I believe l1/l2 router will advertise a default route only when it connects two different areas as defined by the net id (ie 49.xxxx.)by default -are the r1 and r5 routers connected to different area than the r2 is a part of? You should be able to overcome this behavior by using the att bit control feature -where you can set the att bit based on the match in the route-map In that route-map you'll match for the net id (clns address) of the upstream router/s Adam Vitkovsky
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Sunday, December 20, 2009 4:46 PM To: [email protected] Subject: CCIE_SP Digest, Vol 33, Issue 23 Send CCIE_SP mailing list submissions to [email protected] To subscribe or unsubscribe via the World Wide Web, visit http://onlinestudylist.com/mailman/listinfo/ccie_sp or, via email, send a message with subject or body 'help' to [email protected] You can reach the person managing the list at [email protected] When replying, please edit your Subject line so it is more specific than "Re: Contents of CCIE_SP digest..." Today's Topics: 1. Re: Volume 2 section 1 Multiprotocol Challange lab ISIS task 2.2 (Thomas J. Loran) ---------------------------------------------------------------------- Message: 1 Date: Sun, 20 Dec 2009 15:45:48 +0000 From: "Thomas J. Loran" <[email protected]> Subject: Re: [OSL | CCIE_SP] Volume 2 section 1 Multiprotocol Challange lab ISIS task 2.2 To: Rick Mur <[email protected]> Cc: Marko, "[email protected]" <[email protected]> Message-ID: <[email protected]> Content-Type: text/plain; charset="us-ascii" Yes with the is-type level-1 command See the whole isis database and notice no L2 database. I did a R1, R2, R5 reload and it did not fix the issue R2#sh isis database detail IS-IS Level-1 Link State Database: LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL R1.00-00 0x00000015 0x737B 918 0/0/0 Auth: Length: 9 Area Address: 49.1155 NLPID: 0x81 0xCC Hostname: R1 IP Address: 125.125.125.1 Metric: 2 IP 172.16.21.0/24 Metric: 2 IP 125.125.125.1/32 Metric: 2 IS-Extended R2.00 Metric: 0 ES R1 R2.00-00 * 0x0000000F 0x457A 1022 0/0/0 Auth: Length: 9 Area Address: 49.1155 NLPID: 0xCC Hostname: R2 IP Address: 125.125.125.2 Metric: 10 IP 172.16.52.0/24 Metric: 10 IP 172.16.21.0/24 Metric: 0 IP 125.125.125.2/32 Metric: 10 IS-Extended R1.00 Metric: 10 IS-Extended R5.03 R5.00-00 0x00000015 0xBBF9 1019 0/0/0 Auth: Length: 9 Area Address: 49.1155 NLPID: 0x81 0xCC Hostname: R5 IP Address: 125.125.125.5 Metric: 2 IP 172.16.52.0/24 Metric: 2 IP 125.125.125.5/32 Metric: 2 IS-Extended R5.03 Metric: 0 ES R5 R5.03-00 0x00000001 0x3976 1019 0/0/0 Auth: Length: 9 Metric: 0 IS-Extended R5.00 Metric: 0 IS-Extended R2.00 From: Rick Mur [mailto:[email protected]] Sent: Sunday, December 20, 2009 8:42 AM To: Thomas J. Loran Cc: [email protected]; Marko Milivojevic Subject: Re: Volume 2 section 1 Multiprotocol Challange lab ISIS task 2.2 Is R2 a full L1 router? L1/L2 routers do not receive the default, only pure L1 ones. Otherwise try it with a different version, I know the proctorlabs 7200s have a bit old release and there are some strange bugs in it. Maybe this is one of them. For the workbook lab it doesn't matter, technological you are correct :-) Try it with Dynamips on the latest 12.2S release. -- Regards, Rick Mur CCIE2 #21946 (R&S / Service Provider) Sr. Support Engineer - IPexpert, Inc. URL: http://www.IPexpert.com On 20 dec 2009, at 16:23, Thomas J. Loran wrote: I should have mentioned that this was before route-leaking From: Rick Mur [mailto:[email protected]] Sent: Sunday, December 20, 2009 8:20 AM To: Thomas J. Loran Cc: [email protected]<mailto:[email protected]>; Marko Milivojevic Subject: Re: Volume 2 section 1 Multiprotocol Challange lab ISIS task 2.2 Once you enable route leaking, in some cases the default will not be advertised anymore. I believe this has to do with the S train specifically. Try and remove the route-leaking and see if you then receive a default on R2. -- Regards, Rick Mur CCIE2 #21946 (R&S / Service Provider) Sr. Support Engineer - IPexpert, Inc. URL: http://www.IPexpert.com On 19 dec 2009, at 22:43, Thomas J. Loran wrote: In the Vol II section 1 multiprotocol Challenge A task 2.2 we have to leak additional routes into R2 so everything stays connected if one of the link goes down. I understand that. I know that I need /32 for routes later on. What I do not understand is why R1 and R5, the L1/L2 routers do not leak a default route into R2. I thought the L1/L2 routers were supposed to set the ATT bit so R2 has a way out of the network R2# IS-IS Level-1 Link State Database: LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL R1.00-00 0x00000031 0x6E4B 1058 0/0/0 R2.00-00 * 0x00000032 0x4661 977 0/0/0 R5.00-00 0x00000035 0xAECD 980 0/0/0 R5.03-00 0x00000008 0x2B7D 960 0/0/0 R1#sh isi database IS-IS Level-1 Link State Database: LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL R1.00-00 * 0x00000031 0x6E4B 891 0/0/0 R2.00-00 0x00000032 0x4661 806 0/0/0 R5.00-00 0x00000035 0xAECD 809 0/0/0 R5.03-00 0x00000008 0x2B7D 790 0/0/0 IS-IS Level-2 Link State Database: LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL R1.00-00 * 0x0000000B 0x0EBF 886 0/0/0 R5.00-00 0x0000000B 0x1228 518 0/0/0 R1# R5#sh is database IS-IS Level-1 Link State Database: LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL R1.00-00 0x00000031 0x6E4B 844 0/0/0 R2.00-00 0x00000032 0x4661 763 0/0/0 R5.00-00 * 0x00000035 0xAECD 769 0/0/0 R5.03-00 * 0x00000008 0x2B7D 750 0/0/0 IS-IS Level-2 Link State Database: LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL R1.00-00 0x0000000B 0x0EBF 840 0/0/0 R5.00-00 * 0x0000000B 0x1228 476 0/0/0 I do not see any ATT bit being set and L2 is definitely an L1 only router and R! and R5 are definitely L1/L2 routers. In Doyles' Volume 1 Routing book page 580 he discusses this and suggests turning on CLNS routing on both the interface and the routers (default) I did that and am still not getting the ATT bit set. What am I doing wrong? AM I wrong to look for the ATT bit / default route in this scenario? All three routers are 7200 running version 12.2(18)S2 thanks Thomas Loran CCIE #7113 -------------- next part -------------- An HTML attachment was scrubbed... URL: http://onlinestudylist.com/pipermail/ccie_sp/attachments/20091220/46d8af68/attachment.htm End of CCIE_SP Digest, Vol 33, Issue 23 *************************************** _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
