Specifications

Configuring MSTP
March 14, 2011 Page 19 of 29
Figure 7 MSTP Simple Network Configuration
Procedure 1showshowtoconfigureSwitches1and2forMSTP.
Adjusting MSTP Parameters
YoumayneedtoadjustcertainSpanningTreeparametersifthedefaultvaluesarenotsuitablefor
yourbridgeconfiguration.Referbackto“AdjustingSpanningTreeParameters”onpage 12and
“AdjustingRSTPParameters”onpage 16forinformationonadjustingSpanningTreedefaults.
Changesmadetoglobalandport‐related
SpanningTreedefaultswilltakeaffectifthedeviceis
runninginSTP,RSTP,orMSTP.
Monitoring MSTP
UsethecommandsinTable 6tomonitorMSTPstatisticsandconfigurationsonN‐Series,S‐Series,
stackable,andstandaloneswitchdevices.Youcanalsousetheshowcommandsdescribedin
“ReviewingandEnablingSpanningTree”onpage11toreviewinformationrelatedtoall
SpanningTreeprotocolactivity.
Procedure 1 Configuring Switches 1 and 2 for Simple MSTP
Step Task Command(s)
1. Create VLANs 2 and 3. set vlan create 2-3
2. Set each switch’s configuration name to South. set spantree mstcfgid cfgname South
3. Create MSTI SID 2. set spantree msti sid 2 create
4. Create MSTI SID 3. set spantree msti sid 3 create
5. Create a FID-to-SID mapping for VLAN 2 to
SID 2.
set spantree mstmap 2 sid 2
6. Create a FID-to-SID mapping for VLAN 3 to
SID 3.
set spantree mstmap 3 sid 3
Table 6 Commands for Monitoring MSTP
Task Command
Verify that MSTP is running on the device. show spantree version
Display the maximum configurable MSTIs allowed
on the device.
show spantree maxconfigurablestps