100mb SFP's locking at half-duplex?

[kythri]

I've got a couple of links that one end won't set at full-duplex.

The offending interface is utilizing a GLC-CC-100FX SFP.

The other end is running full duplex, as it should, but this end is half, and apparently, since this interface is an SFP module, I can't manually set the duplex.

Any ideas how to resolve this?

 

[vipergg]

Check to see if your code level is adequate for the sfp module you are using , you should be able to set it to full .

 

[kythri]

Should be...

Cisco shows that for module GLC-GE-100FX (I said CC instead of GE above) on a WS-2960C-48TC-L that 12.2(25)FX is required, which is what we're running here.

When I'm in the interface config, I don't even have the option to set speed and duplex - the commands don't exist.

 

[burtsbees]

How are you trying to do it?

Burt

 

[kythri]

--- BEGIN PASTE ---
XXXXXXXXX#config t
Enter configuration commands, one per line. End with CNTL/Z.
XXXXXXXXX(config)#int gi0/2
XXXXXXXXX(config-if)#duplex full
^
% Invalid input detected at '^' marker.

XXXXXXXXX(config-if)#
--- END PASTE ---

Get the same response with the "speed" command, as well. It's almost as if this module doesn't support setting the speed and duplex, which is wonky, because it won't negotiate to 100/Full, which it should be.

 

[burtsbees]

try "full duplex"
It's backwards from a router.

Burt

 

[kythri]

Same error. I've used the "duplex full" command on other interfaces on a 2960 before...

 

[burtsbees]

What options are there?
switch(config-if)#?

Burt

 

[ADB100]

What does the command:

show idprom interface gigabitethernet x/x

show you?

Andy

 

[kythri]

Interface configuration commands:
arp Set arp type (arpa, probe, snap) or timeout
auto Configure Automation
bandwidth Set bandwidth informational parameter
carrier-delay Specify delay for interface transitions
cdp CDP interface subcommands
channel-group Etherchannel/port bundling configuration
channel-protocol Select the channel protocol (LACP, PAgP)
dampening Enable event dampening
default Set a command to its defaults
delay Specify interface throughput delay
description Interface specific description
dot1x Interface Config Commands for 802.1x
exit Exit from interface configuration mode
fair-queue Enable Fair Queuing on an Interface
flowcontrol Configure flow operation.
help Description of the interactive help system
hold-queue Set hold queue depth
ip Interface Internet Protocol config commands
keepalive Enable keepalive
lacp LACP interface subcommands
load-interval Specify interval for load calculation for an interface
logging Configure logging for interface
mac MAC interface commands
macro Command macro
max-reserved-bandwidth Maximum Reservable Bandwidth on an Interface
mdix Set Media Dependent Interface with Crossover
media-type Configure media type
mls mls interface commands
mvr MVR per port configuration
no Negate a command or set its defaults
pagp PAgP interface subcommands
priority-queue Priority Queue
queue-set Choose a queue set for this queue
random-detect Enable Weighted Random Early Detection (WRED) on an
Interface
rmon Configure Remote Monitoring on an interface
service-policy Configure QoS Service Policy
shutdown Shutdown the selected interface
snmp Modify SNMP interface parameters
spanning-tree Spanning Tree Subsystem
srr-queue Configure shaped round-robin transmit queues
storm-control storm configuration
switchport Set switching mode characteristics
timeout Define timeout values for this interface
transmit-interface Assign a transmit interface to a receive-only
tx-ring-limit Configure PA level transmit ring limit
udld Configure UDLD enabled or disabled and ignore global UDLD setting

 

[kythri]

ADB100:

%No module is present

 

[kythri]

Doh. Fired too soon.

There's most definitely a module present in that port...

 

[ADB100]

It looks like either the 2960 doesn't support the module that is installed or it's faulty (it is pushed in right isn't it?). I know Cisco release notes state you need 12.2(25)FX, but I have seen this type of behaviour before with newer hardware revisions of the same products.
I would just upgrade to the latest IOS release (12.2(40)SE) and see if that cures it, it's free so there is no reason not to.....

HTH

Andy

 

[vipergg]

Sometimes these switches come with 2 inputs but it is one port and you have to select the "media type" to select the correct port , if you have the dual purpose uplinks you have select media type rj45 or Fx I believe. You cannot use both ports at the same time.

 

[ADB100]

Sometimes these switches come with 2 inputs but it is one port and you have to select the "media type" to select the correct port , if you have the dual purpose uplinks you have select media type rj45 or Fx I believe. You cannot use both ports at the same time.

By default the media-type on Dual-Purpose uplink ports on the 2960 are set to 'auto-select' and should in theory select the media type that is 'Up'. There are some notes about 100BaseFX SFPs though:

http://www.cisco.com/en/US/customer..._guide_chapter09186a00808752ee.html#wp1829002

HTH

Andy