Connectivity Guide

Table Of Contents
Configuring the System to Drop Certain ICMP Reply Messages........................................................................829
Dell EMC Networking OS Security Hardening..........................................................................................................831
Dell EMC Networking OS Image Verification......................................................................................................831
Startup Configuration Verification........................................................................................................................832
Configuring the root User Password....................................................................................................................833
Locking Access to GRUB Interface...................................................................................................................... 833
Enabling User Lockout for Failed Login Attempts............................................................................................ 834
Chapter 51: Service Provider Bridging....................................................................................... 835
VLAN Stacking................................................................................................................................................................ 835
Configure VLAN Stacking....................................................................................................................................... 836
Creating Access and Trunk Ports..........................................................................................................................837
Enable VLAN-Stacking for a VLAN.......................................................................................................................837
Configuring the Protocol Type Value for the Outer VLAN Tag.....................................................................838
Configuring Dell EMC Networking OS Options for Trunk Ports....................................................................838
Debugging VLAN Stacking......................................................................................................................................839
VLAN Stacking in Multi-Vendor Networks......................................................................................................... 839
VLAN Stacking Packet Drop Precedence.................................................................................................................843
Enabling Drop Eligibility............................................................................................................................................843
Honoring the Incoming DEI Value..........................................................................................................................843
Marking Egress Packets with a DEI Value.......................................................................................................... 844
Dynamic Mode CoS for VLAN Stacking.................................................................................................................... 844
Mapping C-Tag to S-Tag dot1p Values............................................................................................................... 846
Layer 2 Protocol Tunneling...........................................................................................................................................846
Enabling Layer 2 Protocol Tunneling.................................................................................................................... 848
Specifying a Destination MAC Address for BPDUs.......................................................................................... 849
Setting Rate-Limit BPDUs...................................................................................................................................... 849
Debugging Layer 2 Protocol Tunneling................................................................................................................849
Provider Backbone Bridging......................................................................................................................................... 849
Chapter 52: sFlow......................................................................................................................851
Overview............................................................................................................................................................................851
Implementation Information.......................................................................................................................................... 851
Enabling Extended sFlow.............................................................................................................................................. 852
Enabling and Disabling sFlow on an Interface..........................................................................................................853
Enabling sFlow Max-Header Size Extended.............................................................................................................853
sFlow Show Commands................................................................................................................................................ 854
Displaying Show sFlow Global................................................................................................................................854
Displaying Show sFlow on an Interface...............................................................................................................855
Displaying Show sFlow on a Stack-unit...............................................................................................................855
Configuring Specify Collectors....................................................................................................................................855
Changing the Polling Intervals..................................................................................................................................... 856
Back-Off Mechanism..................................................................................................................................................... 856
sFlow on LAG ports........................................................................................................................................................856
Enabling Extended sFlow..............................................................................................................................................856
Important Points to Remember............................................................................................................................. 857
Chapter 53: Simple Network Management Protocol (SNMP).....................................................859
Protocol Overview..........................................................................................................................................................860
24
Contents