[Search for users] [Overall Top Noters] [List of all Conferences] [Download this site]

Conference smaug::snagwy

Title:	SNA GATEWAY NOTEFILE
Notice:	Note 1.* -> kits and doc, 288.* -> obtaining product support
Moderator:	EDSCLU::GARROD

Created:	Fri Feb 07 1986
Last Modified:	Fri Jun 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	7116
Total number of notes:	28576

7065.0. "DTF performance" by GRIFUN::PISANI () Thu Apr 10 1997 09:11

    We need to use an AlphaStation 4100 (Unix) with DTF on Token Ring using
    SNA Peer Server and PBXNP-AA Adapter.
    Does anyone know the performance of DTF using this configuration ?
    
    Thanks in advance and Ciao
    Danila

T.R Title User Personal
Name Date Lines

7065.1 Token Ring performance and DTFDU FREE::BLATT Thu Apr 10 1997 15:33 25

T.R	Title	User	Personal Name	Date	Lines
7065.1	Token Ring performance and DTFDU	FREE::BLATT		`Thu Apr 10 1997 15:33`	25
	hi, performance testing was done over a 16Mbps TR using a 3172 connection to the IBM system. we also tested an IBM 3746 (TIC-3) connection to the mainframe on the same ring. note that the Alpha system was a 2100. the Peer Server was installed on the Digital UNIX box where DTFDU was installed (i.e. no TCP/DECnet). (the report is pending approval.) i am tracking down the card model used on the 2100 and will post. rates ranged between ~5.6Mbps to as high as ~15Mbps. record size is a BIG factor in the difference. 80 byte records were at the low range. the next step, 512 bytes, yielded between 10Mbps and 15Mbps rates (larger RUsize, 16K, contributing to the higher value). the 3172 connection typically edged out the TIC-3. there remains much to be learned about various configurations. of course, our lab is never going to agree with the customer environ. so, extrapolate at your own risk. lew lew

hi,

performance testing was done over a 16Mbps TR using a 3172 connection to the
IBM system.  we also tested an IBM 3746 (TIC-3) connection to the mainframe
on the same ring.

note that the Alpha system was a 2100.  the Peer Server was installed on 
the Digital UNIX box where DTFDU was installed (i.e. no TCP/DECnet).  
(the report is pending approval.)  i am tracking down the card model used
on the 2100 and will post.

rates ranged between ~5.6Mbps to as high as ~15Mbps.  record size is a BIG
factor in the difference.  80 byte records were at the low range.  the next
step, 512 bytes, yielded between 10Mbps and 15Mbps rates (larger RUsize, 16K,
contributing to the higher value).   

the 3172 connection typically edged out the TIC-3.

there remains much to be learned about various configurations.  of course, our
lab is never going to agree with the customer environ.  so,  extrapolate at
your own risk.

lew

lew