04-14-2012 07:17 AM - edited 03-04-2019 04:01 PM
Hi,
I was just wondering if anyone can give me an update on bug: CSCth02989.
It is in the release notes; http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/12.2_52_ey/release/notes/ol23402.html
Just wondering if it has been fixed?
04-14-2012 11:19 AM
The release notes indicate the bug as fixed in 12.2 (52) EY3
Have you found otherwise?
Alos, use LAN switching for switches questions.
04-15-2012 12:42 PM
I’m running 15.1(2)EY, any idea if it’s been fixed in that version.
I am seeing a strange issue where a client did some testing and we seem to be dropping packets at 950mbps, so they are not getting the full gig, noticed some deferred packets, so that it might be related.
Any thoughts?
Regards,
Rehaan Ahmed
BCX Content Distribution Solutions
Tel: +27 (0) 11 266 1437
Cell: +27 (0) 82 555 7866
Email: rehaan@bcxcds.com
Web: http://www.bcxcds.com<>>
04-15-2012 02:10 PM
It is fixed, and the bug is about CPU usage, not dropping packets.
If your switch drops packet most likelye you either are excessing interface capacity, or have configured some QoS.
04-14-2012 08:41 PM
I've got a ME3824X running 12.2(52)EY3 with GLC-T and working fine.
04-16-2012 12:20 AM
The switch is hardly loaded, on other interfaces so doubt it’s a backplane issue. There is no QoS configured at all.
Here is the interface config:
interface GigabitEthernet0/19
switchport access vlan 2204
switchport trunk allowed vlan none
switchport mode trunk
mtu 9200
load-interval 30
flowcontrol receive on
spanning-tree portfast
spanning-tree bpdufilter enable
spanning-tree bpduguard enable
spanning-tree guard root
service instance 2 ethernet
encapsulation untagged , dot1q 1-4094
l2protocol tunnel cdp stp vtp dtp pagp lldp lacp udld
bridge-domain 2204
Here is the show interface:
GigabitEthernet0/19 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 2c3f.3832.cf13 (bia 2c3f.3832.cf13)
Description:
MTU 9200 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 25/255
Encapsulation ARPA, loopback not set
Keepalive not set
Full-duplex, 1000Mb/s, media type is LX
input flow-control is on, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 2d21h, output 2d17h, output hang never
Last clearing of "show interface" counters 2d19h
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 2893910
Queueing strategy: fifo
Output queue: 0/40 (size/max)
30 second input rate 98683000 bits/sec, 8224 packets/sec
30 second output rate 0 bits/sec, 0 packets/sec
3369572015 packets input, 3125242836954 bytes, 0 no buffer
Received 0 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
1898822658 packets output, 1269073856396 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out
Transmit GigabitEthernet0/19 Receive
1369422594 Bytes 3320765865 Bytes
2937217561 Unicast frames 1729168603 Unicast frames
4204 Multicast frames 267685848 Multicast frames
0 Broadcast frames 1 Broadcast frames
815171930 Dot1Q frames 2732025893 Dot1Q frames
0 Too old frames 1063895694 Unicast bytes
1439114890 Deferred frames 2256870107 Multicast bytes
0 MTU exceeded frames 64 Broadcast bytes
0 FCS errors 16 FCS errors
0 1 collision frames 0 Alignment errors
0 2 collision frames
0 3 collision frames 0 Oversize frames
0 4 collision frames 5 Undersize frames
0 5 collision frames 5 Collision fragments
0 6 collision frames
0 7 collision frames 5 Minimum size frames
0 8 collision frames 2331331780 65 to 127 byte frames
0 9 collision frames 1076153936 128 to 255 byte frames
0 10 collision frames 451897635 256 to 511 byte frames
0 11 collision frames 234669100 512 to 1023 byte frames
0 12 collision frames 2197769308 1024 to 1518 byte frames
0 13 collision frames 0 Overrun frames
0 14 collision frames
0 15 collision frames
0 Pause frames 0 Pause frames
0 Excessive collisions 0 Symbol error frames
0 Late collisions 0 Invalid frames, too large
0 VLAN discard frames 0 Valid frames, too large
0 Excess defer frames 5 Invalid frames, too small
1870 64 byte frames 0 Valid frames, too small
1168417853 127 byte frames
576305105 255 byte frames 0 Too old frames
212255167 511 byte frames 0 Valid oversize frames
137817647 1023 byte frames 0 System FCS error frames
842424123 1518 byte frames
0 Too large frames
0 Good (1 coll) frames
0 Good (>1 coll) frames
04-16-2012 03:28 PM
MTU 9200 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 25/255
Encapsulation ARPA, loopback not set
Keepalive not set
Full-duplex, 1000Mb/s, media type is LX
input flow-control is on, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 2d21h, output 2d17h, output hang never
Last clearing of "show interface" counters 2d19h
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 2893910
What the heck??? Is this some kind of bug or something?
"rxload" shows something is being received BUT under "Last input" and "output" shows the interface hasn't received anything for the last 2 days and 17 hours. Plus look at the total output drops! WOOOOOW!
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