Dell C9000 series, Reference Manual

Page: 1426 / 2286

max-hops
Configure the maximum hop count.
C9000 Series
Syntax
max-hops number
To return to the default values, use the
no max-hops
command.
Parameters
range Enter a number for the maximum hop count. The range is from
1 to 40. The default is
20 .
Defaults 20 hops
Command Modes MULTIPLE SPANNING TREE
Command History This guide is platform-specific. For command information about other platforms, refer
to the relevant Dell Networking OS Command Line Reference Guide .
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.1 Introduced on the S4810.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
6.5.1.0 Introduced.
Usage Information The
max-hops
command is a configuration command that applies to both the IST and
all MST instances in the MSTP region. The BPDUs sent out by the root switch set the
remaining-hops parameter to the configured value of max-hops. When a switch
receives the BPDU, it decrements the received value of the remaining hops and uses
the resulting value as remaining-hops in the BPDUs. If the remaining-hops reach zero,
the switch discards the BPDU and ages out any information that it holds for the port.
Multiple Spanning Tree Protocol (MSTP) 1426