Setup Guide

Two Factor Authentication (2FA)................................................................................................................................904
Handling Access-Challenge Message...................................................................................................................905
Conguring Challenge Response Authentication for SSHv2.............................................................................905
SMS-OTP Mechanism............................................................................................................................................905
Conguring the System to Drop Certain ICMP Reply Messages............................................................................906
Dell EMC Networking OS Security Hardening........................................................................................................... 907
Dell EMC Networking OS Image Verication....................................................................................................... 907
Startup Conguration Verication.........................................................................................................................909
Conguring the root User Password..................................................................................................................... 910
Locking Access to GRUB Interface........................................................................................................................910
Enabling User Lockout for Failed Login Attempts.................................................................................................911
50 Service Provider Bridging.........................................................................................................................912
VLAN Stacking................................................................................................................................................................912
Important Points to Remember.............................................................................................................................. 913
Congure VLAN Stacking....................................................................................................................................... 913
Creating Access and Trunk Ports........................................................................................................................... 914
Enable VLAN-Stacking for a VLAN........................................................................................................................915
Conguring the Protocol Type Value for the Outer VLAN Tag...........................................................................915
Conguring Dell EMC Networking OS Options for Trunk Ports.........................................................................915
Debugging VLAN Stacking......................................................................................................................................916
VLAN Stacking in Multi-Vendor Networks............................................................................................................917
VLAN Stacking Packet Drop Precedence................................................................................................................... 921
Enabling Drop Eligibility............................................................................................................................................ 921
Honoring the Incoming DEI Value.......................................................................................................................... 922
Marking Egress Packets with a DEI Value............................................................................................................ 922
Dynamic Mode CoS for VLAN Stacking.....................................................................................................................923
Mapping C-Tag to S-Tag dot1p Values...................................................................................................................924
Layer 2 Protocol Tunneling........................................................................................................................................... 925
Implementation Information....................................................................................................................................926
Enabling Layer 2 Protocol Tunneling......................................................................................................................927
Specifying a Destination MAC Address for BPDUs.............................................................................................927
Setting Rate-Limit BPDUs......................................................................................................................................927
Debugging Layer 2 Protocol Tunneling..................................................................................................................928
Provider Backbone Bridging.........................................................................................................................................928
51 sFlow........................................................................................................................................................929
Overview.........................................................................................................................................................................929
Implementation Information..........................................................................................................................................929
Important Points to Remember............................................................................................................................. 930
Enabling Extended sFlow..............................................................................................................................................930
Enabling and Disabling sFlow on an Interface.............................................................................................................931
Enabling sFlow Max-Header Size Extended............................................................................................................... 931
sFlow Show Commands............................................................................................................................................... 932
Displaying Show sFlow Global................................................................................................................................932
Displaying Show sFlow on an Interface.................................................................................................................933
Contents
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