Users Guide

Debugging VLAN Stacking..............................................................................................................................787
VLAN Stacking in Multi-Vendor Networks..................................................................................................788
VLAN Stacking Packet Drop Precedence..........................................................................................................792
Enabling Drop Eligibility.................................................................................................................................. 792
Honoring the Incoming DEI Value................................................................................................................793
Marking Egress Packets with a DEI Value....................................................................................................793
Dynamic Mode CoS for VLAN Stacking.............................................................................................................794
Mapping C-Tag to S-Tag dot1p Values....................................................................................................... 795
Layer 2 Protocol Tunneling..................................................................................................................................796
Implementation Information......................................................................................................................... 798
Enabling Layer 2 Protocol Tunneling...........................................................................................................798
Specifying a Destination MAC Address for BPDUs....................................................................................799
Setting Rate-Limit BPDUs...............................................................................................................................799
Debugging Layer 2 Protocol Tunneling......................................................................................................800
Provider Backbone Bridging................................................................................................................................800
49 sFlow................................................................................................................................................................... 801
Overview.................................................................................................................................................................. 801
Implementation Information............................................................................................................................... 801
Important Points to Remember....................................................................................................................802
Enabling Extended sFlow..................................................................................................................................... 802
Enabling and Disabling sFlow on an Interface.................................................................................................803
Enabling sFlow Max-Header Size Extended.....................................................................................................803
sFlow Show Commands...................................................................................................................................... 804
Displaying Show sFlow Global......................................................................................................................804
Displaying Show sFlow on an Interface...................................................................................................... 805
Displaying Show sFlow on a Stack-unit...................................................................................................... 805
Configuring Specify Collectors...........................................................................................................................806
Changing the Polling Intervals............................................................................................................................806
Back-Off Mechanism............................................................................................................................................806
sFlow on LAG ports............................................................................................................................................... 807
Enabling Extended sFlow..................................................................................................................................... 807
Important Points to Remember....................................................................................................................808
50 Simple Network Management Protocol (SNMP)........................................................................................ 809
Protocol Overview.................................................................................................................................................809
Implementation Information............................................................................................................................... 810
SNMPv3 Compliance With FIPS.......................................................................................................................... 810
Configuration Task List for SNMP....................................................................................................................... 811
Related Configuration Tasks...........................................................................................................................811
Important Points to Remember...........................................................................................................................811
Set up SNMP............................................................................................................................................................ 811
Creating a Community....................................................................................................................................812
Setting Up User-Based Security (SNMPv3)..................................................................................................812
Reading Managed Object Values........................................................................................................................ 813
Writing Managed Object Values..........................................................................................................................814
Configuring Contact and Location Information using SNMP.......................................................................814
Contents
25