Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 492
Configuring Multi-Topology IS-IS MT IS-IS, IS-IS: Level-1 LSPs PSNPs sent/rcvd : 0/0
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Generate narrow metrics: level-1-2 Accept narrow metrics: level-1-2 Generate wide metrics: none Accept wide metrics: none Dell# To view IS-IS protocol statistics, use the show isis traffic command in EXEC Privilege mode. Dell#show isis traffic IS-IS: Level-1 Hellos (sent/rcvd) : 4272/1538 IS-IS: Level-2 Hellos (sent/rcvd) : 4272/1538 IS-IS: PTP Hellos (sent/rcvd) : 0/0 IS-IS: Level-1 LSPs sourced (new/refresh) : 0/0 IS-IS: Level-2 LSPs sourced (new/refresh) : 0/0 IS-IS: Level-1 LSPs flooded (sent/rcvd) : 32/19 IS-IS: Level-2 LSPs flooded (sent/rcvd) : 32/17 IS-IS: Level-1 LSPs CSNPs (sent/rcvd) : 1538/0 IS-IS: Level-2 LSPs CSNPs (sent/rcvd) : 1534/0 IS-IS: Level-1 LSPs PSNPs (sent/rcvd) : 0/0 IS-IS: Level-2 LSPs PSNPs (sent/rcvd) : 0/0 IS-IS: Level-1 DR Elections : 2 IS-IS: Level-2 DR Elections : 2 IS-IS: Level-1 SPF Calculations : 29 IS-IS: Level-2 SPF Calculations : 29 IS-IS: LSP checksum errors received : 0 IS-IS: LSP authentication failures : 0 Dell# You can assign more NET addresses, but the System ID portion of the NET address must remain the same. The system supports up to six area addresses. Some address considerations are: • In order to be neighbors, configure Level 1 routers with at least one common area address. • A Level 2 router becomes a neighbor with another Level 2 router regardless of the area address configured. However, if the area addresses are different, the link between the Level 2 routers is only at Level 2. Configuring Multi-Topology IS-IS (MT IS-IS) To configure multi-topology IS-IS (MT IS-IS), use the following commands. 1 Enable multi-topology IS-IS for IPv6. ROUTER ISIS AF IPV6 mode multi-topology [transition] Enter the keyword transition to allow an IS-IS IPv6 user to continue to use single-topology mode while upgrading to multi-topology mode. After every router has been configured with the transition keyword, and all the routers are in MT IS-IS IPv6 mode, you can remove the transition keyword on each router. NOTE: When you do not enable transition mode, you do not have IPv6 connectivity between routers operating in single-topology mode and routers operating in multi-topology mode. 2 Exclude this router from other router's SPF calculations. ROUTER ISIS AF IPV6 mode set-overload-bit 3 Set the minimum interval between SPF calculations. ROUTER ISIS AF IPV6 mode spf-interval [level-l | level-2 | interval] [initial_wait_interval [second_wait_interval]] Intermediate System to Intermediate System 492
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