I noticed in the 15.0 IOS documentation for the Catalyst 2960 switches the 'test cable-diagnostics' command is present and it indicated it works on both GigabitEthernet and FastEthernet ports. That made me wonder if 1) it really does work on the FastEthernet ports and 2) if it tests all four pairs. I suspected it would not given how Fast Ethernet doesn't use all four pairs but I thought I would test it. Here is what I saw:
Switch#test cable-diagnostics tdr interface fastEthernet 0/1
Link state may be affected during TDR test
TDR test started on interface Fa0/1
A TDR test can take a few seconds to run on an interface
Use 'show cable-diagnostics tdr' to read the TDR results.
Switch#
Switch#show cable-diagnostics tdr interface fa0/1
TDR test last run on: March 01 00:03:19
Interface Speed Local pair Pair length Remote pair Pair status
--------- ----- ---------- ------------------ ----------- --------------------
Fa0/1 100M Pair A 0 +/- 15 meters Pair A Normal
Pair B 0 +/- 15 meters Pair B Normal
Pair C N/A Pair C Not Supported
Pair D N/A Pair D Not Supported
Switch#
Pretty much what I expected. Now if I could find a cheap 2960c model with Gigabit Ethernet....
Sunday, October 27, 2013
Wednesday, July 13, 2011
New version of PuTTY is out
http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html
New version of PuTTY (0.61). Some bugfixes and better Win 7 support.
New version of PuTTY (0.61). Some bugfixes and better Win 7 support.
Wednesday, May 25, 2011
Nice online IPv6 tools
Nice online DIG, etc tools for IPv6. I found this today looking for a decent IPv6-capable online DIG page.
Friday, April 1, 2011
Thursday, March 31, 2011
Monday, March 28, 2011
Saturday, March 26, 2011
SIW
I had read about this util a while back and finally downloaded it and...it is pretty impressive - SIW
Just watch out for it wanting to install some goofy toolbar during the install. You can opt out of it. I am not sure if I would run this on a server or not but it makes for a nice desktop/n*book troubleshooting utility.
Just watch out for it wanting to install some goofy toolbar during the install. You can opt out of it. I am not sure if I would run this on a server or not but it makes for a nice desktop/n*book troubleshooting utility.
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