C3020 speed nonegociate issue ??

Unanswered Question
Jul 2nd, 2009
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from configuration guide we can set

speed no negociate on C3020's SFP port

but i do no find this command see above

any comments welcomed


Cisco IOS Software, CBS30X0 Software (CBS30X0-IPBASE-M), Version 12.2(50)SE, RELEASE SOFTWARE (fc1)

Copyright (c) 1986-2009 by Cisco Systems, Inc.

Compiled Sat 28-Feb-09 00:18 by weiliu

Image text-base: 0x00003000, data-base: 0x01540000

GigabitEthernet0/20 is up, line protocol is up (connected)

Hardware is Gigabit Ethernet, address is 001f.9d7c.f914 (bia 001f.9d7c.f914)

MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation ARPA, loopback not set

Keepalive not set

Full-duplex, 1000Mb/s, link type is auto, media type is 1000BaseSX SFP

Switch#conf t

Enter configuration commands, one per line. End with CNTL/Z.


Switch(config)#interface gi

Switch(config)#interface gigabitEthernet 0/20


service-policy shutdown small-frame snmp

source spanning-tree srr-queue storm-control



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tstanik Wed, 07/08/2009 - 16:14
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The 1000BASE-SX SFP module ports support the nonegotiate keyword in the speed interface configuration command. Duplex options are not supported.

If you are connected to a device that does not support autonegotiation, you can configure speed on copper SFP module ports; however, you can only configure fiber SFP module ports to not negotiate (nonegotiate).

When configuring an interface speed and duplex mode, note these guidelines.



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