Nortel Optical Multiservice Edge 6130, Planning Manual, Page: 242 / 292

10-56 Appendix A: Data communications planning
Optical Multiservice Edge 6130 NT6Q92MA Rel 1.0 Iss 1 Standard September 2006
DCN example 7 - Using dual OM4000 GNEs with GRE tunnels through
OM4000 network to reach remote OME6130 network elements in SNCP
ring with generic SDH network elements.
In this example (see Figure 10-15 on page 10-57 and Figure 10-16 on page
10-58 ), similar to previous configuration, but with multiple gateway locations
with GNEs and routers to maximize the resilience of this solution.
The ABR on which the IP over OSI GRE tunnels terminate can only be a Cisco
router that supports ISO CLNS, with an IOS which has the “IP over CLNS
tunnel (CTunnel)” using
GRE encapsulation feature. Some older versions of
IOS support IP over OSI tunnels using Cisco proprietary encapsulation which
is not suitable in this application.
Note: If the Ethernet IP of the OME6130 NEs are provisioned with
different subnets, then dynamic routing (i.e. OSPF or iISIS) or static
routing is required between the OME6130 NEs and the DCN routers.
DCN provisioning details
Table 10-18 on page 10-58 and Table 10-19 on page 10-60 detail the DCN
parameters for the DCN example 7 configuration.
Note: For parameters not listed, use the default settings.