Configuring VPLS Routing Instance and VPLS Interface Connectivity
You can configure the VPLS routing instance to take down or maintain its VPLS
connections depending on the status of the interfaces configured for the VPLS routing
instance. By default, the VPLS connection is taken down whenever a customer-facing
interface configured for the VPLS routing instance fails. This behavior can be explicitly
configured by specifying the ce option for the connectivity-type statement:
connectivity-type ce;
You can alternatively specify that the VPLS connection remain up so long as an Integrated
Routing and Bridging (IRB) interface is configured for the VPLS routing instance by
specifying the irb option for the connectivity-type statement:
connectivity-type irb;
To ensure that the VPLS connection remain up until explicitly taken down, specify the
permanent option for the connectivity-type statement:
connectivity-type permanent;
This option is reserved for use in configuring Layer 2 Wholesale subscriber networks. See
the Broadband Subscriber Management Solutions Guide for details about configuring a
Layer 2 Wholesale network.
You can include this statement at the following hierarchy levels:
•
[edit routing-instances routing-instance-name protocols vpls]
•
[edit logical-systems logical-system-name routing-instances routing-instance-name
protocols vpls]
NOTE: ACX Series routers do not support the [edit logical-systems] hierarchy.
ACX Series routers do not support irb interface in VPLS instance, therefore
connectivity-type irb for VPLS is not supported.
Configuring the VPLS Encapsulation Type
You can specify a VPLS encapsulation type for the pseudowires established between
VPLS neighbors. The encapsulation type is carried in the LDP-signaling messages
exchanged between VPLS neighbors when pseudowires are created. You might need to
alter the encapsulation type depending on what other vendors’ equipment is deployed
within your network.
VPLS effectively provides a bridge between Ethernet networks. As a consequence, only
two encapsulation types are available:
•
ethernet—Ethernet
•
ethernet-vlan—Ethernet virtual LAN (VLAN)
1249Copyright © 2017, Juniper Networks, Inc.
Chapter 35: Configuring Virtual Private LAN Service
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