11-7
Cisco ME 3400 EthernetAccess Switch SoftwareConfiguration Guide
78-17058-01
Chapter11 Configuring VLANs Creating and Modifying VLANs
These sections contain VLAN configuration information:
•Default Ethernet VLAN Configuration, page 11-7
•VLAN Configuration Guidelines, page 11-8
•Creating or Modifying an Ethernet VLAN, page 11-9
•Assigning Static-Access Ports to a VLAN, page 11-10
•Creating an Extended-Range VLAN with an Internal VLAN ID, page 11-11
•Configuring UNI VLANs, page 11-12
If the switch is running the metro IP access or metro access image, for more ef f icient m anagement of the
MAC address table space available on the switch, you can control which VLANs learn MAC addresses
by disabling MAC address learning on specific VLANs. See the “Disabling MAC Address Learning on
a VLAN” section on page5-26 for more information.
Default Ethernet VLAN Configuration
The switch supports only Ethernet interfaces. Tab le 11- 2 shows the default configuration for Ethernet
VLANs.
Note On extended-range VLANs, you can change only the MT U si ze , th e private VLAN, t he r em ote SPAN,
and the UNI VLAN configuration. All other characteristics must remain at the default conditions.
Table11-2 Ethernet VLAN Defaults and Ranges
Parameter Default Range
VLAN ID 1 1 to 4094.
Note Extended-range VLANs (VLAN
IDs 1006 to 4094) are not saved in
the VLAN database.
VLAN name VLANxxxx, where xxxx
represents four numeric digits
(including leading zeros) equal
to the VLAN ID number
No range
IEEE 802.10 SAID 100001 (100000 plus the
VLAN ID) 1 to 4294967294
MTU size 1500 1500 to 9198
Translational bridge 1 0 0 to1005
Translational bridge 2 0 0 to1005
VLAN state active active, suspend
Remote SPAN disabled enabled, disabled
Private VLANs none configured 2 to 1001, 1006 to 4094.
UNI VLAN UNI isolated VLAN 2 to 1001, 1006 to 4094.
VLAN 1 is always a UNI isolated VLAN.