ronbo@nikhefk.UUCP (Ronald Boontje) (02/23/89)
We have noticed every ten seconds broadcast messages are sent between our two FastPath 4 gateways running K-Star. I have found that the ethernettype 809b is reserved by Kinetics. Can anybody explain what causes so many broadcasts and if it is possible to reduce the broadcast traffic between the boxes. Following a message dump of some traced broadcast-messages: 12:52:44.34 8:0:89:a0:44:99 ff:ff:ff:ff:ff:ff 809b 46: ff99 0100 1801 0101 0001 0899 3801 0100 0100 3802 0238 0300 3bb9 0000 0000 0000 12:52:54.26 8:0:89:a0:44:99 ff:ff:ff:ff:ff:ff 809b 46: ff99 0100 1801 0101 0001 0899 3801 0100 0100 3802 0238 0300 3bb9 0000 0000 0000 12:52:56.86 8:0:89:a0:49:40 ff:ff:ff:ff:ff:ff 809b 46: ffc0 0100 1801 0101 0001 08c0 3801 0000 0100 3802 0138 0301 3bb9 0000 0000 0000 -- Usenet: ronbo@nikhefk Normal mail: Ronald Boontje NIKHEF-K (CSG) Postbus 4395 1009 AJ Amsterdam The Netherlands Phone: +31 20 5922038
kwe@bu-cs.BU.EDU (kwe@bu-it.bu.edu (Kent W. England)) (02/24/89)
In article <508@nikhefk.UUCP> ronbo@nikhefk.UUCP (Ronald Boontje) writes: > >We have noticed every ten seconds broadcast messages are sent >between our two FastPath 4 gateways running K-Star. The AppleTalk Routing Table Maintenance Protocol (RTMP) runs every ten seconds between Appletalk bridges. It is broadcast. You say the type code belongs to Kinetics? Perhaps they modified the RTMP a little for K Star? AppleTalk is chatty and rather nervous. Perhaps you can isolate the AppleTalk stuff behind a bridge.
ts@cup.portal.com (Tim W Smith) (02/25/89)
If I am reading those packet dumps right, there are no modifications there. Those are normal EtherTalk RTMP packets. Tim Smith
hjs@LINDY.STANFORD.EDU (02/26/89)
Here is a decode of the sample broadcast storm frames you reported.
You can see it is RTMP traffic. Were you aware that your K-boxes think
there are five Appletalk Nets around? Not just net 1???
It appears you have two routers (153 and 192) on the LocalTalk.
(AppleTalk decode courtesy of the Network General Sniffer PA-1310 AppleTalk
Protocol Suite option.)
- - - - - - - - - - - - - - - - Frame 2 - - - - - - - - - - - - - - - - -
SUMMARY Delta T Destination Source Summary
M 2 0.0000 Broadcast KinetxA04499 RTMP R NET=1.0 Routing entries=5
RTMP:----- RTMP Data -----
RTMP:
RTMP: Net = 1.0
RTMP: Node id length = 8 bits
RTMP: Node id = 153
RTMP:
RTMP: Tuple 1 : Net = 14337.0, Distance = 1
RTMP: Tuple 2 : Net = 1.0, Distance = 0
RTMP: Tuple 3 : Net = 14338.0, Distance = 2
RTMP: Tuple 4 : Net = 14339.0, Distance = 0
RTMP: Tuple 5 : Net = 15289.0, Distance = 0
RTMP:
RTMP:[Normal end of "RTMP Data ".]
RTMP:
- - - - - - - - - - - - - - - - Frame 3 - - - - - - - - - - - - - - - - -
SUMMARY Delta T Destination Source Summary
3 0.0000 Broadcast KinetxA04499 RTMP R NET=1.0 Routing entries=5
RTMP:----- RTMP Data -----
RTMP:
RTMP: Net = 1.0
RTMP: Node id length = 8 bits
RTMP: Node id = 192
RTMP:
RTMP: Tuple 1 : Net = 14337.0, Distance = 1
RTMP: Tuple 2 : Net = 1.0, Distance = 0
RTMP: Tuple 3 : Net = 14338.0, Distance = 1
RTMP: Tuple 4 : Net = 14339.0, Distance = 1
RTMP: Tuple 5 : Net = 15289.0, Distance = 0
RTMP:
RTMP:[Normal end of "RTMP Data ".]
RTMP:Bowman@SCIENCE.UTAH.EDU (Pieter) (02/27/89)
I belive that the 809b ethernet protocol is officially
register by Apple with who ever does this these days (IEEE
if I remember correctly).
As has been much talked about lately (broadcasting done
by AppleTalk protocols) the RTMP packets every ten seconds
are within the protocol specifications (which is really too
bad).
Pieter
bowman@utah.science.edu
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