+++++++++++++++++++++++++ OSPF +++++++++++++++++++++++++ ***************************** IP-FRR with BFD ***************************** ===================================== 1. Configure the Base Topology ===================================== ------- CSR-1 ------- hostname CSR1 ! Interface Loopback 0 ip address 1.1.1.1 255.255.255.255 ! Interface Gig1 ip address 192.1.12.1 255.255.255.0 ip ospf cost 10 no shut ! Interface Gig2 ip address 192.1.13.1 255.255.255.0 ip ospf cost 20 no shut ! router ospf 1 router-id 0.0.0.1 network 192.1.12.0 0.0.0.255 area 0 network 192.1.13.0 0.0.0.255 area 0 network 1.0.0.0 0.255.255.255 area 0 ------- CSR-2 ------- hostname CSR2 ! Interface Loopback 0 ip address 2.2.2.2 255.255.255.255 ! Interface Gig1 ip address 192.1.12.2 255.255.255.0 ip ospf cost 10 no shut ! Interface Gig2 ip address 192.1.24.2 255.255.255.0 ip ospf cost 10 no shut ! router ospf 1 router-id 0.0.0.2 network 192.1.12.0 0.0.0.255 area 0 network 192.1.24.0 0.0.0.255 area 0 network 2.0.0.0 0.255.255.255 area 0 ------- CSR-3 ------- hostname CSR3 ! Interface Loopback 0 ip address 3.3.3.3 255.255.255.255 ! Interface Gig1 ip address 192.1.13.3 255.255.255.0 ip ospf cost 20 no shut ! Interface Gig2 ip address 192.1.34.3 255.255.255.0 ip ospf cost 20 no shut ! router ospf 1 router-id 0.0.0.3 network 192.1.13.0 0.0.0.255 area 0 network 192.1.34.0 0.0.0.255 area 0 network 3.0.0.0 0.255.255.255 area 0 ------- CSR-4 ------- hostname CSR4 ! Interface Loopback 0 ip address 4.4.4.4 255.255.255.255 ! Interface Gig1 ip address 192.1.24.4 255.255.255.0 ip ospf cost 10 no shut ! Interface Gig2 ip address 192.1.34.4 255.255.255.0 ip ospf cost 20 no shut ! router ospf 1 router-id 0.0.0.4 network 192.1.24.0 0.0.0.255 area 0 network 192.1.34.0 0.0.0.255 area 0 network 4.0.0.0 0.255.255.255 area 0 Verification: ---------------- ----- R1 ----- CSR1#sh ip route 4.4.4.4 Routing entry for 4.4.4.4/32 Known via "ospf 1", distance 110, metric 21, type intra area Last update from 192.1.12.2 on GigabitEthernet1, 00:00:15 ago Routing Descriptor Blocks: * 192.1.12.2, from 0.0.0.4, 00:00:15 ago, via GigabitEthernet1 Route metric is 21, traffic share count is 1 ===================================== 2. Configure BFD ===================================== ------- CSR-1 ------- Interface Gig1 bfd interval 300 min_rx 300 multiplier 3 ! Interface Gig2 bfd interval 300 min_rx 300 multiplier 3 ! router ospf 1 bfd all-interfaces ------- CSR-2 ------- Interface Gig1 bfd interval 300 min_rx 300 multiplier 3 ! Interface Gig2 bfd interval 300 min_rx 300 multiplier 3 ! router ospf 1 bfd all-interfaces ------- CSR-3 ------- Interface Gig1 bfd interval 300 min_rx 300 multiplier 3 ! Interface Gig2 bfd interval 300 min_rx 300 multiplier 3 ! router ospf 1 bfd all-interfaces ------- CSR-4 ------- Interface Gig1 bfd interval 300 min_rx 300 multiplier 3 ! Interface Gig2 bfd interval 300 min_rx 300 multiplier 3 ! router ospf 1 bfd all-interfaces ===================================== 3. Configure FRR for all routers ===================================== ------- CSR-1 ------- router ospf 1 fast-reroute per-prefix enable area 0 prefix-priority low ------- CSR-2 ------- router ospf 1 fast-reroute per-prefix enable area 0 prefix-priority low ------- CSR-3 ------- router ospf 1 fast-reroute per-prefix enable area 0 prefix-priority low ------- CSR-4 ------- router ospf 1 fast-reroute per-prefix enable area 0 prefix-priority low Verification: -------------- CSR1(config-router)#do sh ip route 4.4.4.4 Routing entry for 4.4.4.4/32 Known via "ospf 1", distance 110, metric 21, type intra area Last update from 192.1.12.2 on GigabitEthernet1, 00:01:11 ago Routing Descriptor Blocks: * 192.1.12.2, from 0.0.0.4, 00:01:11 ago, via GigabitEthernet1 Route metric is 21, traffic share count is 1 Repair Path: 192.1.13.3, via GigabitEthernet2 +++++++++++++++++++++++++ IS-IS +++++++++++++++++++++++++ ********************************************* Lab 1 - Configuring a Multi-Area Topology ********************************************* ===================================== 1. Configure Area 49.0010 ===================================== ------- R1 ------- router isis net 49.0010.0000.0000.0001.00 ! Interface E0/0 ip router isis ! Interface Loopback0 ip router isis ! Interface Loopback1 ip router isis ! Interface Loopback2 ip router isis ! Interface Loopback3 ip router isis ! Interface Loopback4 ip router isis ------- R2 ------- router isis net 49.0010.0000.0000.0002.00 ! Interface E0/0 ip router isis ! Interface Loopback0 ip router isis ------- R3 ------- router isis net 49.0010.0000.0000.0003.00 ! Interface E0/0 ip router isis ! Interface E0/1 ip router isis ! Interface Loopback0 ip router isis ------- R4 ------- router isis net 49.0010.0000.0000.0004.00 ! Interface E0/0 ip router isis ! Interface E0/1 ip router isis ! Interface E0/2 ip router isis ! Interface Loopback0 ip router isis ------- R5 ------- router isis net 49.0010.0000.0000.0005.00 ! Interface E0/0 ip router isis ! Interface E0/1 ip router isis ! Interface Loopback0 ip router isis ------- R6 ------- router isis net 49.0010.0000.0000.0006.00 ! Interface E0/0 ip router isis ! Interface E0/1 ip router isis ! Interface E0/2 ip router isis ! Interface Loopback0 ip router isis ===================================== 2. Configure Area 49.0020 ===================================== ------- R7 ------- router isis net 49.0020.0000.0000.0007.00 ! Interface E0/0 ip router isis ! Interface E0/1 ip router isis ! Interface E0/2 ip router isis ! Interface Loopback0 ip router isis ------- R8 ------- router isis net 49.0020.0000.0000.0008.00 ! Interface E0/0 ip router isis ! Interface Loopback0 ip router isis ===================================== 3. Configure Area 49.0030 ===================================== ------- R9 ------- router isis net 49.0030.0000.0000.0009.00 ! Interface E0/0 ip router isis ! Interface E0/1 ip router isis ! Interface Loopback0 ip router isis ------- R10 ------- router isis net 49.0030.0000.0000.000A.00 ! Interface E0/0 ip router isis ! Interface E0/1 ip router isis ! Interface Loopback0 ip router isis ===================================== 4. Configure Area 49.0040 ===================================== ------- R11 ------- router isis net 49.0040.0000.0000.000B.00 ! Interface E0/0 ip router isis ! Interface E0/1 ip router isis ! Interface Loopback0 ip router isis ------- R12 ------- router isis net 49.0040.0000.0000.000C.00 ! Interface E0/0 ip router isis ! Interface Loopback0 ip router isis ********************************************* Lab 2 - Configuring a router as a DIS ********************************************* ========================================================== 1. Configure R2 as the DIS for 192.1.100.0/24 segment ========================================================== ------- R2 ------- Interface E0/0 isis priority 70 Note: Default = 63 [0-127] **************************************************** Lab 3 - Configuring Area 49.0010 as Level-1 Area **************************************************** ========================================================== 1. Configure 49.0010 as a Level-1 area only ========================================================== ------- R1 ------- router isis is-type level-1 ------- R2 ------- router isis is-type level-1 ------- R3 ------- router isis is-type level-1 ------- R4 ------- router isis is-type level-1 ------- R4 ------- router isis is-type level-1 **************************************************** Lab 4 - Configuring Area 49.0020 as Level-1 Area **************************************************** ========================================================== 1. Configure 49.0020 as a Level-1 area only ========================================================== ------- R8 ------- router isis is-type level-1 **************************************************** Lab 5 - Configuring Area 49.0040 as Level-1 Area **************************************************** ========================================================== 1. Configure 49.0040 as a Level-1 area only ========================================================== ------- R12 ------- router isis is-type level-1 ********************************************************* Lab 6 - Configuring Area 49.0030 as a Pure Transit Area ********************************************************* ========================================================== 1. Configure 49.0030 as a Level-2 area only ========================================================== ------- R9 ------- router isis is-type level-2 ------- R10 ------- router isis is-type level-2 ********************************************************* Lab 7 - Configuring IS-IS Metrics ********************************************************* ========================================================== 1. Configure the metric between R4 and R6 as 50 ========================================================== ------- R4 ------- Interface E0/2 isis metric 50 ------- R6 ------- Interface E0/0 isis metric 50 ********************************************************* Lab 8 - Configuring Metric-Style ********************************************************* ========================================================== 1. Configure the Metric Style as Wide ========================================================== ------- R1 ------- router isis metric-style wide ------- R2 ------- router isis metric-style wide ------- R3 ------- router isis metric-style wide ------- R4 ------- router isis metric-style wide ------- R5 ------- router isis metric-style wide ------- R6 ------- router isis metric-style wide ------- R7 ------- router isis metric-style wide ------- R8 ------- router isis metric-style wide ------- R9 ------- router isis metric-style wide ------- R10 ------- router isis metric-style wide ------- R11 ------- router isis metric-style wide ------- R12 ------- router isis metric-style wide ********************************************************* Lab 9 - Configuring Hello & Dead Intervals ********************************************************* ============================================================ 1. Configure the Hello and Dead Intervals similar to EIGRP ============================================================ ------- R5 ------- Interface E0/1 isis hello-interval 5 isis hello-multiplier 3 ------- R6 ------- Interface E0/1 isis hello-interval 5 isis hello-multiplier 3 ********************************************************* Lab 10 - Configuring ISIS Authentication ********************************************************* ============================================================ 1. Configure Authentication between R1, R2 & R3 ============================================================ ------- R1 ------- key chain ABC key 1 key-string Cisco@123 ! Interface E0/0 isis authentication mode md5 isis authentication key-chain ABC ------- R2 ------- key chain ABC key 1 key-string Cisco@123 ! Interface E0/0 isis authentication mode md5 isis authentication key-chain ABC ------- R3 ------- key chain ABC key 1 key-string Cisco@123 ! Interface E0/0 isis authentication mode md5 isis authentication key-chain ABC