#7 Strange behaviour when retrieving port on Cisco Catalyst 4500 IOS Version 03.04.00.SG

[Anonymous]

Hello,
When running switchmap on these switches, for 1 port we have 3 entries: the "normal" one, a controlled one and an uncontrolled one, below a sample output:
Gi1/46--Controlled routed Active 1G unknown GigabitEthernet1/46--Controlled
Gi1/46--Uncontrolled routed Active 1G unknown GigabitEthernet1/46--Uncontrolled
Gi1/46 2 Active 1G full
For me, only the last one should be there.
Thanks for you help

[Pete Siemsen]

I haven't seen this problem before. Could you email me a screenshot of the SwitchMap window? My email is siemsen@ucar.edu

[Anonymous]

I've seen the same issues with our catalyst 4500s, if you need any additional info. We also see similar views with our other SNMP based tools for this platform.

[Anonymous]

MACsec 802.1AE

• http://www.ieee802.org/1/files/public/MIBs/IEEE8021-SECY-MIB-200601100000Z.txt

  Two different interfaces ’Controlled Port’ and ’Uncontrolled Port’,
  are associated with a MAC security entity (SecY),
  and that for each instance of a SecY, two ifTable rows (one for each interface)
  run on top of an ifTable row representing the ’Common Port’ interface

• ftp://ftp.cisco.com/pub/mibs/supportlists/cat4000/cat4000-supportlist.html

  MIBs supported in IOS XE 3.3.0SG - Sup7-E, Sup7L-E, and 4500-X & IOS 15.1(1)SG
  New MIBs introduced in this release: IEEE8021-SECY-MIB.my

• I have only seen the additional interfaces on X4748 modules (requiring SUP7),
  not with older modules

[Pete Siemsen]

Here's a fix for this specific problem, which I'm seeing in my Cisco 4510 switches. This is a hack until I get the next version of SwitchMap out the door. This change will cause SwitchMap to stop outputting rows for "Controlled" and "Uncontrolled" ports.

Find the file named SwitchUtils.pm. Edit it, and in the "IsAncillary" function (defined on line 420), add these two lines before line 442:

    ($PortName =~ /--Controlled$/)   or
    ($PortName =~ /--Uncontrolled$/) or

I made this change in the latest version of SwitchMap, so it'll be in the next release.