Administrator Guide

Creating Access and Trunk Ports...........................................................................................................................725
Enable VLAN-Stacking for a VLAN....................................................................................................................... 725
Conguring the Protocol Type Value for the Outer VLAN Tag.......................................................................... 726
Conguring Options for Trunk Ports..................................................................................................................... 726
Debugging VLAN Stacking......................................................................................................................................727
VLAN Stacking in Multi-Vendor Networks........................................................................................................... 728
VLAN Stacking Packet Drop Precedence...................................................................................................................732
Enabling Drop Eligibility............................................................................................................................................732
Honoring the Incoming DEI Value.......................................................................................................................... 732
Marking Egress Packets with a DEI Value............................................................................................................ 733
Dynamic Mode CoS for VLAN Stacking..................................................................................................................... 734
Mapping C-Tag to S-Tag dot1p Values...................................................................................................................735
Layer 2 Protocol Tunneling............................................................................................................................................736
Implementation Information....................................................................................................................................737
Enabling Layer 2 Protocol Tunneling......................................................................................................................738
Specifying a Destination MAC Address for BPDUs.............................................................................................738
Setting Rate-Limit BPDUs......................................................................................................................................738
Debugging Layer 2 Protocol Tunneling..................................................................................................................739
Provider Backbone Bridging......................................................................................................................................... 739
51 sFlow........................................................................................................................................................ 740
Overview.........................................................................................................................................................................740
Implementation Information..........................................................................................................................................740
Important Points to Remember...............................................................................................................................741
Enabling and Disabling sFlow.........................................................................................................................................741
Enabling and Disabling sFlow on an Interface....................................................................................................... 741
Enabling sFlow Max-Header Size Extended................................................................................................................741
sFlow Show Commands................................................................................................................................................743
Displaying Show sFlow Global................................................................................................................................ 743
Displaying Show sFlow on an Interface.................................................................................................................743
Displaying Show sFlow on a Stack Unit................................................................................................................ 744
Conguring Specify Collectors.....................................................................................................................................744
Changing the Polling Intervals...................................................................................................................................... 744
Changing the Sampling Rate........................................................................................................................................ 745
Sub-Sampling........................................................................................................................................................... 745
Back-O Mechanism.....................................................................................................................................................745
sFlow on LAG ports....................................................................................................................................................... 746
Enabling Extended sFlow.............................................................................................................................................. 746
52 Simple Network Management Protocol (SNMP)......................................................................................747
Supported Modes...........................................................................................................................................................747
Implementation Information..........................................................................................................................................748
Conguring the Simple Network Management Protocol..........................................................................................748
Important Points to Remember..............................................................................................................................748
Setting up SNMP.....................................................................................................................................................748
Creating a Community.............................................................................................................................................748
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