Retain Auto on interface but disable Gigabit capicity

[aovp77]

Hi,

I have recently deployed 6xCat4506 with GigabitEthernet interfaces.

My question is; is there a way to leave all the interfaces as auto/auto but disable the ability to negoiate at Gig speed?

I have been unable to find a way to do this ...

Any help much appreciated.

[Prashanth Krishnappa]

If you have a 10/100/1000 card, you can configure it to operate at only 10/100. If you have a gig only card, you cannot.

4507R-A#sh ver | inc IOS

Cisco IOS Software, Catalyst 4000 L3 Switch Software (cat4000-I9K91S-M), Version 12.2(25)EWA, RELEASE SOFTWARE (fc1)

4507R-A#sh mod 4

Mod Ports Card Type Model Serial No.

---+-----+--------------------------------------+------------------+-----------

4 48 10/100/1000BaseT (RJ45) WS-X4548-GB-RJ45 JAExxxxxxxx

M MAC addresses Hw Fw Sw Status

--+--------------------------------+---+------------+----------------+---------

4 000d.28e1.8860 to 000d.28e1.888f 1.0 Ok

4507R-A#conf t

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

W2S-4.8-4507R-A(config)#int gig 4/5

4507R-A(config-if)#speed auto 10 100 <<<------

4507R-A(config-if)#end

4507R-A#

1w1d: %SYS-5-CONFIG_I: Configured from console by console

[aovp77]

Thanks for your reply.

I can not enter this command, could it be IOS specific?

seukoxfasr91#sh mod 2

Mod Ports Card Type Model Serial No.

---+-----+--------------------------------------+------------------+-----------

2 48 10/100/1000BaseTX (RJ45)V WS-X4548-GB-RJ45V JAB0844001B

M MAC addresses Hw Fw Sw Status

--+--------------------------------+---+------------+----------------+---------

2 0012.43cf.6860 to 0012.43cf.688f 2.1 Ok

seukoxfasr91#conf t

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

seukoxfasr91(config)#int g2/18

seukoxfasr91(config-if)#speed ?

10 Force 10 Mbps operation

100 Force 100 Mbps operation

1000 Force 1000 Mbps operation

auto Enable AUTO speed configuration

seukoxfasr91(config-if)#speed auto ?

seukoxfasr91(config-if)#speed auto 10 ?

% Unrecognized command

seukoxfasr91(config-if)#speed auto 10

IOS (tm) Catalyst 4000 L3 Switch Software (cat4000-I9S-M), Version 12.1(20)EW1, EARLY DEPL

OYMENT RELEASE SOFTWARE (fc1)