bms@ctnews.Convergent.COM (Bruce Schlobohm) (11/16/87)
Does there exist any sort of mail gateway software to connect IBM-PC's and/or Apple MacIntosh's to a machine running Unix? If you know of such, please drop me a line.
pozar@hoptoad.uucp (Tim Pozar) (11/18/87)
In article <692@ctnews.Convergent.COM> bms@ctnews.Convergent.COM (Bruce Schlobohm) writes: > >Does there exist any sort of mail gateway software to connect IBM-PC's and/or >Apple MacIntosh's to a machine running Unix? Yes there does. It is called UFGATE for UUCP to PC gatewaying. Call or drop me a line for more info. -- ======================================================================= | ...sun!hoptoad!\ Tim Pozar | | >fidogate!pozar Fido: 1:125/406 | | ...lll-winken!/ PaBell: (415) 788-3904 | | USNail: KKSF 77 Maiden Lane San Francisco CA 94108 | =======================================================================
robert@mcco.UUCP (9787 robert) (04/12/89)
Hi, I am looking into the availability of gateway systems or software to transfer mail between a 3com network and a unix network. I am familiar with the facilities to write your own, available from 3com but the company I am researching for is looking for something already useable with some level of support. Please respond by email and if I get any followup questions I will summarize to the net. Thanks in advance, Robert Robert R. Andrews Miscellaneous Computing Company UUCP: ...!uunet!mcco!robert -- Robert R. Andrews Miscellaneous Computing Company UUCP: ...!uunet!mcco!robert
reid@wrl.dec.com (Brian Reid) (01/22/91)
I'm interested in learning some vital statistics of mail gateways. Paul Vixie and I run Digital Equipment Corporation's primary mail gateway, decwrl.dec.com, and I've been wondering how it compares with others. For example: our typical load on a business day is 10,000 messages which get delivered to 17,000 recipients. Is that a lot or a little? I know that uunet is bigger, but how much bigger? On a crisis day, our gateway seems to be able to max out at maybe 22,000 messages delivered to 35,000 recipients. Surely other gateways have crisis days; are we doing well or poorly. Another example: transport mix. A rough glance at our log files shows me that about 40% of our traffic is DECNET (which isn't all that strange because we are DEC), and 40% of our traffic is TCP/IP, and the rest is uucp. Do other gateways move a significant amount of mail to or from DECNET? What hardware do you use? We use a pair of DECsystem 5400 computers, which are about 25 MIPS each, and which have 64 MBytes of memory. That says that our crisis peak message-handling capacity is 22,000 messages per 3200 MIP-megabytes, using speed cross VM occupancy is a crude measure of capacity. That's about 7 messages per day per MIP megabyte. Is that a lot or a little? Anybody else have any data? Brian Reid
cricket@hpcc01.HP.COM (Cricket Liu) (01/23/91)
Brian,
I run HP's primary mail gateway, relay.hp.com. I'd be happy to compare
notes with you.
For example: our typical load on a business day is 10,000 messages
which get delivered to 17,000 recipients. Is that a lot or a little?
That sounds like a lot. I'm just starting to get good numbers after our
syslog-muncher broke, but after a quick look at the last hundred or so logs
(ugh), I'd say we average about 4000 messages per day, with a peak of about
10000. I'm afraid I don't have figures for the number of recipients.
On a crisis day, our gateway seems to be able to max out at maybe
22,000 messages delivered to 35,000 recipients. Surely other gateways
have crisis days; are we doing well or poorly.
Sounds like you're doing well. How are your delivery times?
Another example: transport mix.
We're not too interesting here. relay is TCP/IP only.
What hardware do you use? We use a pair of DECsystem 5400 computers,
which are about 25 MIPS each, and which have 64 MBytes of memory.
relay is an HP9000/845 (about 24 MIPS) with 48 MBytes of memory.
That says that our crisis peak message-handling capacity is 22,000
messages per 3200 MIP-megabytes, using speed cross VM occupancy is a
crude measure of capacity. That's about 7 messages per day per MIP
megabyte. Is that a lot or a little?
Well, if I take 10,000 messages per day to be relay's peak, then our max
message-handling capacity is ~6.5 messages per day per MIP-megabyte.
Sounds like we're right in the ballpark.
I've also got numbers of delay, if that's interesting to you. We might
also compare local topology (relay is close to our 10 Mbps microwave link
to BARRNet) and flavor of mailer.
Now I wonder if IBM will give us their stats...
cricket
hostmaster@hp.combob@MorningStar.Com (Bob Sutterfield) (01/23/91)
In article <1240002@hpcc01.HP.COM> cricket@hpcc01.HP.COM (Cricket Liu) writes:
Now I wonder if IBM will give us their stats...
They probably handle about three messages per day on average, with
gusts to about seven, because of their restrictive access policies and
screwed-up or lacking MX records :-)tas@mcnc.org (Tim Seaver) (01/24/91)
Hmm... on a good day, mcnc.mcnc.org handles 4000 messages to 6000 destinations, but I don't have a quick example of a peak day. I'd guess double that as a maximum. Our mix is 40% uucp, 60% tcp/ip, no decnet. The host is a Microvax III with 16 Meg running 4.3 BSD. Calling the MVIII a 3 MIPS machine gives me 48 MIPS-megabytes for 80+ messages per day per MIPS-megabyte under normal rather than peak conditions. Either I've missed something, or there are some slow mail gateways out there. Tim Seaver Systems Programmer Center for Communications MCNC tas@mcnc.org
steve@panews (Steve DeJarnett) (03/21/91)
In article <1240002@hpcc01.HP.COM> cricket@hpcc01.HP.COM (Cricket Liu) writes: >Brian, >I run HP's primary mail gateway, relay.hp.com. I'd be happy to compare >notes with you. OK, I don't actually even run our gateway, but here's the stats off of it. Note that this is NOT ibm.com. This is simply our site's Internet gateway, which really only passes mail for user's here (about 65) and at a couple of other sites within IBM. > For example: our typical load on a business day is 10,000 messages > which get delivered to 17,000 recipients. Is that a lot or a little? > >That sounds like a lot. I'm just starting to get good numbers after our >syslog-muncher broke, but after a quick look at the last hundred or so logs >(ugh), I'd say we average about 4000 messages per day, with a peak of about >10000. I'm afraid I don't have figures for the number of recipients. Well, our average is about 775 messages a day, with peaks near 1000. No recipient figures here either. > What hardware do you use? We use a pair of DECsystem 5400 computers, > which are about 25 MIPS each, and which have 64 MBytes of memory. > >relay is an HP9000/845 (about 24 MIPS) with 48 MBytes of memory. We use an IBM RT Model 135 running BSD4.3 (maybe 6 MIPS, downhill, with a tailwind :-) with 8 MBytes of memory (well, it's not that busy, so it really doesn't need more). > That says that our crisis peak message-handling capacity is 22,000 > messages per 3200 MIP-megabytes, using speed cross VM occupancy is a > crude measure of capacity. That's about 7 messages per day per MIP > megabyte. Is that a lot or a little? > >Well, if I take 10,000 messages per day to be relay's peak, then our max >message-handling capacity is ~6.5 messages per day per MIP-megabyte. >Sounds like we're right in the ballpark. OK, if we take 1,000 messages per day to be ibminet's peak, then our max message-handling capacity is ~20 messages per day per MIP-megabyte. Then again, we're not really a major gateway, and our message delivery time has been quite reasonable, so I don't consider this to be too far out of line. The sample size here is too small to merit much consideration, anyway. >Now I wonder if IBM will give us their stats... Now you know...:-) A more interesting set of stats might be to look at ibm.com or the iinus1.ibm.com gateway to see what kind of traffic they're seeing. However, I doubt anyone is going to go out of their way to get mail stats for a machine running CMS...:-) Well, that was educational, if nothing else. Better late than never... Steve