Hi Steinar,
> From: sthaug@nethelp.no
> Date: Tue, 07 Jul 1998 13:21:57 +0200
>
> Today I tried upgrading the router to 11.3(4), which can support all the
> necessary IPX encapsulations natively - the hope was to get rid of all
> the BVIs. We have done this with 11.3(3.3) on a couple of routers earlier
> with great success.
>
> Unfortunately, 11.3(4) was a total failure. The Fast Ethernet interface
> on the 7206 (this is the built in MII port) shows lots of drops and
> throttles, and essentially no traffic makes it through the router:
We encountered the similar problem with 11.3(4) on 4700M. One Ethernet interface
has abnormally high rate of throttles,
Ethernet0 is up, line protocol is up
Hardware is Lance, address is 00e0.1e8d.0c4a (bia 00e0.1e8d.0c4a)
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, rely 255/255, load 39/255
Encapsulation ARPA, loopback not set, keepalive set (10 sec)
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 5d22h
Queueing strategy: fifo
Output queue 0/40, 1 drops; input queue 301/300, 2951066 drops
5 minute input rate 1349000 bits/sec, 383 packets/sec
5 minute output rate 1558000 bits/sec, 452 packets/sec
129503640 packets input, 1634868676 bytes, 0 no buffer
Received 372127 broadcasts, 0 runts, 0 giants, 2951066 throttles
3 input errors, 3 CRC, 3 frame, 0 overrun, 0 ignored, 0 abort
0 input packets with dribble condition detected
135129131 packets output, 1432320303 bytes, 0 underruns
0 output errors, 5271492 collisions, 3 interface resets
0 babbles, 0 late collision, 3720388 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
while the other Ethernet interface of the same router (with more intense
traffic) has no such problem.
Ethernet1 is up, line protocol is up
Hardware is Lance, address is 00e0.1e8d.0c4d (bia 00e0.1e8d.0c4d)
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, rely 255/255, load 42/255
Encapsulation ARPA, loopback not set, keepalive set (10 sec)
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/40, 85 drops; input queue 0/150, 34 drops
5 minute input rate 2097000 bits/sec, 597 packets/sec
5 minute output rate 1677000 bits/sec, 431 packets/sec
196800559 packets input, 2257598641 bytes, 26 no buffer
Received 1416179 broadcasts, 0 runts, 5 giants, 34 throttles
5 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 input packets with dribble condition detected
124255304 packets output, 1873509004 bytes, 0 underruns
0 output errors, 4087803 collisions, 7 interface resets
0 babbles, 0 late collision, 6436945 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
Interface Ethernet0 has no filters configured. Router has enough spare CPU
cycles (CPU utilization ~25%), plenty of memory (~27M Processor + ~6M I/O).
I'm not sure but it seems that there is something wrong with managing input
buffers in 11.3(4). Anybody knows about workarounds?
Regards,
--- Dimitri I. Sidelnikov FREEnet Hostmaster
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