H3C Technologies H3C SR8800 - Manual (Page 378)

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Step Command Remarks
4. Configure the router as a route
reflector and specify an IPv6
peer/peer group as a client.
peer { ipv6-group-name |
ipv6-address } reflect-client
Not configured by default.
5. Enable route reflection
between clients.
reflect between-clients
Optional.
Enabled by default.
6. Configure the cluster ID of the
route reflector.
reflector cluster-id cluster-id
Optional.
By default, a route reflector uses its
router ID as the cluster ID.
NOTE:
•
In general, since the route reflector forwards routing information between clients, you are not required
to make clients of a route reflector fully meshed. If clients are fully meshed, H3C recommends disabling
route reflection between clients to reduce routing costs.
• If a cluster has multiple route reflectors, you must specify the same cluster ID for these route reflectors to
avoid routing loops.
Configuring 6PE
IPv6 provider edge (6PE) is a transition technology with which Internet service providers (ISPs) can use
existing IPv4 backbone networks to provide access capability for sparsely populated IPv6 networks,
allowing customer edge (CE) routers in these isolated IPv6 networks to communicate with IPv4 PE routers.
Work mechanism of 6PE:
IPv6 routing information from users is converted into IPv6 routing information with labels and then is
flooded into IPv4 backbone networks of ISPs through BGP sessions. When IPv6 packets are forwarded,
they will be labeled when entering tunnels of backbone networks. The tunnels can be MPLS LSPs.
IGPs running on ISP networks can be OSPF or IS-IS. Static routing, IGP, or EBGP can be used between
CE and 6PE.
Figure 117 Network diagram for 6PE
NOTE:
The P (Provider) router in the above figure refers to a backbone router in the network of a service provider.
P is not directly connected with a CE and is required to have the basic MPLS capability.
When an ISP wants to utilize the existing IPv4/MPLS network to provide IPv6 traffic switching capability,
only the PE routers must be upgraded. Therefore, it is undoubtedly a high efficient solution. Furthermore,
the operation risk of the 6PE technology is very low.