Netgear XCM8806 Chassis User Manual - Page 652

NETGEAR 8800 User Manual Note: IPv6 ECMP functionality is available only on the platforms listed for this feature in the license tables in Appendix A, XCM8800 Software Licenses. The following limitations apply when configuring route sharing: • The current kernel does not support IPv6 ECMP. As a result this feature is supported only in hardware (fast path) and not supported in slow path. Due to the kernel limitations, it is preferred that the neighbor cache is added as a static entry. Using route sharing makes router troubleshooting more difficult because of the complexity in predicting the path over which the traffic will travel. To enable route sharing, use the command: enable iproute ipv6 sharing To view the route sharing configuration setting, use the command: show ipconfig ipv6 {vlan | tunnel } To disable route sharing, use the command: disable iproute ipv6 sharing Note: IPV6 ECMP forwarding happens only if next hops are resolved and updated in the neighbor discovery cache. Configuring Route Compression XCM8800 supports route optimization via route compression to reduce the number of routes to be installed in hardware. This helps with route optimization and scaling. This feature allows you to install only less specific routes in the table when overlapping routes with the same nexthop exist. For detailed information about route compression, see Hardware Routing Table Management on page 604. To enable this feature, use the command: enable iproute ipv6 compression {vr } To disable this feature, use the command: disable iproute ipv6 compression {vr } Hardware Forwarding Behavior NETGEAR 8800 supports IPv6 unicast forwarding and IPv6 tunneling. 652 | Chapter 21. IPv6 Unicast Routing