H3c-technologies H3C WX5500E Series Access Controllers Bedienungsanleitung Seite 172
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Field Descri
p
tion Value
Attribute type Defined by the GARP application.
0x01 for GVRP, indicating the VLAN ID
attribute.
Attribute list
Contains one or multiple attributes. N/A
Attribute
Consists of an Attribute Length, an Attribute
Event, and an Attribute Value.
N/A
Attribute length
Length of an attribute, inclusive of the
attribute length field.
2 to 255 bytes.
Attribute event Event described by the attribute.
• 0x00—LeaveAll event.
• 0x01—JoinEmpty event.
• 0x02—JoinIn event.
• 0x03—LeaveEmpty event.
• 0x04—LeaveIn event.
• 0x05—Empty event.
Attribute value Attribute value.
VLAN ID for GVRP.
If the value of the Attribute event field is
0x00 (LeaveAll event), the Attribute value
field is invalid.
The destination MAC addresses of GARP messages are multicast MAC addresses, and vary with GARP
applications. For example, the destination MAC address of GVRP is 01-80-C2-00-00-21.
GVRP
This section describes GVRP and introduces GVRP registration modes.
Introduction to GVRP
As a GARP application, GVRP uses the operating mechanism of GARP to maintain and propagate
dynamic VLAN registrations throughout a switched LAN.
In a switched LAN, each GVRP-enabled switch sends and receives VLAN declarations and withdrawals
from other GVRP-enabled switches, and dynamically updates its local database, including active VLAN
members and the ports through which each VLAN member can be reached. This makes sure that all
GVRP-enabled switches in a LAN maintain the same VLAN information.
The VLAN information propagated by GVRP includes not only manually configured static VLAN
information but also dynamic VLAN information from other switches.
GVRP registration modes
GVRP is available on trunk ports. It provides the following registration modes:
• Normal mode—Performs dynamic VLAN registrations and deregistrations on the trunk port, and
sends declarations and withdrawals for dynamic and static VLANs. VLANs manually configured
are called static VLANs, and VLANs created by GVRP are called dynamic VLANs.
• Fixed mode—Disables the trunk port from registering or withdrawing dynamic VLAN information,
but allows the port to send declarations for static VLANs. A trunk port in this mode carries only static
VLANs, even if it has been assigned to all VLANs.
- H3C WX5540E Access Controller 1
- Switching Engine 1
- Preface 3
- Symbols 4
- Network topology icons 4
- Port numbering in examples 4
- Obtaining documentation 5
- Technical support 5
- Documentation feedback 5
- Contents 6
- Switch A Switch B 14
- Switch C 14
- Enabling auto power-down 17
- Bulk configuring interfaces 30
- Configuring MAC Information 39
- Operational key 44
- Configuration classes 44
- Reference port 44
- Link aggregation modes 45
- Choosing a reference port 46
- Configuring port isolation 63
- STP protocol packets 65
- Basic concepts in STP 66
- Path cost 67
- STP timers 71
- MSTP features 73
- MSTP basic concepts 73
- MST region 74
- Regional root 75
- Common root bridge 75
- Port roles 75
- How MSTP works 76
- STP configuration task list 78
- RSTP configuration task list 79
- PVST configuration task list 80
- MSTP configuration task list 81
- Configuring an MST region 82
- Configuring edge ports 89
- Performing mCheck 96
- Configuring digest snooping 97
- <DeviceB> system-view 99
- Configuration prerequisites 100
- Configuration procedure 100
- Configuration example 101
- Enabling BPDU guard 101
- Enabling root guard 102
- Enabling loop guard 102
- Enabling TC-BPDU guard 103
- Enabling BPDU drop 104
- MSTP configuration example 105
- PVST configuration example 109
- Configuring BPDU tunneling 113
- Enabling BPDU tunneling 116
- Network requirements 117
- Configuring VLANs 120
- VLAN frame encapsulation 121
- VLAN types 122
- Protocols and standards 122
- Configuring port-based VLANs 125
- Frame handling on a port 126
- Verifying the configuration 130
- Configuring MAC-based VLANs 131
- Configuration considerations 136
- Configuration guidelines 142
- Task Command 143
- Remarks 143
- Configuring super VLANs 144
- Name: VLAN 0005 148
- Tagged Ports: none 148
- Untagged Ports: 148
- Configuring voice VLANs 158
- VLAN assignment mode 162
- Configuring GVRP 169
- GARP timers 170
- GARP PDU format 171
- Introduction to GVRP 172
- GVRP registration modes 172
- GVRP configuration task list 173
- Configuring GVRP functions 173
- Configuring the GARP timers 174
- GVRP configuration examples 176
- Configuring LLDP 181
- LLDPDUs 182
- LLDP-MED TLVs 184
- Working mechanism 185
- LLDP configuration task list 186
- Enabling LLDP polling 188
- Configuring LLDP trapping 193
- LLDP configuration examples 194
- Overview 199
- Configuring MVRP 203
- MRP messages 204
- MRP timers 205
- MVRP configuration task list 206
- Enabling MVRP 207
- Configuring MRP timers 208
- Enabling GVRP compatibility 209
- Configuring Device B 212
- Configuring Device C 213
- Configuring Device D 214
- 1(default), 10 219
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