> Support > cc:Mail Router/Multiple TCP/IP Sessions

cc:Mail Router/Multiple TCP/IP Sessions

Subject: Re[6]: TCPIP/FTP Router and PORT numbers
Author: Ron Herardian at GSS
Date: 02-13-96 12:46

Kazu,

Please find my comments below in blue flagged with a dash ("-").

Ron

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Subject: Re[5]: TCPIP/FTP Router and PORT numbers
Author: "cc:Mail Interest Group" <CCMAIL-L@listserv.okstate.edu> at INTERNET
Date: 2/12/96 9:34 AM

Ron,

1. We are looking for a capability of having multiple listening sessions on one router machine (OS/2). I thought that we had to wait for 5.14 (?) or maybe R6. It sounds that Router 5.13 allows multiple listening sessions already. Is this true?

- It is true. This capability is available in version 5.13.02. I am testing with FTP Software's PC/TCP for OS/2 version 1.31.

2. How many incoming sessions over TCP/IP do you think one OS/2 router can handle? Say, with a Pendium 75Mhz machine over 10Mbit Ethernet.

- I have a customer running 8 sessions per machine with up to 3 concurrent users. In my testing I am using 3 sessions on a Pentium 90 with Warp (only 16MB RAM at this time).

3. We are also looking for a possiblity of automatic router machine huting (IP huting) so that we can have many listening sessions with multiple router machines. This capability is also desiarable from a reliablity point of view so that we can have redundant router configuration in which earch router machine backs up each other automatically.

- I am doing this now for Mobile users. In this case, it's actually very simple. Just enter the node names or IP addresses of multiple Routers in the Mobile Address Book address field for the user's home post office. Mobile automatically rolls over to the next Router when a connection fails.

A regular dial-up or X.25 network has such hunt group capability in the network itself. Since the TCP/IP network does not have any concept of hunt group for IP addresses, something has to be done outside of the network. Do you have any idea for this? One thing cc:Mail could do is to implement a multiple addressing capability just like cc:Mobile has. But unfortunatly, cc:Mail does not have multiple addressing now.

Kazu.

-You would have to use a front-end processor of some kind to get one IP node name to resolve to multiple IP addresses via DNS based on the availability of the destination host (a free cc:Mail Router session). One customer of mine has a system like this to front end TN3270 sessions. Maybe the same vendor can solve your problem as well. I'll see if I can get the vendor information for you.

Ron

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Subject: Re[4]: TCPIP/FTP Router and PORT numbers
Author: "cc:Mail Interest Group" <CCMAIL-L@listserv.okstate.edu> at INTERNET
Date: 2/11/96 9:37 PM

Perry,

The latest version of Router (5.13.02) is still written with FTP Software's API. In the future, we'll have Router running natively on NT and also more products that use Winsock. In the mean time, we're stuck with FTP Software. I've had few problems with FTP's TCP/IP stack, although the configuration can be trying.

Subject: Re: Re[2]: TCPIP/FTP Router and PORT numbers
Author: "cc:Mail Interest Group" <CCMAIL-L@listserv.okstate.edu> at
INTERNET_ROUTER
Date: 2/11/96 1:18 PM

Ron,

Do you have to use FTP's TCP/IP stack, or can you use the stack that came with Warp Connect? I am interested in doing this not over the internet, but through a central Shiva box with IP support to local cc:Mail routers.

Thanks,
-Perry Harris

On Fri, 9 Feb 1996 17:47:01 -0600 you wrote:

FYI - You can also run multiple sessions under OS/2 with Router 5.13.02. I am testing this under Warp with concurrent inbound connections from Mobile users.

If this works well enough, I can have large numbers of Mobile users get their mail via Internet. This will be very good for traveling business people because they can dial a local number for Internet access, rather than a long-distance call to a cc:Mail Router.

Ron

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