Starting in Junos
OS Release 14.1, you can configure VLANs to support simultaneous transmission
of 802.1Q VLAN single-tag and stacked frames on logical interfaces
on the same Ethernet port, and on pseudowire logical interfaces.
Junos VLAN IDs for single-tag VLANs are equivalent to the outer
tags used for stacked (dual-tag) VLANs. When configuring mixed (flexible)
VLANs, any overlap on single-tag VLAN IDs and stacked VLAN outer tag
values is supported only for dynamic VLANs on MPC line cards. When
configuring mixed (flexible) VLANS on DPCE line cards, overlapping
single-tag VLAN IDs and stacked VLAN outer tag values is not supported.
This means that a dynamically created single-tagged VLAN interface
prevents any overlapping stacked VLAN interfaces from being created
or a dynamically created stacked VLAN interface prevents any overlapping
single-tagged VLAN interfaces from being created.
Note: For information about the maximum number of dynamic profiles,
VLAN ranges, and stacked VLAN ranges for dynamic mixed VLAN configurations,
see Dynamic 802.1Q VLAN Overview.
To configure both VLAN and stacked VLAN ranges:
- Access the interface over which you want to create dynamic
VLANs.
user@host# edit interfaces ge-0/0/0
- Indicate that this interface is for use with both VLAN
and stacked VLAN ranges.
[edit interfaces ge-0/0/0]
user@host# set flexible-vlan-tagging
- Define interface automatic configuration values.
[edit interfaces ge-0/0/0]
user@host# edit auto-configure
- Specify that you want to modify VLAN ranges.
[edit interfaces ge-0/0/0 auto-configure]
user@host# edit vlan-ranges
- Access the VLAN dynamic profile for which you want to
configure VLAN ranges.
[edit interfaces ge-0/0/0 auto-configure vlan-ranges]
user@host# edit dynamic-profile VLAN-PROF1
- Specify the VLAN ranges that you want the dynamic profile
to use. The following example specifies a lower VLAN ID limit of 2000
and an upper VLAN ID limit of 3000.
[edit interfaces ge-0/0/0 auto-configure vlan-ranges dynamic-profile VLAN-PROF1]
user@host# set ranges 2000-3000
Note: You can configure multiple dynamic profile associations
(up to 32) with different VLAN range groups on each physical interface.
- Specify that you want to modify stacked VLAN ranges.
[edit interfaces ge-0/0/0 auto-configure]
user@host# edit stacked-vlan-ranges
- Access the VLAN dynamic profile for which you want to
configure VLAN ranges.
[edit interfaces ge-0/0/0 auto-configure stacked-vlan-ranges]
user@host# edit dynamic-profile VLAN-PROF2
- Specify the outer and inner stacked VLAN ranges that you
want the dynamic profile to use. The following example specifies an
outer stacked VLAN ID range from 3001 through 4000 (to avoid overlapping
VLAN IDs with single-tag VLANs) and an inner stacked VLAN ID range
of
any (enabling a range from 1 through 4094 for the inner
stacked VLAN ID).[edit interfaces ge-0/0/0 auto-configure stacked-vlan-ranges dynamic-profile VLAN-PROF2]
user@host# set ranges 3001-4000,any
Note: You can configure multiple dynamic profile associations
(up to 32) with different VLAN range groups on each physical interface.
Change History Table
Feature support is determined by the platform and release you are using. Use Feature Explorer to determine if a feature is supported on your platform.
14.1
Starting in Junos
OS Release 14.1, you can configure VLANs to support simultaneous transmission
of 802.1Q VLAN single-tag and stacked frames on logical interfaces
on the same Ethernet port, and on pseudowire logical interfaces.
