Provider Tunnel Support - Alcatel-Lucent 7750 SR Manual

Provider Tunnel Support

The following provider tunnels features are supported:
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Migration from Existing Rosen Implementation
The existing Rosen implementation is compatible to provide an easy migration path.
The following migration procedure are supported:
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VRF Route Import Extended Community
VRF route import is an IP address-specific extended community, of an extended type, and is
transitive across AS boundaries (RFC 4360, BGP Extended Communities Attribute.
To support MVPN, in addition to the import/export route target extended communities used by the
unicast routing, each VRF on a PE must have an import route target extended community that
controls imports of C-multicast routes into a particular VRF.
The c-multicast import RT uniquely identifies a VRF, and is constructed as follows:
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A PE that has sites of a given MVPN connected to it communicates the value of the c-multicast
import RT associated with the VRF of that MVPN on the PE to all other PEs that have sites of that
MVPN. To accomplish this, a PE that originates a (unicast) route to VPN-IP addresses includes in
7750 SR OS Services Guide
• PIM ASM inclusive provider tunnel
• PIM SSM inclusive provider tunnel (only supported when auto-discovery is enabled)
• PIM SSM selective provider tunnel
Upgrade all the PE nodes that need to support MVPN to the newer release.
The old configuration will be converted automatically to the new style.
Node by node, MCAST-VPN address-family for BGP is enabled. Enable auto-discovery
using BGP.
Change PE-to-PE signaling to BGP.
The Global Administrator field of the c-multicast import RT must be set to an IP address
of the PE. This address should be common for all the VRFs on the PE (this address may
be the PE's loopback address).
The Local Administrator field of the c-multicast import RT associated with a given VRF
contains a 2 octets long number that uniquely identifies that VRF within the PE that
contains the VRF.
Virtual Private Routed Network Services
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