Dell Force10 C150 Manual page 14

Deploying the Dell Force10 MXL into a Cisco Nexus Network Environment
MXL1(conf)#exit
MXL1#
For additional information regarding SSH please refer to the MXL User Guide.
After configuring SSH and having confirmed the configuration is correct by logging in using SSH, it is
recommended to disable Telnet for security reasons.
Disable the Telnet Service on the MXL
Telnet provides simple remote connectivity to the MXL's CLI and is enabled by default. It is however
not as secure as SSH and is not allowed in many environments due to security concerns. The following
example shows how to disable the telnet service on the MXL.
MXL1#configure
MXL1(conf)#no ip telnet server enable
MXL1(conf)#exit
MXL1#
Determine if Spanning Tree is already enabled
The goal is to run Per-VLAN Spanning Tree (PVST) but before PVST is configured, other spanning tree
implementations must not already be enabled. In this example, RSTP is already running so it must be
disabled before PVST can be enabled.
MXL1#show run | grep spanning
protocol spanning-tree rstp
MXL1#configure
MXL1#protocol spanning-tree rstp
MXL1(conf-rstp)#disable
MXL1(conf-rstp)#exit
MXL1(conf)#no protocol spanning-tree rstp
MXL1(conf)#exit
MXL1#
Enable Per-VLAN Spanning Tree on the MXL
Per-VLAN Spanning Tree (PVST) is an implementation of the spanning-tree protocol where a separate
spanning tree is run inside of each VLAN. This allows network administrators to configure each VLAN
with optimal root placement and active paths across a network topology. Most Cisco Nexus network
environments run PVST and this document shows how to configure Dell Force10 MXL switches to
operate natively in these environments by also running PVST.
MXL1#configure
MXL1(conf)#protocol spanning-tree pvst
MXL1(conf-pvst)#no disable
MXL1(conf-pvst)#exit
MXL1(conf)#exit
MXL1#
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