Guidelines For H-Vpls On Acx Routers - Juniper ACX1000 Configuration Manual

ACX Series Universal Access Router Configuration Guide

Guidelines for H-VPLS on ACX Routers

Related
Documentation
802
An active and a standby pseudowire are set up between ACX and aggregation routers
to support redundancy for the control traffic.
PW terminates into the VPLS instance in the aggregation router. PWs from multiple
ACX routers are terminated to the same VPLS instance as all the subscribers across
all ACX boxes connected to a same aggregation router are in the same subnet.
VPLS instance in the aggregation router is connected to the L3VPN instance through
IRB interface which has IP address from the same subnet as the subscribers. Subscriber
management station that is controlling the subscribers belong to a particular customer
is connected to this Layer 3 VPN domain.
Keep the following points in mind while configuring H-VPLS on ACX routers:
Control traffic is limited to 1G or 10G bandwidth based on the logical tunnel (lt-)
interface limitation.
Multicast data delivery is based on PIM on the access network. Therefore, the
convergence time is directly related to the convergence time of the IGP protocol
configured on the access network.
Two versions of multicast solutions must be implemented in the provider network for
the end-to-end solution to work. Also, you must set up PIM- based solution on the
access network and MVPN-based solution on the aggregation or core network. This
topology is considered a configuration overhead.
IPv6 multicast and active-active redundancy models are not supported.
You can implement an IPTV framework without the MVPN and VPLS support on ACX
routers.
Multicast support using PIM-SM and IGMP is supported,
Unicast control traffic is restricted to the customer VPN domain.
Support for multiple subscribers to be on the same IP subnet is provided. Direct
communication between the subscribers at the ACX level is disabled.
IGMP snooping is supported to ensure that the multicast data is not forwarded to the
subscribers that are not registered for that data.
An IRB interface is used for only multicast data delivery from the default VRF context.
PIM Overview on page 672
Understanding IGMP on page 445
Layer 2 Bridge Domains on ACX Series Overview on page 755
Copyright © 2017, Juniper Networks, Inc.