Reference v4.1.0 Instruction Manual

Network OS Command Reference 467

53-1003115-01

max-hops

Configures the maximum number of hops for a Bridge Protocol Data Unit (BPDU) in an MSTP

region.

Synopsis max-hops hop_count

no max-hops

Operands hop_count Specifies the maximum number of hops for which the BPDU will be valid.

Valid values range from 1 through 40.

Defaults 20 hops

Command Modes Protocol Spanning Tree MSTP configuration mode

Description Use this command to configure the maximum number of hops for a BPDU in an MSTP region.

This parameter is used by all the instances of the MSTP.

Usage Guidelines Specifying the maximum hops for a BPDU prevents the messages from looping indefinitely on the

interface. When you change the number of hops, it affects all spanning-tree instances.

This command functions only in standalone mode.

Enter no max-hops to return to the default value.

Examples To set the number of maximum hops to 25 for all MSTPs:

switch(config)# protocol spanning-tree mstp

switch(conf-mstp)# max-hops 25