Re: [f-nsp] CAM IPv6 partition warning even if cam partition not full
Andreas Schlee <[email protected]> Tue, 2 Oct 2018 09:06:24 +0000
| Newsgroups | gmane.network.nsp.foundry |
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| Message-ID | <BN6PR02MB248490C1A422DFE2850E17B995E80@BN6PR02MB2484.namprd02.prod.outlook.com> |
>show def val | in ipv6 ipv6-cache 131072 1884160 131072 131072 131072 Yes ipv6-route 131072 1884160 131072 131072 131072 Yes ipv6-mcast-cam 2048 16384 2048 2048 2048 No ipv6-vrf-route 1024 98304 1024 1024 1024 Yes ipv6-receive-cam 8 8192 8 8 8 No np-openflow-flow-entries : layer3ipv6 1 0 65536 0 No np-openflow-flow-entries : layer3ipv6 2 0 65536 0 No np-openflow-flow-entries : layer3ipv6 3 0 65536 0 No np-openflow-flow-entries : layer3ipv6 4 0 65536 0 No np-openflow-flow-entries : layer3ipv6 5 0 65536 0 No np-openflow-flow-entries : layer3ipv6 6 0 65536 0 No np-openflow-flow-entries : layer3ipv6 7 0 65536 0 No np-openflow-flow-entries : layer3ipv6 8 0 65536 0 No np-openflow-flow-entries : layer23ipv6 1 0 65536 0 No np-openflow-flow-entries : layer23ipv6 2 0 65536 0 No np-openflow-flow-entries : layer23ipv6 3 0 65536 0 No np-openflow-flow-entries : layer23ipv6 4 0 65536 0 No np-openflow-flow-entries : layer23ipv6 5 0 65536 0 No np-openflow-flow-entries : layer23ipv6 6 0 65536 0 No np-openflow-flow-entries : layer23ipv6 7 0 65536 0 No np-openflow-flow-entries : layer23ipv6 8 0 65536 0 No ________________________________________ Von: foundry-nsp <[email protected]> im Auftrag von Eldon Koyle <[email protected]> Gesendet: Dienstag, 2. Oktober 2018 07:28:00 An: foundry-nsp Betreff: Re: [f-nsp] CAM IPv6 partition warning even if cam partition not full Can you check the output of: show default values | inc ipv6 -- Eldon On Sun, Sep 30, 2018, 08:32 Dennis op de Weegh <[email protected]<mailto:[email protected]>> wrote: Hi Andreas, We have for IPv6 system-max: system-max ipv6-cache 60000 system-max ipv6-route 60000 Kind regards/Met vriendelijke groet, Dennis op de Weegh Bitency Hoge Ham 24 5104JG Dongen Kvk nummer: 20144338 BTW nummer: NL213538519B01 W: www.bitency.nl<http://www.bitency.nl> E: [email protected]<mailto:[email protected]> T: +31 (0)162 714066 -----Oorspronkelijk bericht----- Van: Andreas Schlee <[email protected]<mailto:[email protected]>> Verzonden: zondag 30 september 2018 16:23 Aan: Dennis op de Weegh <[email protected]<mailto:[email protected]>>; [email protected]<mailto:[email protected]> Onderwerp: AW: CAM IPv6 partition warning even if cam partition not full Hello Dennis, CAM partitioning profile is ipv4-ipv6-2, all modules are BR-MLX-10Gx4-X We only get those messages from module 3, not from the other one. >show run | in system-max system-max vlan 2000 system-max spanning-tree 1 system-max ip-cache 1048576 system-max ip-route 1048576 system-max virtual-interface 1024 What else do you need from the config? Best regards, Andreas Schlee ________________________________________ Von: Dennis op de Weegh <[email protected]<mailto:[email protected]>> Gesendet: Sonntag, 30. September 2018 14:59:36 An: Andreas Schlee; [email protected]<mailto:[email protected]> Betreff: RE: CAM IPv6 partition warning even if cam partition not full Hi Andreas, Which cam profile do you use? Can you post your config? Maybe the same bug in 2016: https://puck.nether.net/pipermail/foundry-nsp/2016-March/009467.html Kind regards/Met vriendelijke groet, Dennis op de Weegh Bitency Hoge Ham 24 5104JG Dongen Kvk nummer: 20144338 BTW nummer: NL213538519B01 W: www.bitency.nl<http://www.bitency.nl> E: [email protected]<mailto:[email protected]> T: +31 (0)162 714066 -----Oorspronkelijk bericht----- Van: foundry-nsp <[email protected]<mailto:[email protected]>> Namens Andreas Schlee Verzonden: zondag 30 september 2018 10:19 Aan: [email protected]<mailto:[email protected]> Onderwerp: [f-nsp] CAM IPv6 partition warning even if cam partition not full Hi, on our MLXe running IronWare 6.0.0f we're getting CAM IPv6 partition warnings: >sh log | in CAM Sep 26 11:43:25:A:CAM IPv6 partition warning: total 65536 (reserved 0), free 51, slot 3, ppcr 1 Sep 26 11:38:25:A:CAM IPv6 partition warning: total 65536 (reserved 0), free 44, slot 3, ppcr 1 Sep 26 11:33:25:A:CAM IPv6 partition warning: total 65536 (reserved 0), free 22, slot 3, ppcr 1 Sep 26 11:28:25:A:CAM IPv6 partition warning: total 65536 (reserved 0), free 62, slot 3, ppcr 1 Sep 26 11:23:25:A:CAM IPv6 partition warning: total 65536 (reserved 0), free 100, slot 3, ppcr 1 Sep 26 11:18:25:A:CAM IPv6 partition warning: total 65536 (reserved 0), free 43, slot 3, ppcr 1 But the cam partition usage tells us there is still space free: >show cam-partition usage slot 3 Slot 3 XPP20SP 0: [...] [IPV6] 65536(size), 10218(free), 084.40%(used) :SNet 0: 10470(size), 10207(free), 002.51%(used) :SNet 1: 51359(size), 5(free), 099.99%(used) :SNet 2: 3268(size), 0(free), 100.00%(used) :SNet 3: 377(size), 0(free), 100.00%(used) :SNet 4: 45(size), 0(free), 100.00%(used) :SNet 5: 9(size), 0(free), 100.00%(used) :SNet 6: 2(size), 1(free), 050.00%(used) :SNet 7: 2(size), 2(free), 000.00%(used) :SNet 8: 2(size), 2(free), 000.00%(used) :SNet 9: 2(size), 1(free), 050.00%(used) >show ipv6 route sum IPv6 Routing Table - 55032 entries: 122 connected, 0 static, 0 RIP, 0 OSPF, 54910 BGP, 0 ISIS Number of prefixes: /16:1 /19:2 /20:11 /21:3 /22:6 /23:4 /24:21 /25:6 /26:15 /27:17 /28:82 /29:2292 /30:210 /31:123 /32:10733 /33:697 /34:595 /35:419 /36:2143 /37:403 /38:473 /39:166 /40:2878 /41:379 /42:579 /43:135 /44:4056 /45:343 /46:1455 /47:521 /48:25424 /50:4 /54:9 /56:39 /64:243 /112:1 /123:1 /124:5 /125:7 /126:489 /127:9 /128:33 Nexthop Table Entry - 120 entries So the warning tells us a highly different amount of free entries compared to the log: 10218 <-> 51 We checked the usage about 2 minutes after the warning appeared in the log. Anyone out there facing or faced the same issue? What information should we trust now: the warning in the log or the cam-partition usage? Another question would be: what are the "SNet" entries we see in the cam-partition, and why are some of them this small (size of 2)? Finally, the manual says about partition sharing: Supernet TCAM partition sharing In Brocade NetIron software versions prior to 03.2.00, TCAM resources could not be shared between the 32 levels of the IP Forwarding Information Base (FIB). Beginning with 03.2.00, TCAM allocation is optimized for dynamic allocation of resources to each level. If one level runs out of TCAM resources, it can obtain resources that have been allocated to another level but are unused. This feature applies to IPv4 and Layer 3 VPN routes. Does that mean that there is no sharing between the supernets in IPV6 CAM? Regards, Andreas Schlee -- velia.net<http://velia.net> Internetdienste GmbH * Hessen-Homburg-Platz 1 * 63452 Hanau Geschäftsführer: Franz G. Köhler, Arek Akilli * AG Hanau * HRB 7588 Tel: +49 6181 1898119 * http://www.velia.net _______________________________________________ foundry-nsp mailing list [email protected]<mailto:[email protected]> http://puck.nether.net/mailman/listinfo/foundry-nsp _______________________________________________ foundry-nsp mailing list [email protected]<mailto:[email protected]> http://puck.nether.net/mailman/listinfo/foundry-nsp _______________________________________________ foundry-nsp mailing list [email protected] http://puck.nether.net/mailman/listinfo/foundry-nsp