Hi all...new to the list and was referred by someone at Cisco for answers
to this weird situation in hopes someone may have been unlucky enough to
meet it before. We're running a 3640 running
IOS (tm) 3600 Software (C3640-I-M), Version 11.2(8)P, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-1997 by cisco Systems, Inc.
Compiled Mon 11-Aug-97 18:52 by ccai
Image text-base: 0x600088E0, data-base: 0x6044A000
ROM: System Bootstrap, Version 11.1(7)AX [kuong (7)AX], EARLY DEPLOYMENT
RELEASE SOFTWARE (fc2)
And apparently there is something that drastically misrepresents T-1 speeds
when traffic shaping is turned off (though I might be imagining this
connection). Outward appearances suggest it doubles the actual speed on
just the serial interfaces but it is virtually impossible to gauge if its
doubling both of them. A sho int on one of the serials in question shows a
3 megabit throughput over a single DS-1 (saves money, granted, if only it
were true). There is nothing unusual about the config, standard HDLC on one
and PPP on the other; and the traffic shaping which causes the bit rate to
at least appear normal when its turned on does not work, well, it does for
three seconds and then stops. We're trying to limit these particular
interfaces to a total of 768Kbits/sec, 256 on one and 512 on the other:
access Target Byte Sustain Excess Interval Increment Adapt
I/F list Rate Limit bits/int bits/int (ms) (bytes)
Active
Se0/1 7 256000 32000 256000 0 1000 32000 -
Se2/1 7 512000 64000 512000 0 1000 64000 -
Access Queue Packets Bytes Packets Bytes Shaping
I/F List Depth Delayed Delayed Active
Se0/1 7 0 2450469 3339342768 0 0 no
Se2/1 7 0 3406953 3087166545 0 0 no
i.e,,
interface Serial0/1
ip address xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx
ip access-group 199 out
encapsulation ppp
bandwidth 1544
no peer default ip address
no fair-queue
traffic-shape group 7 256000 256000 0
The access group is a group of web servers and is showing massive traffic
but not shaping it.
Any ideas would be helpful, the traffic shape issue has been driving us
crazy for some time.
thanks,
-doug
................ i n t e r n e t S C E S C A P E...............
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:15 EDT