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Subinterfaces - hardware limitation on catalyst 4500-X

Hi there,

 

We are currently building a VSS and our design has L3 subinterfaces however we have hit a major wall while trying to do the following

  •          Create physical subinterface on VSS switch – Fail
  •          Create port-channel subinterface on VSS switch – Fail
  •          Create physical subinterface on standalone switch – Fail
  •          Create port-channel subinterface on standalone switch – Fail

 

Below is the output showing that the option of a subinterfaces seems to be available, but it still doesn’t apply

 

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

Switch(config)#int po1

Switch(config-if)#no swi

Switch(config-if)#no switchport

Switch(config-if)#int po1.1

                      ^

% Invalid input detected at '^' marker.

 

Switch(config)#int po

Switch(config)#int port-channel 1.?

  <0-4294967295>  Port-channel interface number

 

Switch(config)#int port-channel 1.1

                   ^

% Invalid input detected at '^' marker.

 

Switch(config)#int tenGigabitEthernet 1/1

Switch(config-if)#no swi

Switch(config-if)#no switchport

Switch(config-if)#exit

Switch(config)#int tenGigabitEthernet 1/1.?

  <0-4294967295>  TenGigabitEthernet interface number

 

Switch(config)#int tenGigabitEthernet 1/1.1

                    ^

% Invalid input detected at '^' marker.

 

Switch(config)#

 

Here’s the show ver and show module output

 

 

Switch#show ver

Cisco IOS Software, IOS-XE Software, Catalyst 4500 L3 Switch  Software (cat4500e-UNIVERSALK9-M), Version 03.07.00.E RELEASE SOFTWARE (fc4)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2014 by Cisco Systems, Inc.

Compiled Sun 07-Dec-14 22:13 by prod_rel_team

 

 

 

Cisco IOS-XE software, Copyright (c) 2005-2014 by cisco Systems, Inc.

All rights reserved.  Certain components of Cisco IOS-XE software are

licensed under the GNU General Public License ("GPL") Version 2.0.  The

software code licensed under GPL Version 2.0 is free software that comes

with ABSOLUTELY NO WARRANTY.  You can redistribute and/or modify such

GPL code under the terms of GPL Version 2.0.

(http://www.gnu.org/licenses/gpl-2.0.html) For more details, see the

documentation or "License Notice" file accompanying the IOS-XE software,

or the applicable URL provided on the flyer accompanying the IOS-XE

software.

 

 

 

ROM: 15.0(1r)SG11

Switch uptime is 5 minutes

System returned to ROM by power-on

Running default software

Jawa Revision 2, Winter Revision 0x0.0x41

 

Last reload reason: power-on

 

 

 

This product contains cryptographic features and is subject to United

States and local country laws governing import, export, transfer and

use. Delivery of Cisco cryptographic products does not imply

third-party authority to import, export, distribute or use encryption.

Importers, exporters, distributors and users are responsible for

compliance with U.S. and local country laws. By using this product you

agree to comply with applicable laws and regulations. If you are unable

to comply with U.S. and local laws, return this product immediately.

 

A summary of U.S. laws governing Cisco cryptographic products may be found at:

http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

 

If you require further assistance please contact us by sending email to

export@cisco.com.

 

 

*Apr 29 18:56:44.596: %SYS-5-CONFIG_I: Configured from console by console

License Information for 'WS-C4500X-32'

    License Level: entservices   Type: Permanent

    Next reboot license Level: entservices

 

cisco WS-C4500X-32 (MPC8572) processor (revision 9) with 4194304K bytes of physical memory.

Processor board ID JAE191304FG

MPC8572 CPU at 1.5GHz, Cisco Catalyst 4500X

Last reset from PowerUp

1 Virtual Ethernet interface

32 Ten Gigabit Ethernet interfaces

511K bytes of non-volatile configuration memory.

 

Configuration register is 0x2101

 

Switch#

 

Switch#show module

Chassis Type : WS-C4500X-32

 

Power consumed by backplane : 0 Watts

 

Mod Ports Card Type                              Model              Serial No.

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

1    32  4500X-32 10GE (SFP+)                   WS-C4500X-32       JAE191304FG

 

M MAC addresses                    Hw  Fw           Sw               Status

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

1 b0aa.7777.5840 to b0aa.7777.585f 2.0 15.0(1r)SG11 03.07.00.E       Ok

 

System Failures:

----------------

Power Supply:   bad/off (see 'show power')

 

Switch#

 

All we can find is a little note on the release notes:

 

A Catalyst 4006 switch with Supervisor Engine III does not support subinterfaces or the encapsulation keyword on 
Layer 3 Fast Ethernet, Gigabit Ethernet, 10-Gigabit Ethernet interfaces.

 

 

Source: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/XE3-7-0E/15-23E/configuration/guide/xe-370-configuration/l3_int.html

 

I am assuming this restriction applies to this platform but other than that there is nothing specifying we can't do this. Anyone out there has hit the same issue? or can anyone confirm this is an actual platform restriction

 

Thank you

1 ACCEPTED SOLUTION

Accepted Solutions
Highlighted
Hall of Fame Expert

Hi,The 4500 and 4500x series

Hi,

The 4500 and 4500x series switches do not support sub-interfaces.  Only 6500 series support sub-interfaces.

HTH

View solution in original post

1 REPLY 1
Highlighted
Hall of Fame Expert

Hi,The 4500 and 4500x series

Hi,

The 4500 and 4500x series switches do not support sub-interfaces.  Only 6500 series support sub-interfaces.

HTH

View solution in original post

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