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Speed and Duplex commands missing on 2960

Posted on 2008-06-23
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Last Modified: 2013-11-16
We have a 2960 connected to an ASA via ports 19 and 20, which show autonegotiated to half/100.  The ASA config shows that eth0/0 and man0/0 are both set to speed 100 duplex full.  We try and set the interfaces on the 2960 to the same, and it does not work.

Here is the output:
xxx-xxx-xxx(config-if)#speed 100
                         ^
% Invalid input detected at '^' marker.
xxx-xxx-xxx(config-if)#duplex full
                        ^
% Invalid input detected at '^' marker.

If we go to ANY other interface on the 2960, we can use the speed and duplex commands.
0/19 is trunk
0/20 is access
IOS info below:
Switch   Ports  Model              SW Version              SW Image
------   -----  -----              ----------              ----------
*    1   24     WS-C2960G-24TC-L   12.2(40)SE              C2960-LANBASE-M

Thanks in advance...
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Question by:dcradduck
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5 Comments
 
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Expert Comment

by:kdearing
ID: 21852336
If the switch is connected to an ASA, then I assume this is for internet traffic.
Unless you have a circuit capable of more than 50Mbps, then I would be too concerned about it.
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Expert Comment

by:jjmartineziii
ID: 21855669
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Author Comment

by:dcradduck
ID: 21862190
check out below:  the ^ appears at the beginning of speed and duplex, respectively.  These are the help menus from each respective interface.  This is where we are lost.  How are the duplex and speed commands not listed on gi0/21 but they are listed on gi0/17 (and every other if that is not connected to the ASA)

xxx-xxx-xxx#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
xxx-xxx-xxx(config)#int gi0/21
xxx-xxx-xxx(config-if)#?
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
  exit                    Exit from interface configuration mode
  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
  link                    Configure Link
  lldp                    LLDP interface subcommands
  load-interval           Specify interval for load calculation for an
                          interface
  location                Interface location information
  logging                 Configure logging for interface
  mac                     MAC interface commands
  macro                   Command macro
  max-reserved-bandwidth  Maximum Reservable Bandwidth on an Interface
  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
  rmon                    Configure Remote Monitoring on an interface
  service-policy          Configure QoS Service Policy
  shutdown                Shutdown the selected interface
  snmp                    Modify SNMP interface parameters
  source                  Get config from another source
  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
                          interface
  tx-ring-limit           Configure PA level transmit ring limit
  udld                    Configure UDLD enabled or disabled and ignore global
                          UDLD setting

xxx-xxx-xxx(config-if)#int gi0/17
xxx-xxx-xxx(config-if)#?
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
  down-when-looped        Force looped interface down
  duplex                  Configure duplex operation.
  exit                    Exit from interface configuration mode
  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
  link                    Configure Link
  lldp                    LLDP interface subcommands
  load-interval           Specify interval for load calculation for an
                          interface
  location                Interface location information
  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
  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
  rmon                    Configure Remote Monitoring on an interface
  service-policy          Configure QoS Service Policy
  shutdown                Shutdown the selected interface
  snmp                    Modify SNMP interface parameters
  source                  Get config from another source
  spanning-tree           Spanning Tree Subsystem
  speed                   Configure speed operation.
  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
                          interface
  tx-ring-limit           Configure PA level transmit ring limit
  udld                    Configure UDLD enabled or disabled and ignore global
                          UDLD setting
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Expert Comment

by:jjmartineziii
ID: 21862488
can you do a show run int fa 0/17 and also for 21 and post here?
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Accepted Solution

by:
dcradduck earned 0 total points
ID: 21950218
found out it was because you can't manually set s/d on MDIX enabled ports.
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