Juniper JUNOSE 11.1.X - LINK LAYER CONFIGURATION 4-7-2010, Configuration Manual

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Additional Profile Characteristics for Upper Interfaces
In addition to VLAN attributes and nested profile assignments, the base profile for a
dynamic VLAN subinterface can also include individual characteristics for several
upper-interface encapsulation types, provided that no nested profile assignment for
the specified encapsulation type is in the base profile. If, on the other hand, a nested
profile assignment for this encapsulation type exists in the base profile, the router
obtains all characteristics for that encapsulation type from the nested profile and not
from the base profile.
For lists of the characteristics for each supported upper-interface encapsulation type,
see “Profile Characteristics” on page 564.
Bulk Configuration of VLAN Ranges
Dynamic creation of VLAN subinterfaces requires you to configure a range of
single-tagged VLAN IDs and double-tagged S-VLAN IDs on the VLAN major interface
and assign a name to this range. You can also configure a range of S-VLAN IDs that
is based on agent-circuit-identifier information. See “Bulk Configuration of VLAN
Ranges Using Agent-Circuit-Identifier Information” on page 664 for information.
Each VLAN range consists of one or more nonoverlapping VLAN subranges. A VLAN
subrange is a group of VLAN IDs and S-VLAN IDs that reside within the VLAN range
you specify.
The process of configuring a VLAN range for a dynamic VLAN subinterface is referred
to as
bulk configuration . You create a bulk configuration by issuing the vlan
bulk-config command. For example, the following commands create a VLAN bulk
configuration named myBulkConfig on the specified VLAN interface.
host1(config)# interface gigabitEthernet 2/0
host1(config-if)# vlan bulk-config myBulkConfig svlan-range 101 1100 1 375
svlan-range 1300 1500 500 650
In the example, the vlan bulk-config command configures a VLAN range made up
of two VLAN subranges. The first subrange configures S-VLANs 101–1100 and VLANs
1–375. The second subrange configures S-VLANs 1300–1500 and VLANs 500–650.
NOTE: For information about the maximum number of VLAN bulk configurations
supported per router and line module, see JUNOSe Release Notes , Appendix A , System
Maximums .
After you issue the vlan bulk-config command, the router provisions all VLAN IDs
and S-VLAN IDs in the specified VLAN range at the same time. The router does not
dynamically create the VLAN subinterface until it receives incoming data traffic on
the VLAN ID or S-VLAN ID.
After you create a named VLAN range, you cannot remove the underlying VLAN
major interface until you issue the
no vlan bulk-config command to remove the
VLAN range from that interface.
Configuring VLAN Dynamic Subinterfaces
■ 663
Chapter 18: Configuring Dynamic Interfaces Using Bulk Configuration