White Papers

Table Of Contents
Debugging VLAN Stacking......................................................................................................................................792
VLAN Stacking in Multi-Vendor Networks..........................................................................................................792
VLAN Stacking Packet Drop Precedence.................................................................................................................795
Enabling Drop Eligibility............................................................................................................................................795
Honoring the Incoming DEI Value..........................................................................................................................796
Marking Egress Packets with a DEI Value.......................................................................................................... 796
Dynamic Mode CoS for VLAN Stacking.................................................................................................................... 797
Mapping C-Tag to S-Tag dot1p Values................................................................................................................798
Layer 2 Protocol Tunneling...........................................................................................................................................799
Enabling Layer 2 Protocol Tunneling....................................................................................................................800
Specifying a Destination MAC Address for BPDUs...........................................................................................801
Setting Rate-Limit BPDUs.......................................................................................................................................801
Debugging Layer 2 Protocol Tunneling.................................................................................................................801
Provider Backbone Bridging.........................................................................................................................................802
Chapter 47: sFlow..................................................................................................................... 803
Overview...........................................................................................................................................................................803
Implementation Information......................................................................................................................................... 803
Enabling Extended sFlow.............................................................................................................................................. 804
Enabling and Disabling sFlow on an Interface..........................................................................................................805
Enabling sFlow Max-Header Size Extended.............................................................................................................805
sFlow Show Commands................................................................................................................................................ 806
Displaying Show sFlow Global................................................................................................................................806
Displaying Show sFlow on an Interface............................................................................................................... 807
Displaying Show sFlow on a Stack-unit...............................................................................................................807
Configuring Specify Collectors.................................................................................................................................... 807
Changing the Polling Intervals..................................................................................................................................... 808
Back-Off Mechanism..................................................................................................................................................... 808
sFlow on LAG ports........................................................................................................................................................808
Enabling Extended sFlow.............................................................................................................................................. 808
Important Points to Remember.............................................................................................................................809
Chapter 48: Simple Network Management Protocol (SNMP)...................................................... 811
Protocol Overview...........................................................................................................................................................812
Implementation Information.......................................................................................................................................... 812
SNMPv3 Compliance With FIPS.................................................................................................................................. 812
Configuration Task List for SNMP.............................................................................................................................. 813
Important Points to Remember....................................................................................................................................813
Set up SNMP....................................................................................................................................................................813
Creating a Community.............................................................................................................................................. 814
Setting Up User-Based Security (SNMPv3).......................................................................................................814
Enable SNMPv3 traps.............................................................................................................................................. 815
Reading Managed Object Values................................................................................................................................. 815
Writing Managed Object Values...................................................................................................................................816
Configuring Contact and Location Information using SNMP................................................................................816
Subscribing to Managed Object Value Updates using SNMP...............................................................................817
Enabling a Subset of SNMP Traps.............................................................................................................................. 818
Enabling an SNMP Agent to Notify Syslog Server Failure.................................................................................... 821
Copy Configuration Files Using SNMP...................................................................................................................... 822
Contents
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