Concept Guide

Honoring the Incoming DEI Value..........................................................................................................................859
Marking Egress Packets with a DEI Value............................................................................................................859
Dynamic Mode CoS for VLAN Stacking.....................................................................................................................860
Mapping C-Tag to S-Tag dot1p Values................................................................................................................... 861
Layer 2 Protocol Tunneling........................................................................................................................................... 862
Implementation Information....................................................................................................................................863
Enabling Layer 2 Protocol Tunneling......................................................................................................................864
Specifying a Destination MAC Address for BPDUs.............................................................................................864
Setting Rate-Limit BPDUs......................................................................................................................................864
Debugging Layer 2 Protocol Tunneling................................................................................................................. 865
Provider Backbone Bridging.........................................................................................................................................865
49 sFlow.......................................................................................................................................................866
Overview.........................................................................................................................................................................866
Implementation Information......................................................................................................................................... 866
Important Points to Remember..............................................................................................................................867
Enabling Extended sFlow.............................................................................................................................................. 867
Enabling and Disabling sFlow on an Interface............................................................................................................ 868
Enabling sFlow Max-Header Size Extended...............................................................................................................868
sFlow Show Commands............................................................................................................................................... 869
Displaying Show sFlow Global................................................................................................................................869
Displaying Show sFlow on an Interface.................................................................................................................870
Displaying Show sFlow on a Stack-unit................................................................................................................. 871
Conguring Specify Collectors......................................................................................................................................871
Changing the Polling Intervals.......................................................................................................................................871
Back-O Mechanism.....................................................................................................................................................872
sFlow on LAG ports....................................................................................................................................................... 872
Enabling Extended sFlow.............................................................................................................................................. 872
Important Points to Remember..............................................................................................................................873
50 Simple Network Management Protocol (SNMP)......................................................................................874
Protocol Overview......................................................................................................................................................... 875
Implementation Information..........................................................................................................................................875
SNMPv3 Compliance With FIPS..................................................................................................................................875
Conguration Task List for SNMP............................................................................................................................... 876
Related Conguration Tasks................................................................................................................................... 876
Important Points to Remember....................................................................................................................................877
Set up SNMP..................................................................................................................................................................877
Creating a Community.............................................................................................................................................877
Setting Up User-Based Security (SNMPv3)........................................................................................................ 877
Reading Managed Object Values................................................................................................................................. 879
Writing Managed Object Values...................................................................................................................................879
Conguring Contact and Location Information using SNMP...................................................................................880
Subscribing to Managed Object Value Updates using SNMP................................................................................. 880
Enabling a Subset of SNMP Traps............................................................................................................................... 881
Enabling an SNMP Agent to Notify Syslog Server Failure....................................................................................... 883
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