[Xorp-users] Xorp debug messages

[Chris Robson NRL]

Anyone successfully built a Fedora Core 4 system with IPv6 multicast?  I'm 
using pim6sd which seems to have some issues with multicasting out several 
interfaces.

Thanks.....

At 02:46 PM 3/1/2006, Pavlin Radoslavov wrote:
> > I'm currently testing my Click router multicast elements against Xorp.
> >
> > What is the easiest way to make Xorp print information about the PIM
> > messages it received? Is there a way to enable Debug output for PIM only?
>
>Add the following to your XORP configuration:
>
>protocols {
>     pimsm4 {
>         ...
>         traceoptions {
>             flag all {
>                 disable: false
>             }
>         }
>     }
>}
>
>In addition, you could add the following to the top of
>pim/pim_node.cc and recompile:
>
>#define DEBUG_LOGGING
>#define DEBUG_PRINT_FUNCTION_NAME
>
>With the latter solution PIM will print "Received message from ..."
>for any message received from the MFEA.
>
> > My PIM Hello messages have the following format (captured with
> > tethereal). I do not see the point why Xorp's PIM does not recognise them:
> >
> > -----------------
> > Capturing on eth3
> > Frame 1 (72 bytes on wire, 72 bytes captured)
> >     Arrival Time: Mar  1, 2006 13:05:56.263655000
> >     Time delta from previous packet: 0.000000000 seconds
> >     Time since reference or first frame: 0.000000000 seconds
> >     Frame Number: 1
> >     Packet Length: 72 bytes
> >     Capture Length: 72 bytes
> >     Protocols in frame: eth:ip:pim
> > Ethernet II, Src: Intel_08:f0:a8 (00:04:23:08:f0:a8), Dst:
> > 01:00:5e:00:00:0d (01:00:5e:00:00:0d)
> >     Destination: 01:00:5e:00:00:0d (01:00:5e:00:00:0d)
> >     Source: Intel_08:f0:a8 (00:04:23:08:f0:a8)
> >     Type: IP (0x0800)
> > Internet Protocol, Src: 172.20.12.1 (172.20.12.1), Dst: 224.0.0.13
> > (224.0.0.13)
> >     Version: 4
> >     Header length: 24 bytes
> >     Differentiated Services Field: 0xc0 (DSCP 0x30: Class Selector 6;
> > ECN: 0x00)
> >         1100 00.. = Differentiated Services Codepoint: Class Selector 6
> > (0x30)
> >         .... ..0. = ECN-Capable Transport (ECT): 0
> >         .... ...0 = ECN-CE: 0
> >     Total Length: 58
> >     Identification: 0xf45f (62559)
> >     Flags: 0x00
> >         0... = Reserved bit: Not set
> >         .0.. = Don't fragment: Not set
> >         ..0. = More fragments: Not set
> >     Fragment offset: 0
> >     Time to live: 1
> >     Protocol: PIM (0x67)
> >     Header checksum: 0x9716 [correct]
> >         Good: True
> >         Bad : False
> >     Source: 172.20.12.1 (172.20.12.1)
> >     Destination: 224.0.0.13 (224.0.0.13)
> >     Options: (4 bytes)
> >         Router Alert: Every router examines packet
> > Protocol Independent Multicast
> >     Version: 2
> >     Type: Hello (0)
> >     Checksum: 0x8447 [correct]
> >     PIM parameters
> >         Holdtime (1): 105s
> >         LAN Prune Delay (2)
> >             T bit is not set
> >             LAN Delay: 500ms
> >             Override Interval: 2500ms
> >         DR Priority (19): 2
> >         Generation ID (20): 1331494912
> > ------------------
>
>There is nothing unusual I can see about the above message, so the
>starting point would be to see whether the PIM-SM module receives it
>at all. If not, then try to find whether the MFEA receives it.
>
>In general, if you want to print something for debug purpose inside
>the PIM-SM module or MFEA, use the XLOG_* facility (recommended) or
>fprintf(stderr), but don't use printf() or fprintf(stdout).
>
>Pavlin
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Christopher L. Robson
GS-1550-NP-IV
(V/C) 202-404-3138
EMAIL: Chris.Robson@nrl.navy.mil
GIG-EF SIP: Chris.Robson@nrl.gigef.net
DoN, NRL, Code 5590
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Washington, D.C. 20375