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Copyright © 2010, Juniper Networks, Inc.
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 560.
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 658 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.
Chapter 18: Configuring Dynamic Interfaces Using Bulk Configuration
657
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