Reference Guide

Table Of Contents
Handling Access-Challenge Message................................................................................................................... 841
Configuring Challenge Response Authentication for SSHv2.......................................................................... 841
SMS-OTP Mechanism............................................................................................................................................. 842
Configuring the System to Drop Certain ICMP Reply Messages........................................................................842
Dell EMC Networking OS Security Hardening......................................................................................................... 844
Dell EMC Networking OS Image Verification..................................................................................................... 844
Startup Configuration Verification........................................................................................................................845
Configuring the root User Password....................................................................................................................846
Locking Access to GRUB Interface...................................................................................................................... 846
Enabling User Lockout for Failed Login Attempts.............................................................................................847
Chapter 51: Service Provider Bridging....................................................................................... 848
VLAN Stacking.................................................................................................................................................................848
Configure VLAN Stacking....................................................................................................................................... 849
Creating Access and Trunk Ports......................................................................................................................... 850
Enable VLAN-Stacking for a VLAN...................................................................................................................... 850
Configuring the Protocol Type Value for the Outer VLAN Tag......................................................................851
Configuring Dell EMC Networking OS Options for Trunk Ports.................................................................... 851
Debugging VLAN Stacking......................................................................................................................................852
VLAN Stacking in Multi-Vendor Networks......................................................................................................... 852
VLAN Stacking Packet Drop Precedence.................................................................................................................856
Enabling Drop Eligibility........................................................................................................................................... 856
Honoring the Incoming DEI Value......................................................................................................................... 856
Marking Egress Packets with a DEI Value.......................................................................................................... 857
Dynamic Mode CoS for VLAN Stacking.................................................................................................................... 857
Mapping C-Tag to S-Tag dot1p Values............................................................................................................... 859
Layer 2 Protocol Tunneling...........................................................................................................................................859
Enabling Layer 2 Protocol Tunneling.....................................................................................................................861
Specifying a Destination MAC Address for BPDUs.......................................................................................... 862
Setting Rate-Limit BPDUs...................................................................................................................................... 862
Debugging Layer 2 Protocol Tunneling................................................................................................................862
Provider Backbone Bridging......................................................................................................................................... 862
Chapter 52: sFlow..................................................................................................................... 864
Overview...........................................................................................................................................................................864
Implementation Information......................................................................................................................................... 864
Enabling Extended sFlow..............................................................................................................................................865
Enabling and Disabling sFlow on an Interface..........................................................................................................866
Enabling sFlow Max-Header Size Extended.............................................................................................................866
sFlow Show Commands................................................................................................................................................ 867
Displaying Show sFlow Global................................................................................................................................867
Displaying Show sFlow on an Interface............................................................................................................... 868
Displaying Show sFlow on a Stack-unit...............................................................................................................868
Configuring Specify Collectors....................................................................................................................................868
Changing the Polling Intervals..................................................................................................................................... 869
Back-Off Mechanism..................................................................................................................................................... 869
sFlow on LAG ports........................................................................................................................................................869
Enabling Extended sFlow.............................................................................................................................................. 869
Important Points to Remember............................................................................................................................. 870
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