Install Guide

Debugging VLAN Stacking......................................................................................................................................706
VLAN Stacking in Multi-Vendor Networks......................................................................................................... 706
VLAN Stacking Packet Drop Precedence.................................................................................................................709
Enabling Drop Eligibility............................................................................................................................................709
Honoring the Incoming DEI Value.......................................................................................................................... 710
Marking Egress Packets with a DEI Value........................................................................................................... 710
Dynamic Mode CoS for VLAN Stacking......................................................................................................................711
Mapping C-Tag to S-Tag dot1p Values.................................................................................................................712
Layer 2 Protocol Tunneling............................................................................................................................................712
Enabling Layer 2 Protocol Tunneling..................................................................................................................... 714
Specifying a Destination MAC Address for BPDUs........................................................................................... 715
Setting Rate-Limit BPDUs.......................................................................................................................................715
Debugging Layer 2 Protocol Tunneling.................................................................................................................715
Provider Backbone Bridging..........................................................................................................................................715
Chapter 47: sFlow...................................................................................................................... 717
Overview............................................................................................................................................................................ 717
Implementation Information...........................................................................................................................................717
Enabling Extended sFlow............................................................................................................................................... 718
Enabling and Disabling sFlow on an Interface...........................................................................................................719
Enabling sFlow Max-Header Size Extended..............................................................................................................719
sFlow Show Commands................................................................................................................................................. 719
Displaying Show sFlow Global.................................................................................................................................719
Displaying Show sFlow on an Interface............................................................................................................... 720
Displaying Show sFlow on a .................................................................................................................................. 720
Configuring Specify Collectors.................................................................................................................................... 720
Changing the Polling Intervals..................................................................................................................................... 720
Back-Off Mechanism...................................................................................................................................................... 721
sFlow on LAG ports.........................................................................................................................................................721
Enabling Extended sFlow............................................................................................................................................... 721
Important Points to Remember............................................................................................................................. 722
Chapter 48: Simple Network Management Protocol (SNMP)..................................................... 723
Protocol Overview.......................................................................................................................................................... 724
Implementation Information..........................................................................................................................................724
SNMPv3 Compliance With FIPS..................................................................................................................................724
Configuration Task List for SNMP..............................................................................................................................725
Important Points to Remember................................................................................................................................... 725
Set up SNMP................................................................................................................................................................... 725
Creating a Community............................................................................................................................................. 726
Setting Up User-Based Security (SNMPv3)...................................................................................................... 726
Enable SNMPv3 traps.............................................................................................................................................. 727
Reading Managed Object Values.................................................................................................................................727
Writing Managed Object Values.................................................................................................................................. 728
Configuring Contact and Location Information using SNMP............................................................................... 728
Subscribing to Managed Object Value Updates using SNMP..............................................................................729
Enabling a Subset of SNMP Traps..............................................................................................................................730
Enabling an SNMP Agent to Notify Syslog Server Failure....................................................................................730
Copy Configuration Files Using SNMP....................................................................................................................... 731
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