[c-nsp] CLNS/IS-IS routes
Vincent De Keyzer
lamusiqueduhasard at gmail.com
Mon Jan 14 05:30:45 EST 2013
Hi Adam,
thanks for the quick answer.
About the "ES" role of the server: Alcatel confirmed that their servers
indeed need to be configured as ISes (which I agree sounds strange).
By "each of the Algiers", you mean that I should see "rtrnal01" more than
once in the list below, like "rtrmar01" and "rtralg01" do?
ORA1-R26-01#sh isis database
IS-IS Level-1 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
rtrmar01.00-00 0x00050D9D 0xB621 839 0/0/0
rtrmar01.02-00 0x000482EA 0x1347 805 0/0/0
rtralg01.00-00 0x0002B099 0x232F 907 0/0/0
rtralg01.01-00 0x0002A7B6 0xD280 1086 0/0/0
rtralg01.02-00 0x0002A82C 0x252D 581 0/0/0
rtrann01.00-00 0x00032484 0x422E 424 0/0/0
rtrann01.02-00 0x0003231C 0x804B 467 0/0/0
rtrmpf01.00-00 0x0003FB69 0xFBFA 959 0/0/0
rtrnal01.00-00 0x0003213A 0x04E1 1073 0/0/0
rtrnoc01.00-00 0x0004EEA4 0xDB58 765 0/0/0
rtrora01.00-00 * 0x0003B10D 0x2230 1105 0/0/0
(...)
Verbose detail :
rtrnal01.00-00 0x0003213A 0x04E1 897 0/0/0
Area Address: 39.250f.8000.0000.0000.0001.0001
Metric: 10 IS rtrann01.00
Metric: 10 IS rtrora01.00
Metric: 0 ES rtrnal01
So this is my issue: rtrnal01 is not sending the pseudonode LSP for the LAN
behind Et0/1?
How do I fix this?
Vincent
On 14 January 2013 10:24, Adam Vitkovsky <adam.vitkovsky at swan.sk> wrote:
> >But Oran does not seem receive from Algiers any of its 6 CLNS neighbors
> (and that includes the server):
> I'd check the ISIS database on Oran to see whether it received an LSP from
> each of the Algiers.
> Than you can check for the verbose output to see whether the particular LSP
> contains all interfaces.
>
> Also you mentioned servers -shouldn't those run ES-IS with the routers?
>
> adam
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Vincent De Keyzer
> Sent: Monday, January 14, 2013 9:32 AM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] CLNS/IS-IS routes
>
> Hello all,
>
>
>
> We are currently troubleshooting an old, badly-documented, non-supported,
> CLNS/IS-IS network (for management of Alcatel NEs).
>
>
>
> One of the issues we have identified is IS-IS routes not being announced by
> one router to another (this might or might not explain the overall problem
> of no connectivity, but let's go step by step).
>
>
>
> The two routers are ALGiers and ORAn, directly connected with a serial E1
> link.
>
>
>
> The adjacency looks good to me. Algiers correctly sees Oran (and has a CLNS
> neighborship with the server we are interested in):
>
>
>
> ALG2-R26-01#sh clns ne
>
>
>
> System Id Interface SNPA State Holdtime Type
> Protocol
>
> 0007.729E.FFEE Et0/1 0007.729e.ffee Up 92 L1
> IS-IS
>
> 0007.72A2.FEA6 Et0/1 0007.72a2.fea6 Up 91 L1
> IS-IS
>
> 0020.602B.CBB4 Et0/1 0020.602b.cbb4 Up 95 L1
> IS-IS
>
> 0020.6013.2DD2 Et0/1 0020.604a.972e Up 92 L1
> IS-IS
>
> --> 0030.6E4B.455C Et0/1 0011.85c7.3ec0 Up 97 L1
> IS-IS <----- Server
>
> 0030.6E4B.47DB Et0/1 0012.799d.51a6 Up 95 L1
> IS-IS
>
> rtrnoc01 Et0/1 0014.1ce6.60fd Up 9 L1L2
> IS-IS
>
> rtrann01 Se0/2 *PPP* Up 24 L1L2
> IS-IS
>
> --> rtrora01 Se0/3 *PPP* Up 26 L1L2
> IS-IS <----- Oran router
>
> 1880.F524.8FF0 Et0/1 1880.f52d.958e Init 48 L1
> IS-IS
>
> ALG2-R26-01#
>
>
>
> Oran sees Algiers:
>
>
>
> ORA1-R26-01#sh clns ne
>
>
>
> System Id Interface SNPA State Holdtime Type
> Protocol
>
> 0020.6013.37F2 Fa0/1 0020.6013.37f2 Up 96 L1
> IS-IS
>
> --> rtrnal01 Se0/1/1:0 *PPP* Up 24 L1L2
> IS-IS <----- Algiers router
>
> rtralg01 Se0/1/0:0 *PPP* Up 28 L1L2
> IS-IS
>
> 0020.602B.CF8A Fa0/1 0020.602b.cf8a Up 46 L1
> IS-IS
>
> 0080.9F20.0931 Fa0/1 0080.9f20.03a3 Up 93 L1
> IS-IS
>
> ORA1-R26-01#
>
>
>
> But Oran does not seem receive from Algiers any of its 6 CLNS neighbors
> (and
> that includes the server):
>
>
>
> ORA1-R26-01#sh isis route | i 455C
>
> ORA1-R26-01#
>
>
>
> (You might have noticed that the CLNS names are not consistent with the
> hostnames, but CDP does confirm the situation
>
>
>
> ALG2-R26-01#sh cdp ne
>
>
>
> Device ID Local Intrfce Holdtme Capability Platform
> Port ID
>
> ORA1-R26-01 Ser 0/3 163 R S I Cisco
> 2801Ser 0/1/1:0
>
> (...)
>
> )
>
>
> All seven routers in the network have already been rebooted.
>
>
>
> Any idea why this inconsistency, or on how to troubleshoot further?
>
>
>
> Thanks,
>
>
>
> Vincent
> _______________________________________________
> cisco-nsp mailing list cisco-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
>
>
More information about the cisco-nsp
mailing list