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From: chrisf@uswmrg2.UUCP (Chris Fedde)
Newsgroups: comp.dcom.sys.cisco
Subject: Configuring X25 on
Message-ID: <1990Apr10.030211.19691@uswmrg2.UUCP>
Date: 10 Apr 90 03:02:11 GMT
Reply-To: chrisf@uswmrg2.UUCP (Chris Fedde)
Organization: US West Marketing Resources Group, Aurora CO.
Lines: 45

Pardon me if this seems naive but...  I manage a network which
incorporates three MGS routers connected in in a triangle via 56kb
serials.  There is a single ethernet port on each of the routers from
which the host equipment hangs.  Maybe a picture would help:


                   +------+            +------+
    ----ether------| MGS1 |---56kb-----| MGS2 |----ether-----
                   |      |            |      |
                   +------+            +------+
                         \             /
                          5           5
                           6         6
                            k       k
                             b     b
                              \   /
                            +------+
                            | MGS3 |----ether-----
                            |      |
                            +------+

The IP addressing scheme has the three serial links and one of the
ether LANs subnetted out of one class C network and the remaining two
ethernets as separate class C networks.  The gateways are routing
appletalk and tcp/ip with SYSV hosts, macs on ethernet and macs gated
in to ethernet via kenetics fastpaths.

My problem is this...  When someone fires off a file transfer (from
appletalk or ftp/rcp) telnet sessions which go over a serial link
become very sluggish.  Also the transfer rate of an FTP copy never
comes even close to 56kb. I had expected the transfer rate to exceed
56kb because of multiple routes.  When I look at the statistics from a
'show ip traffic' or 'show apple traffic' it seems that one link is
not even used.  Is there a way to balance the load more evenly over
the 56kb links?  Would x25 routing help?  If so, do you have any
pointers for me on what I should be doing?  If not, where has my
thinking gone wrong.

Please email responses to ...boulder!uswat!uswmrg2!chrisf since this
is the only reliable path I know to me.  Or go ahead and post if
you think the issue has broad enough interest.

	Thanks
	Chris Fedde
	uswmrg2!chrisf@uswat.uswest.com