Concept Guide

51 sFlow....................................................................................................................................................... 909
Overview........................................................................................................................................................................ 909
Implementation Information......................................................................................................................................... 909
Important Points to Remember..............................................................................................................................910
Enabling Extended sFlow.............................................................................................................................................. 910
Enabling and Disabling sFlow on an Interface..............................................................................................................911
Enabling sFlow Max-Header Size Extended................................................................................................................ 911
sFlow Show Commands................................................................................................................................................912
Displaying Show sFlow Global.................................................................................................................................912
Displaying Show sFlow on an Interface................................................................................................................. 913
Displaying Show sFlow on a Stack-unit.................................................................................................................914
Conguring Specify Collectors..................................................................................................................................... 914
Changing the Polling Intervals.......................................................................................................................................914
Back-O Mechanism.....................................................................................................................................................915
sFlow on LAG ports....................................................................................................................................................... 915
Enabling Extended sFlow.............................................................................................................................................. 915
Important Points to Remember..............................................................................................................................916
52 Simple Network Management Protocol (SNMP)...................................................................................... 917
Protocol Overview..........................................................................................................................................................918
Implementation Information.......................................................................................................................................... 918
SNMPv3 Compliance With FIPS..................................................................................................................................918
Conguration Task List for SNMP................................................................................................................................919
Related Conguration Tasks....................................................................................................................................919
Important Points to Remember................................................................................................................................... 920
Set up SNMP................................................................................................................................................................. 920
Creating a Community............................................................................................................................................ 920
Setting Up User-Based Security (SNMPv3)........................................................................................................920
Reading Managed Object Values.................................................................................................................................922
Writing Managed Object Values...................................................................................................................................922
Conguring Contact and Location Information using SNMP...................................................................................923
Subscribing to Managed Object Value Updates using SNMP................................................................................. 923
Enabling a Subset of SNMP Traps...............................................................................................................................924
Enabling an SNMP Agent to Notify Syslog Server Failure....................................................................................... 926
Copy Conguration Files Using SNMP........................................................................................................................927
Copying a Conguration File.................................................................................................................................. 929
Copying Conguration Files via SNMP.................................................................................................................929
Copying the Startup-Cong Files to the Running-Cong..................................................................................930
Copying the Startup-Cong Files to the Server via FTP................................................................................... 930
Copying the Startup-Cong Files to the Server via TFTP..................................................................................931
Copy a Binary File to the Startup-Conguration.................................................................................................. 931
Additional MIB Objects to View Copy Statistics...................................................................................................931
Obtaining a Value for MIB Objects........................................................................................................................ 932
MIB Support to Display Reason for Last System Reboot.........................................................................................933
Viewing the Reason for Last System Reboot Using SNMP...............................................................................933
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