White Papers

Table Of Contents
Debugging VLAN Stacking......................................................................................................................................836
VLAN Stacking in Multi-Vendor Networks......................................................................................................... 836
VLAN Stacking Packet Drop Precedence.................................................................................................................840
Enabling Drop Eligibility............................................................................................................................................840
Honoring the Incoming DEI Value......................................................................................................................... 840
Marking Egress Packets with a DEI Value........................................................................................................... 841
Dynamic Mode CoS for VLAN Stacking.....................................................................................................................841
Mapping C-Tag to S-Tag dot1p Values................................................................................................................843
Layer 2 Protocol Tunneling...........................................................................................................................................843
Enabling Layer 2 Protocol Tunneling....................................................................................................................845
Specifying a Destination MAC Address for BPDUs.......................................................................................... 846
Setting Rate-Limit BPDUs...................................................................................................................................... 846
Debugging Layer 2 Protocol Tunneling................................................................................................................846
Provider Backbone Bridging......................................................................................................................................... 846
Chapter 51: sFlow......................................................................................................................848
Overview...........................................................................................................................................................................848
Implementation Information......................................................................................................................................... 848
Enabling Extended sFlow.............................................................................................................................................. 849
Enabling and Disabling sFlow on an Interface..........................................................................................................850
Enabling sFlow Max-Header Size Extended.............................................................................................................850
sFlow Show Commands.................................................................................................................................................851
Displaying Show sFlow Global.................................................................................................................................851
Displaying Show sFlow on an Interface............................................................................................................... 852
Displaying Show sFlow on a Stack-unit...............................................................................................................852
Configuring Specify Collectors....................................................................................................................................852
Changing the Polling Intervals..................................................................................................................................... 853
Back-Off Mechanism..................................................................................................................................................... 853
sFlow on LAG ports........................................................................................................................................................853
Enabling Extended sFlow.............................................................................................................................................. 853
Important Points to Remember............................................................................................................................. 854
Chapter 52: Simple Network Management Protocol (SNMP).....................................................856
Protocol Overview.......................................................................................................................................................... 857
Implementation Information..........................................................................................................................................857
SNMPv3 Compliance With FIPS................................................................................................................................. 857
Configuration Task List for SNMP............................................................................................................................. 858
Important Points to Remember...................................................................................................................................858
Set up SNMP................................................................................................................................................................... 858
Creating a Community............................................................................................................................................. 859
Setting Up User-Based Security (SNMPv3)......................................................................................................859
Enable SNMPv3 traps..............................................................................................................................................860
Reading Managed Object Values................................................................................................................................ 860
Writing Managed Object Values...................................................................................................................................861
Configuring Contact and Location Information using SNMP................................................................................861
Subscribing to Managed Object Value Updates using SNMP..............................................................................862
Enabling a Subset of SNMP Traps............................................................................................................................. 863
Enabling an SNMP Agent to Notify Syslog Server Failure................................................................................... 864
Copy Configuration Files Using SNMP......................................................................................................................865
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