
C
HAPTER
35
| VLAN Commands
Configuring VLAN Interfaces
– 838 –
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 304: 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
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 ES3510MA-DC
Страница 1: ...Management Guide www edge core com 8 Port Layer 2 Fast Ethernet Switch...
Страница 2: ......
Страница 4: ......
Страница 6: ...ABOUT THIS GUIDE 6...
Страница 44: ...FIGURES 44...
Страница 50: ...TABLES 50...
Страница 52: ...SECTION I Getting Started 52...
Страница 62: ...CHAPTER 1 Introduction System Defaults 62...
Страница 80: ...CHAPTER 2 Initial Switch Configuration Managing System Files 80...
Страница 82: ...SECTION II Web Configuration 82...
Страница 98: ...CHAPTER 3 Using the Web Interface Navigating the Web Browser Interface 98...
Страница 126: ...CHAPTER 4 Basic Management Tasks Resetting the System 126...
Страница 164: ...CHAPTER 5 Interface Configuration VLAN Trunking 164 Figure 57 Configuring VLAN Trunking...
Страница 202: ...CHAPTER 7 Address Table Settings Configuring MAC Address Mirroring 202...
Страница 452: ...CHAPTER 17 IP Services Displaying the DNS Cache 452...
Страница 498: ...CHAPTER 19 Using the Command Line Interface CLI Command Groups 498...
Страница 588: ...CHAPTER 22 SNMP Commands 588...
Страница 596: ...CHAPTER 23 Remote Monitoring Commands 596...
Страница 650: ...CHAPTER 24 Authentication Commands Management IP Filter 650...
Страница 738: ...CHAPTER 27 Interface Commands 738...
Страница 760: ...CHAPTER 29 Port Mirroring Commands RSPAN Mirroring Commands 760...
Страница 782: ...CHAPTER 32 Address Table Commands 782...
Страница 810: ...CHAPTER 33 Spanning Tree Commands 810...
Страница 862: ...CHAPTER 35 VLAN Commands Configuring Voice VLANs 862...
Страница 876: ...CHAPTER 36 Class of Service Commands Priority Commands Layer 3 and 4 876...
Страница 932: ...CHAPTER 38 Multicast Filtering Commands Multicast VLAN Registration 932...
Страница 956: ...CHAPTER 39 LLDP Commands 956...
Страница 1020: ...CHAPTER 42 Domain Name Service Commands 1020...
Страница 1026: ...CHAPTER 43 DHCP Commands DHCP Client 1026...
Страница 1058: ...CHAPTER 44 IP Interface Commands IPv6 Interface 1058...
Страница 1060: ...SECTION IV Appendices 1060...
Страница 1065: ...APPENDIX A Software Specifications Management Information Bases 1065 Trap RFC 1215 UDP MIB RFC 2013...
Страница 1066: ...APPENDIX A Software Specifications Management Information Bases 1066...
Страница 1088: ...COMMAND LIST 1088...
Страница 1097: ......
Страница 1098: ...ES3510MA DC E122010 ST R01 150200000251A...