[Xorp-users] Xorp debug messages
Martin Hoffmann
mh5942@bris.ac.uk
Wed, 01 Mar 2006 13:40:51 +0000
Hi all,
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?
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
------------------
Any ideas are highly appreciated,
Martin