User View
VLAN View	Configure VLAN parameters	`[SW5500-Vlan1]`	Enter vlan 1 in System View	`quit` returns to System View `return` returns to User View
VLAN Interface View	Configure IP interface parameters for a VLAN or a VLAN aggregation	`[SW5500-Vlan-interface1]`	Enter `interface vlan-interface 1` in System View	`quit` returns to System View `return` returns to User View

Set Priority of a Specified Bridge (s. Auszug SuperStack 5500 Handbuch, S. 242)

Whether a bridge can be selected as the “root” of the spanning tree depends on its priority. By assigning a lower priority, a bridge can be artificially specified as the root of the spanning tree. You can use the following command to configure the priority of a specified bridge. Perform the following configurations in System View.

Operation Command

Set priority of a specified bridge stp priority bridge_priority
Restore the default priority of specified bridge undo stp priority

Note that if the priorities of all the bridges in the Switching network are the same, the bridge with the smallest MAC address will be selected as the “root”. When RSTP is enabled, an assignment of a priority to the bridge will lead to recalculation of the spanning tree. By default, the priority of the bridge is 32768.

Ergänzungen

a, 2019/06/24 10:09

# jan/02/1970 00:42:12 by RouterOS 6.42.7

# software id = G44Z-XNCQ

#

# model = RouterBOARD 3011UiAS

# serial number = 8EED08F85B47

/interface bridge

add fast-forward=no name=bridge1 protocol-mode=none

add fast-forward=no name=bridge2 protocol-mode=none

/interface bridge port

add bridge=bridge1 interface=ether3

add bridge=bridge2 interface=ether4

add bridge=bridge1 interface=ether6

add bridge=bridge2 interface=ether7

add bridge=bridge1 interface=ether8

add bridge=bridge2 interface=ether9

Richard, 2015/03/19 11:11

„stp interface … cost“ erklären, dass dieser Befehl nur im System-View funktioniert.