Deployment Guide

31 Dell EMC Networking OS10 Enterprise Edition Deployment Guide with Cisco ACI
A Additional information
A.1 Reset OS10EE switches to factory defaults
To reset OS10EE switches back to the factory default configuration, enter the following commands:
OS10# delete startup-configuration
Proceed to delete startup-configuration [yes/no(default)]:yes
OS10# reload
System configuration has been modified. Save? [yes/no]:no
Proceed to reboot the system? [confirm yes/no]:yes
The switch reboots with default configuration settings.
A.2 Spanning Tree Protocol recommendations
By default, OS10EE uses Rapid per-VLAN Spanning Tree Plus (RPVST+) across all switching platforms.
OS10EE also supports RSTP and MST.
Use caution when connecting an RPVST+ to an existing RSTP environment. RPVST+ creates a single
topology per VLAN with the default VLAN, typically VLAN 1, for the Common Spanning Tree (CST) with
RSTP.
For non-native VLANs, all Bridge Protocol Data Unit (BPDU) traffic is tagged and forwarded by the upstream,
RSTP-enable switch, with the associated VLAN. These BPDUs use a protocol-specific multicast address. Any
other RPVST+ tree that is attached to the RSTP tree might processes these packets accordingly leading to
the potential of unexpected trees.
Note: When connecting to an existing environment that is not using RPVST+, Dell EMC Networking
recommends changing to the existing spanning tree protocol before connecting an OS10EE switch.
In the example below, RSTP is enabled globally. MST configuration is similar.
OS10(config)# spanning-tree mode rstp
OS10(config)# end
OS10#show spanning-tree brief
Spanning tree enabled protocol rstp with force-version rstp
Executing IEEE compatible Spanning Tree Protocol
Root ID Priority 0, Address 4c76.25e8.f2c0
Root Bridge hello time 2, max age 20, forward delay 15
Bridge ID Priority 32768, Address 2004.0f00.cd1e
Configured hello time 2, max age 20, forward delay 15
Flush Interval 200 centi-sec, Flush Invocations 95
Flush Indication threshold 0 (MAC flush optimization is disabled)