Concept Guide

VLAN Stacking in Multi-Vendor Networks...........................................................................................................843
VLAN Stacking Packet Drop Precedence...................................................................................................................847
Enabling Drop Eligibility........................................................................................................................................... 847
Honoring the Incoming DEI Value.......................................................................................................................... 848
Marking Egress Packets with a DEI Value............................................................................................................ 848
Dynamic Mode CoS for VLAN Stacking.....................................................................................................................849
Mapping C-Tag to S-Tag dot1p Values.................................................................................................................. 850
Layer 2 Protocol Tunneling............................................................................................................................................ 851
Implementation Information....................................................................................................................................852
Enabling Layer 2 Protocol Tunneling......................................................................................................................853
Specifying a Destination MAC Address for BPDUs.............................................................................................853
Setting Rate-Limit BPDUs......................................................................................................................................853
Debugging Layer 2 Protocol Tunneling..................................................................................................................854
Provider Backbone Bridging.........................................................................................................................................854
50 sFlow.......................................................................................................................................................855
Overview........................................................................................................................................................................ 855
Implementation Information......................................................................................................................................... 855
Important Points to Remember............................................................................................................................. 856
Enabling and Disabling sFlow on an Interface............................................................................................................856
Enabling sFlow Max-Header Size Extended.............................................................................................................. 856
sFlow Show Commands............................................................................................................................................... 857
Displaying Show sFlow Global................................................................................................................................858
Displaying Show sFlow on an Interface................................................................................................................ 858
Displaying Show sFlow on a Stack-unit................................................................................................................ 859
Conguring Specify Collectors.................................................................................................................................... 859
Changing the Polling Intervals......................................................................................................................................859
Back-O Mechanism.................................................................................................................................................... 860
sFlow on LAG ports.......................................................................................................................................................860
Enabling Extended sFlow..............................................................................................................................................860
Important Points to Remember.............................................................................................................................. 861
51 Simple Network Management Protocol (SNMP)...................................................................................... 862
Protocol Overview.........................................................................................................................................................863
Implementation Information..........................................................................................................................................863
SNMPv3 Compliance With FIPS................................................................................................................................. 863
Conguration Task List for SNMP...............................................................................................................................864
Related Conguration Tasks...................................................................................................................................864
Important Points to Remember................................................................................................................................... 865
Set up SNMP.................................................................................................................................................................865
Creating a Community............................................................................................................................................ 865
Setting Up User-Based Security (SNMPv3)....................................................................................................... 865
Reading Managed Object Values................................................................................................................................. 867
Writing Managed Object Values...................................................................................................................................867
Conguring Contact and Location Information using SNMP...................................................................................868
Subscribing to Managed Object Value Updates using SNMP................................................................................. 868
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