S-Vlan Subinterface With An Untagged C-Vlan Id Overview; Multiple Atm Virtual Circuits Over A Single Pseudowire Overview - Juniper JUNOSE 11.2.X BGP AND MPLS Configuration Manual

JunosE 11.2.x BGP and MPLS Configuration Guide
Related Topics

S-VLAN Subinterface with an Untagged C-VLAN ID Overview

Related Topics

Multiple ATM Virtual Circuits over a Single Pseudowire Overview

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Examples: Ethernet Raw Mode Encapsulation for Martini Layer 2 Transport on page 553
mpls-relay
route interface
In previous releases, you could configure an S-VLAN subinterface with a C-VLAN ID in
the range 0–4095 or with the any (5001) keyword for the VLAN ID. The single- tagged
frames with a valid S-VLAN ID or untagged frames were ignored for the subinterface.
You can now configure an S-VLAN subinterface with a C-VLAN ID, the anyUntagged
(5003) keyword , when the C-VLAN is configured inside S-VLAN as part of a pseudowire.
As a result, both customer-tagged and untagged frames can be transported inside a
prescribed S-VLAN-tag over a single pseudowire.
Observe the following guidelines when you configure an S-VLAN subinterface with any
untagged VLAN, for which the C-VLAN ID 0 is reserved.
Only Ethertype 0x8100 is supported on an S-VLAN subinterface that is configured with
the anyUntagged C-VLAN ID. If you attempt to configure Ethertype 0x9100 and 0x8a88
on this S-VLAN subinterface, an error message is displayed.
The default Ethertype of an S-VLAN subinterface that is configured with the
anyUntagged C-VLAN id is set to 0x8100. For other VLAN subinterfaces, it is set to
0x9100.
You cannot configure an S-VLAN subinterface with an S-VLAN ID value and the C-VLAN
ID as anyUntagged if its Ethertype is 0x8100 and if any VLAN subinterface on the same
major VLAN is configured with a VLAN ID value. Similarly, you cannot configure a VLAN
subinterface with a VLAN ID value if any S-VLAN subinterface on the same major VLAN
is configured with the same S-VLAN ID value, C-VLAN ID as anyUntagged, and Ethertype
as 0x8100. If you attempt these procedures, an error message is displayed.
If you attempt to configure the Ethertype as 0x8100 on an S-VLAN subinterface, which
is configured with a valid S-VLAN ID value and C-VLAN ID as anyUntagged, and if any
VLAN subinterface is previously configured with a VLAN ID value on the same major
VLAN, an error message is displayed.
Examples: Configuring S-VLAN Subinterface with an Untagged C-VLAN ID on page 557
svlan id
In JunosE releases earlier than Release 10.2.x, ATM Martini circuit functionality was
supported on ERX14xx models, ERX7xx models, and the ERX310 router that enabled the
ATM cells that pertained to a particular ATM virtual circuit (VC) to be transported over
a single pseudowire. This behavior was achieved by emulating connectivity between two
ATM ports for a single virtual circuit. However, if you wanted to emulate the connectivity
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