[Sis-SCPS-INTEREST] SCPS-RI Data Rate

[Jayasri Sangu]

I have configured the gateway as TUN not as TAP.


Jayasri



Come see us at CommunicAsia 2006 http://www.communicasia.com/
June 20-23, 2006 in Singapore at the US International Pavilion booth 6F1-03


-----Original Message-----
From: Feighery, Patrick D. [mailto:feighery at mitre.org]
Sent: Monday, June 19, 2006 6:59 AM
To: Jayasri Sangu; sis-scps-interest at mailman.ccsds.org
Subject: RE: [Sis-SCPS-INTEREST] SCPS-RI Data Rate 


Your first problem involves how you assigned your network addresses.
You have configured the gateway to be a transparent bridge but your
assigned addresses do not make sense..

I answered a similar question last Thursday, go though the list archive
and look for a message entitled "RE: [Sis-SCPS-INTEREST] Gateway" from
me.  I've attached a png file to that message that should explain
everything...

Hope this helps.

	Pat


>>-----Original Message-----
>>From: sis-scps-interest-bounces at mailman.ccsds.org 
>>[mailto:sis-scps-interest-bounces at mailman.ccsds.org] On 
>>Behalf Of Jayasri Sangu
>>Sent: Friday, June 16, 2006 7:00 PM
>>To: sis-scps-interest at mailman.ccsds.org
>>Subject: [Sis-SCPS-INTEREST] SCPS-RI Data Rate 
>>
>>Hi All,
>>
>>    I have a network setup with 5 machines
>>
>>   A  ------------------ B -------------- C -------------D 
>>------------------E
>> 10.30.0.2       10.30.0.1       10.10.0.2     10.40.0.1      
>> 10.40.0.2
>>	          10.10.0.1       10.20.0.2     10.20.0.1
>>
>>
>>	C is a delay machine with the 600ms roundtrip delay.
>>
>>            B & D have the gateway with the following configuration

>>		./configure --gateway=yes --tun=yes   
>>--low_idle=yes --low_cpu=yes 
>>
>>            The rfile on both B and D is
>>
>>	# GW Resource File - comments are allowed, starting with '#'.
>>#    Comments can be anywhere EXCEPT between parameter values.
>>
>># interface A info
>>AIF_NAME        eth1
>>AIF_RATE        10000000
>>AIF_BUF         32768
>>AIF_CC          1
>>AIF_TCPONLY     1
>>AIF_MTU         1500
>>AIF_TAP_NAME    tap0
>>
>>
>># interface B info
>>BIF_NAME        eth2
>>BIF_BUF         1000000
>>BIF_RATE        1000000
>>BIF_CC          0
>>BIF_MINRTO      600000
>>BIF_TAP_NAME    tap1
>>
>># IPFW info
>>C_DIVPORT       52000
>>C_TAP_REMOTE_ACCESS 1
>>
>>
>>     When I do ftp from A/E or E/A,  the data rate is around 1Mbps.
>>
>>     As I increase the BIF_RATE, the data rate is comes down 
>>and for BIF_RATE=4000000 the data rate is very very low.
>>
>> And I get the "BAD CHECKSUM on seq num abs ............" fatal
error.
>>
>>
>>Why I am getting this FATAL error ??
>>
>>
>>Thanks
>>Jayasri
>>
>>
>>
>>
>>Come see us at CommunicAsia 2006 http://www.communicasia.com/
>>June 20-23, 2006 in Singapore at the US International 
>>Pavilion booth 6F1-03
>>
>>
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>>http://mailman.ccsds.org/cgi-bin/mailman/listinfo/sis-scps-interest
>>