I am troubleshooting an issue with a Canon Plotter printer which was working fine until we replaced the old 3COM switch that it was connected to with a new Cisco Catalyst 2960-X. After the switch replacement the printer is very slow queuing the print job and talks hours to print a large image (250 MB pdf file). While troubleshooting I placed a small 5 port netgear switch in between and everything works fine again but without that mini-switch in between it is painfully slow.
The Plotter is a Canon iPF820 and when looking at the switch port it connects to, it is negotiating a 100 mbps at Full duplex and not showing any errors:
GigabitEthernet1/0/14 is up, line protocol is up (connected) Hardware is Gigabit Ethernet, address is 0038.df4c.0d8e (bia 0038.df4c.0d8e) MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 10/100/1000BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output 00:00:02, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 7761 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 1000 bits/sec, 1 packets/sec 5 minute output rate 3000 bits/sec, 2 packets/sec 101863 packets input, 19812206 bytes, 0 no buffer Received 39119 broadcasts (31056 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 31056 multicast, 0 pause input 0 input packets with dribble condition detected 1023132 packets output, 392655932 bytes, 0 underruns 0 output errors, 0 collisions, 1 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
Cisco IOS Software, C2960X Software (C2960X-UNIVERSALK9-M), Version 15.2(5b)E, R ELEASE SOFTWARE (fc2) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2016 by Cisco Systems, Inc. Compiled Wed 14-Sep-16 06:29 by prod_rel_team
ROM: Bootstrap program is C2960X boot loader BOOTLDR: C2960X Boot Loader (C2960X-HBOOT-M) Version 15.2(3r)E1, RELEASE SOFTWAR E (fc1)
DRCSW01 uptime is 9 weeks, 4 days, 22 hours, 8 minutes System returned to ROM by power-on System restarted at 14:22:24 Eastern Wed Dec 14 2016 System image file is "flash:/c2960x-universalk9-mz.152-5b.E.bin" Last reload reason: power-on
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cisco WS-C2960X-48LPS-L (APM86XXX) processor (revision M0) with 524288K bytes of memory. Processor board ID FOC2035Y32N Last reset from power-on 2 Virtual Ethernet interfaces 1 FastEthernet interface 52 Gigabit Ethernet interfaces The password-recovery mechanism is enabled.
512K bytes of flash-simulated non-volatile configuration memory. Base ethernet MAC Address : 00:38:DF:4C:0D:80 Motherboard assembly number : 73-16692-05 Power supply part number : 341-0528-02 Motherboard serial number : FOC203536P1 Power supply serial number : DCC202993TB Model revision number : M0 Motherboard revision number : A0 Model number : WS-C2960X-48LPS-L Daughterboard assembly number : 73-14200-03 Daughterboard serial number : FOC20351Y6J System serial number : FOC2035Y32N Top Assembly Part Number : 68-100470-02 Top Assembly Revision Number : B0 Version ID : V04 CLEI Code Number : CMMLP00ARD Daughterboard revision number : A0 Hardware Board Revision Number : 0x18
Switch Ports Model SW Version SW Image ------ ----- ----- ---------- ---------- * 1 54 WS-C2960X-48LPS-L 15.2(5b)E C2960X-UNIVERSALK9-M
Thanks. This could be the output drops causing the slowness. Since the packets starts retransmits, it can worsen it. Output drops are not caused by Layer 1. This could be due to buffer filling up. Please send me the below output to see which queue is dropping them. We can try tweak them to get rid of it.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.