Advanced Traffic Management Guide K/KA/KB.15.15

VLAN tagging considerations:........................................................................................55
Special VLAN types...........................................................................................................57
VLAN support and the default VLAN...............................................................................57
The primary VLAN........................................................................................................57
The secure Management VLAN.......................................................................................58
Operating notes for Management VLANs.........................................................................59
Voice VLANs.....................................................................................................................60
Operating rules for voice VLANs.....................................................................................60
Components of voice VLAN operation.............................................................................60
Voice VLAN access security............................................................................................61
Effects of VLANs on other switch features..............................................................................61
Spanning Tree operation with VLANs...............................................................................61
Spanning Tree operates differently in different devices............................................................61
IP interfaces..................................................................................................................61
VLAN MAC address......................................................................................................61
Port trunks....................................................................................................................61
Port monitoring.............................................................................................................62
Jumbo packet support....................................................................................................62
VLAN restrictions...............................................................................................................62
Migrating Layer 3 VLANs using VLAN MAC configuration......................................................62
VLAN MAC address reconfiguration................................................................................62
Handling incoming and outgoing VLAN Traffic.................................................................63
Incoming VLAN data packets and ARP requests...........................................................63
Outgoing VLAN traffic .............................................................................................63
Sending heartbeat packets with a configured MAC Address...............................................63
Operating notes............................................................................................................64
Correcting an unsupported configuration...................................................................................64
2 GVRP......................................................................................................66
Using GVRP...........................................................................................................................66
Planning for GVRP operation....................................................................................................66
Viewing the switch's current GVRP configuration.........................................................................67
Viewing and configuring GVRP (Menu)......................................................................................68
Enabling and disabling GVRP on the switch...............................................................................69
Controlling how individual ports handle advertisements for new VLANs ........................................69
Listing static and dynamic VLANs on a GVRP-enabled switch........................................................70
Converting a Dynamic VLAN to a Static VLAN...........................................................................71
About GVRP..........................................................................................................................71
GVRP operating notes........................................................................................................72
Example of GVRP operation...........................................................................................72
Options for a GVRP-aware port receiving advertisements.........................................................73
Options for a port belonging to a tagged or untagged static VLAN..........................................73
IP addressing....................................................................................................................73
Per-port options for handling GVRP unknown VLANs...............................................................73
Per-port options for dynamic VLAN advertising and joining......................................................74
Initiating advertisements.................................................................................................74
Enabling a port for dynamic joins....................................................................................74
Parameters for controlling VLAN propagation behavior......................................................74
GVRP and VLAN access control...........................................................................................76
Advertisements and dynamic joins...................................................................................76
Port-Leave from a dynamic VLAN.....................................................................................76
3 Multiple instance spanning tree operation....................................................77
Planning an MSTP application..................................................................................................77
Configuring MSTP at a glance..................................................................................................77
Configuring MSTP operation mode and global settings................................................................79
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