NOTE: Static pseudowires for VPLS using an LSI is supported on MX series
routers and EX Series switches only. For M series and T series routers, a tunnel
services PIC is required.
If you issue a show vpls connections command, static neighbors are displayed with "SN"
next to their addresses in the command output.
Related
Documentation
Configuring VPLS Without a Tunnel Services PIC on page 1267•
Configuring VPLS Without a Tunnel Services PIC
VPLS normally uses a dynamic virtual tunnel logical interface on a Tunnel Services PIC
to model traffic from a remote site (a site on a remote PE router that is in a VPLS domain).
All traffic coming from a remote site is treated as coming in over the virtual port
representing this remote site, for the purposes of Ethernet flooding, forwarding, and
learning. An MPLS lookup based on the inner VPN label is done on a PE router. The label
is stripped and the Layer 2 Ethernet frame contained within is forwarded to a Tunnel
Services PIC. The PIC loops back the packet and then a lookup based on Ethernet MAC
addresses is completed. This approach requires that the router have a Tunnel Services
PIC and that the PE router complete two protocol lookups.
NOTE: In the VPLS documentation, the word router in terms such as PE router
is used to refer to any device that provides routing functions.
You can configure VPLS without a Tunnel Services PIC by configuring the
no-tunnel-services statement. This statement creates a label-switched interface (LSI)
to provide VPLS functionality. An LSI MPLS label is used as the inner label for VPLS. This
label maps to a VPLS routing instance. On the PE router, the LSI label is stripped and
then mapped to a logical LSI interface. The Layer 2 Ethernet frame is then forwarded
using the LSI interface to the correct VPLS routing instance.
By default, VPLS requires a Tunnel Services PIC. To configure VPLS on a router without
a Tunnel Services PIC and create an LSI, include the no-tunnel-services statement:
no-tunnel-services;
For a list of the hierarchy levels at which you can include this statement, see the summary
section for this statement.
To configure a VPLS routing instance on a router without a tunnel services PIC, include
the no-tunnel-services statement at the [edit routing-instances routing-instance-name
protocols vpls] hierarchy level. To configure static VPLS on a router without a tunnel
services PIC, include the no-tunnel-services statement at the [edit protocols vpls
static-vpls] hierarchy level.
1267Copyright © 2017, Juniper Networks, Inc.
Chapter 35: Configuring Virtual Private LAN Service
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