[c-nsp] memory problem with sr modules not with zr

[David Prall]

What exact Adva gear are you using. Typically CWDM is passive and requires
CWDM optics. SR are Short Reach Multimode. You say that CDP is up and happy
over the link, what does DOM say? It works as L3 but not as L2? What traffic
was traversing it at L3? At L2 you mention that OSPF seems to be working
like crazy, what do the interface counters look like, any CRC errors or
anything on the link. I think you have so many errors in the packets that
the CRC is calculating correctly, and OSPF is having to deal with the
corrupt data.

David

--
http://dcp.dcptech.com


> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-
> bounces at puck.nether.net] On Behalf Of Hooft van Huysduynen, Dirk
> Sent: Tuesday, November 30, 2010 4:16 PM
> To: 'cisco-nsp at puck.nether.net'
> Subject: [c-nsp] memory problem with sr modules not with zr
> 
> Hello,
> 
> I've got an issue which I can't seem to analyse.
> 
> I've got 4 6509's setup in a square. Divided over two sites.
> 
> -------                                         -------
> | SW1 | ----L2-2 other site with 10Gbase-ZR-----| SW1 |
> -------                                         -------
>    | <10Gbase-SR	                                  | <10Gbase-SR
> 
> -------                                         -------
> | SW2 | -----L2-2 other site with 10Gbase-ZR-----| SW 2
> -------                                         -------
>   |-----------L3----10GbaseSR over Adva CWDM---------|
> 
> I tried to replace the secondary link between the SW2's with another
> provider connectet with an Adva CWDM device.
> I tested tested the modules on layer three as drwan above.
> All worked well incl cdp etc etc
> 
> -------                                         -------
> | SW1 | ----L2-2 other site with 10Gbase-ZR-----| SW1 |
> -------                                         -------
>    | <10Gbase-SR	                                  | <10Gbase-SR
> 
> -------                                         -------
> | SW2 | ------L2----10GbaseSR over Adva CWDM ---| SW 2
> -------                                         -------
> 
> 
> After doing this I got the following problem:
> Links comes up....
> HSRP and STP do their job.
> And after 1 minute orso everything stops.. OSPF seems to be working
> like crazy.
> And I get the following error from the switch on the left site:
> 
> 1134: Nov 30 19:49:04.862: %SYS-2-MALLOCFAIL: Memory allocation of 120
> bytes failed from 0x0, alignment 32
> 1135: Pool: I/O  Free: 0  Cause: Not enough free memory
> 1136: Alternate Pool: none  Free: 0  Cause: No Alternate pool
> 1137:  : raw_ip.proc : (PID=16426, TID=6) : -Traceback=(s72033_rp-
> ipservicesk9_wan-1-dso-p.so+0x274C4) ([37:0]+0x2A9A8) ([27:-4]0-dso-
> n+0x18D40) ([27:-4]57-dso-+0x13900) ([28:-9]6+0x3EC8) ([28:-9]7+0x84FC)
> ([38:0]+0x998C) ([38:0]+0x975C) ([28:-9]6+0x4114) ([38:0]+0x43C4)
> ([27:-4]6-dso-bn+0x4449C) ([27:-4]1-dso-+0x319B4) ([37:0]+0x2E558)
> ([37:0]+0x5133C) ([0:-3]libc+0x2401C)
> 
> When after this I replace the SR modules back to the zr modules
> averything works perfectly.
> 
> Replaces it again with sr> it goes wrong
> Replace it back with ZR it works.
> 
> Fyi I run the modules directly from the supervisor.
> 
> On the left I run ios (s72033_rp-IPSERVICESK9_WAN-VM), Version
> 12.2(33)SXH2a,
> on the right I run ios (s72033_rp-IPSERVICESK9_WAN-M), Version
> 12.2(33)SXI3,
> 
> 
> Why does it work with ZR and not with SR?
> Any tips are welcome
> 
> Gr Dirk
> 
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