Administrator Guide

Debugging VLAN Stacking.........................................................................................................................................796
VLAN Stacking in Multi-Vendor Networks.............................................................................................................. 796
VLAN Stacking Packet Drop Precedence..................................................................................................................... 800
Enabling Drop Eligibility...............................................................................................................................................800
Honoring the Incoming DEI Value............................................................................................................................. 800
Marking Egress Packets with a DEI Value................................................................................................................ 801
Dynamic Mode CoS for VLAN Stacking......................................................................................................................... 801
Mapping C-Tag to S-Tag dot1p Values.................................................................................................................... 803
Layer 2 Protocol Tunneling.............................................................................................................................................. 803
Enabling Layer 2 Protocol Tunneling........................................................................................................................ 805
Specifying a Destination MAC Address for BPDUs................................................................................................806
Setting Rate-Limit BPDUs......................................................................................................................................... 806
Debugging Layer 2 Protocol Tunneling.................................................................................................................... 806
Provider Backbone Bridging............................................................................................................................................ 806
51 sFlow..................................................................................................................................... 808
Overview............................................................................................................................................................................ 808
Implementation Information.............................................................................................................................................808
Enabling Extended sFlow................................................................................................................................................. 809
Enabling and Disabling sFlow on an Interface................................................................................................................ 810
Enabling sFlow Max-Header Size Extended...................................................................................................................810
sFlow Show Commands.................................................................................................................................................... 811
Displaying Show sFlow Global..................................................................................................................................... 811
Displaying Show sFlow on an Interface......................................................................................................................811
Displaying Show sFlow on a Stack-unit.....................................................................................................................812
Configuring Specify Collectors.........................................................................................................................................812
Changing the Polling Intervals..........................................................................................................................................812
Back-Off Mechanism........................................................................................................................................................ 813
sFlow on LAG ports........................................................................................................................................................... 813
Enabling Extended sFlow.................................................................................................................................................. 813
Important Points to Remember..................................................................................................................................814
52 Simple Network Management Protocol (SNMP)........................................................................ 815
Protocol Overview.............................................................................................................................................................816
Implementation Information..............................................................................................................................................816
SNMPv3 Compliance With FIPS......................................................................................................................................816
Configuration Task List for SNMP...................................................................................................................................817
Important Points to Remember........................................................................................................................................817
Set up SNMP......................................................................................................................................................................817
Creating a Community.................................................................................................................................................818
Setting Up User-Based Security (SNMPv3)............................................................................................................818
Enable SNMPv3 traps................................................................................................................................................. 819
Reading Managed Object Values.....................................................................................................................................819
Writing Managed Object Values......................................................................................................................................820
Configuring Contact and Location Information using SNMP......................................................................................820
Subscribing to Managed Object Value Updates using SNMP..................................................................................... 821
Enabling a Subset of SNMP Traps.................................................................................................................................. 821
Enabling an SNMP Agent to Notify Syslog Server Failure...........................................................................................823
Copy Configuration Files Using SNMP...........................................................................................................................824
24
Contents