C
HAPTER
35
| VLAN Commands
Configuring VLAN Interfaces
– 1144 –
vlan-trunking
This command allows unknown VLAN groups to pass through the specified
interface. Use the
no
form to disable this feature.
S
YNTAX
[
no
]
vlan-trunking
D
EFAULT
S
ETTING
Disabled
C
OMMAND
M
ODE
Interface Configuration (Ethernet, Port Channel)
C
OMMAND
U
SAGE
◆
Use this command to configure a tunnel across one or more
intermediate switches which pass traffic for VLAN groups to which they
do not belong.
The following figure shows VLANs 1 and 2 configured on switches A and
B, with VLAN trunking being used to pass traffic for these VLAN groups
across switches C, D and E.
Figure 419: Configuring VLAN Trunking
Without VLAN trunking, you would have to configure VLANs 1 and 2 on
all intermediate switches – C, D and E; otherwise these switches would
drop any frames with unknown VLAN group tags. However, by enabling
VLAN trunking on the intermediate switch ports along the path
connecting VLANs 1 and 2, you only need to create these VLAN groups
in switches A and B. Switches C, D and E automatically allow frames
with VLAN group tags 1 and 2 (groups that are unknown to those
switches) to pass through their VLAN trunking ports.
◆
VLAN trunking is mutually exclusive with the “access” switchport mode
(see the
switchport mode
command). If VLAN trunking is enabled on an
interface, then that interface cannot be set to access mode, and vice
versa.
◆
To prevent loops from forming in the spanning tree, all unknown VLANs
will be bound to a single instance (either STP/RSTP or an MSTP
instance, depending on the selected STA mode).
◆
If both VLAN trunking and ingress filtering are disabled on an interface,
packets with unknown VLAN tags will still be allowed to enter this
interface and will be flooded to all other ports where VLAN trunking is
Содержание ECS3510-10PD
Страница 1: ...Management Guide www edge core com 10 Port Layer 2 Fast Ethernet Switch...
Страница 2: ......
Страница 4: ......
Страница 48: ...CONTENTS 48...
Страница 68: ...SECTION I Getting Started 68...
Страница 78: ...CHAPTER 1 Introduction System Defaults 78...
Страница 96: ...CHAPTER 2 Initial Switch Configuration Managing System Files 96...
Страница 98: ...SECTION II Web Configuration 98...
Страница 118: ...CHAPTER 3 Using the Web Interface Navigating the Web Browser Interface 118...
Страница 150: ...CHAPTER 4 Basic Management Tasks Resetting the System 150...
Страница 196: ...CHAPTER 5 Interface Configuration VLAN Trunking 196 Figure 66 Configuring VLAN Trunking...
Страница 238: ...CHAPTER 7 Address Table Settings Configuring MAC Address Mirroring 238...
Страница 264: ...CHAPTER 8 Spanning Tree Algorithm Configuring Interface Settings for MSTP 264...
Страница 274: ...CHAPTER 9 Congestion Control Automatic Traffic Control 274...
Страница 288: ...CHAPTER 10 Class of Service Layer 3 4 Priority Settings 288...
Страница 304: ...CHAPTER 11 Quality of Service Attaching a Policy Map to a Port 304...
Страница 423: ...CHAPTER 13 Security Measures DHCP Snooping 423 Figure 229 Displaying the Binding Table for DHCP Snooping...
Страница 424: ...CHAPTER 13 Security Measures DHCP Snooping 424...
Страница 568: ...CHAPTER 14 Basic Administration Protocols OAM Configuration 568...
Страница 596: ...CHAPTER 15 IP Configuration Setting the Switch s IP Address IP Version 6 596...
Страница 614: ...CHAPTER 1 IP Services Configuring the PPPoE Intermediate Agent 614...
Страница 784: ...CHAPTER 20 System Management Commands Powered Device 784...
Страница 814: ...CHAPTER 22 Remote Monitoring Commands 814...
Страница 1008: ...CHAPTER 26 Interface Commands Power Savings 1008...
Страница 1022: ...CHAPTER 27 Link Aggregation Commands Trunk Status Display Commands 1022...
Страница 1052: ...CHAPTER 29 Congestion Control Commands Automatic Traffic Control Commands 1052...
Страница 1064: ...CHAPTER 31 UniDirectional Link Detection Commands 1064...
Страница 1070: ...CHAPTER 32 Address Table Commands 1070...
Страница 1130: ...CHAPTER 34 ERPS Commands 1130...
Страница 1172: ...CHAPTER 35 VLAN Commands Configuring Voice VLANs 1172...
Страница 1186: ...CHAPTER 36 Class of Service Commands Priority Commands Layer 3 and 4 1186...
Страница 1302: ...CHAPTER 38 Multicast Filtering Commands MVR for IPv6 1302...
Страница 1368: ...CHAPTER 40 CFM Commands Delay Measure Operations 1368...
Страница 1390: ...CHAPTER 42 Domain Name Service Commands 1390...
Страница 1448: ...CHAPTER 44 IP Interface Commands ND Snooping 1448...
Страница 1450: ...SECTION IV Appendices 1450...
Страница 1455: ...APPENDIX A Software Specifications Management Information Bases 1455 UDP MIB RFC 2013...
Страница 1456: ...APPENDIX A Software Specifications Management Information Bases 1456...
Страница 1464: ...APPENDIX D Compliances and Safety Statements CE Mark Declaration of Conformance for EMI and Safety EEC 1464...
Страница 1482: ...COMMAND LIST 1482...
Страница 1493: ......
Страница 1494: ...ECS3510 10PD E032014 ST R03 149100000179A...