Command Manual – IPv6 RoutingH3C S7500E Series Ethernet Switches Chapter 4 IPv6 IS-IS Configuration Commands4-8allow-ibgp: Allows the redistribution of IBGP routes. This keyword is optional when theprotocol is bgp4+.DescriptionUse the ipv6 import-route command to enable IPv6 IS-IS to redistribute routes fromanother routing protocol.Use the undo ipv6 import-route command to disable route redistribution.Route redistribution is disabled by default.If no level is specified, the routes are imported to Level-2 routing table by default.IPv6 IS-IS considers redistributed routes as routes to destinations outside the localrouting domain.You can specify a cost and a level for redistributed routes.Caution:Using the import-route bgp4+ allow-ibgp command will redistribute both EBGP andIBGP routes. The redistributed IBGP routes may cause routing loops. Therefore, becautious with this command.Examples# Configure IPv6–IS-IS to redistribute static routes and sets the cost 15 for them. system-view[Sysname] isis[Sysname-isis-1]ipv6 import-route static cost 154.1.7 ipv6 import-route isisv6 level-2 into level-1Syntaxipv6 import-route isisv6 level-2 into level-1 [ filter-policy { acl6-number |ipv6-prefix ipv6-prefix-name | route-policy route-policy-name } | tag tag ]*undo ipv6 import-route isisv6 level-2 into level-1ViewIS-IS view