It's interesting I'm currently not able to reproduce it. If I delete now the redistribute command, the route is gone from L1 and L2. That's definitely not the behavior I had. I will try more tomorrow. Thank you best regards peter
________________________________ Von: Bryan Bartik [mailto:[email protected]] Gesendet: Donnerstag, 29. Oktober 2009 16:59 An: FUCHS Peter Cc: [email protected] Betreff: Re: [OSL | CCIE_SP] Volume 1 Section 6 Task 7 Peter, The summary should be advertised into L1 and L2, you only have it in level-2. Do a show isis database detail on R9...do you see the summary in L1 and L2 for the R9 LSP? For another example I have PE and P as L1L2 neighbors. PE1 has 192.168.20.0/24 and 192.168.21.0/24 and summarizes into 192.168.20.0/23 as follows: router isis summary-address 192.168.20.0 255.255.254.0 level-1-2 But if you look in the LSP, no summary is generated into level-1, only for level-2: PE1#sho isis database PE1.00-00 detail IS-IS Level-1 LSP PE1.00-00 LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL PE1.00-00 * 0x00000006 0xC4D0 870 0/0/0 Area Address: 49.0100 NLPID: 0xCC Hostname: PE1 IP Address: 10.1.1.1 Metric: 10 IP 192.168.0.0 255.255.255.252 Metric: 10 IP 10.1.1.1 255.255.255.255 Metric: 0 IP 192.168.20.0 255.255.255.0 Metric: 0 IP 192.168.21.0 255.255.255.0 Metric: 10 IS P1.00 IS-IS Level-2 LSP PE1.00-00 LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL PE1.00-00 * 0x0000000A 0xE1BC 896 0/0/0 Area Address: 49.0100 NLPID: 0xCC Hostname: PE1 IP Address: 10.1.1.1 Metric: 10 IS P1.00 Metric: 10 IP 10.1.1.1 255.255.255.255 Metric: 10 IP 192.168.0.0 255.255.255.252 Metric: 0 IP 192.168.20.0 255.255.254.0 PE1# It is my experience that the summary-address command accepts the level-1 argument anytime, but only summarizes into level-1 when the routes are redistributed. On Thu, Oct 29, 2009 at 7:04 AM, FUCHS Peter <[email protected]> wrote: Hi On this task we have to configure 2 Loopbacks and advertise a summary of them via ISIS. Why not just configure the summary address, the solution says a redistribute connected with a route map and the summary address is the right way. I have tried both ways and it seems that there is no difference between them. R9(config-router)#do sh run | be ^router isis router isis 1 net 49.0009.9999.9999.9999.00 metric-style wide summary-address 10.6.0.0 255.255.254.0 level-1-2 redistribute static ip passive-interface Loopback0 passive-interface Loopback1 passive-interface Loopback2 R2#sh ip route isis 200.0.0.0/32 is subnetted, 5 subnets i L2 200.0.0.9 [115/20] via 150.50.26.1, Serial0/1.26 i L1 200.0.0.4 [115/10] via 150.50.24.1, Serial0/1.24 i L1 200.0.0.5 [115/10] via 150.50.25.1, Serial0/1.25 i L2 200.0.0.6 [115/10] via 150.50.26.1, Serial0/1.26 i L2 192.6.6.0/24 [115/20] via 150.50.26.1, Serial0/1.26 10.0.0.0/23 is subnetted, 1 subnets i L2 10.6.0.0 [115/20] via 150.50.26.1, Serial0/1.26 i L2 192.7.7.0/24 [115/20] via 150.50.26.1, Serial0/1.26 150.50.0.0/16 is variably subnetted, 8 subnets, 3 masks i L1 150.50.56.0/24 [115/10] via 150.50.25.1, Serial0/1.25 i L2 150.50.69.0/30 [115/20] via 150.50.26.1, Serial0/1.26 i L2 150.50.69.2/32 [115/30] via 150.50.26.1, Serial0/1.26 i L2 150.50.86.0/24 [115/20] via 150.50.26.1, Serial0/1.26 R2# R2# R2#ping 10.6.1.6 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.6.1.6, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 36/44/52 ms R2#ping 10.6.0.6 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.6.0.6, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 20/92/300 ms R2# Best regards peter _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com -- Bryan Bartik CCIE #23707 (R&S), CCNP Sr. Support Engineer - IPexpert, Inc. URL: http://www.IPexpert.com
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
