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Friday, October 29, 2010

CallManager 7 "Services Provisioning" in Enterprise Parameters "

This parameter is new in Cisco CallManager 7.  After upgrade from 5.1 or 6.1, some of my CallManager sites that had "Service Button" changed and that bringing up Directory no longer works.  Until today I finally accidentally saw this "Services Provisioning" parameter has default value set to "Internal" and other choices are "Both" and "External".  After change it to "Both", Viola, it works again.

Migrating Cisco Wireless Control System to a new host

Have to move a redhat system from a physical box to a vmware host.  I do not want to keep all the data and especially wanted to keep the MAP.  Maybe there is a Cisco "official" way to do a export and import, or restore from the backup.   But I wanted try just copying it over, and in the meant time upgrading to the latest version.  Here are the steps:

1). Stopped WCS service and use tar to backup the whole installation folder of existing WCS
2). untar the backup to the new host in the same path
3). copied /var/.com.zerog.registry.xml to the new host /var/.com.zerog.registry.xml
4). run the latest WCS installation binary, and it worked!  WCS is back and running and upgraded very fast!

Thursday, October 7, 2010

routers2.cgi Page Title

Default is "Systems Monitor", not so meaningful, especially with so many Tabs in my browser.  Found out a variable "windowtitle=..." can be defined in routers2.conf", so now the tab is clearly marked.

Wednesday, October 6, 2010

crazy rrd error "Can't locate auto/RRDs/last.al in @INC"

lots of mine mrtg sites broken,

tons of error message of below when run mrtg

Can't load '/usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi//auto/RRDs/RRDs.so' for module RRDs: librrd.so.4: cannot open shared object file: No such file or directory at /usr/lib/perl5/5.8.8/i386-linux-thread-multi/DynaLoader.pm line 230.
 at /usr/local/mrtg/bin/mrtg line 342
Compilation failed in require at /usr/local/mrtg/bin/mrtg line 342.

and apache error log filled with "Can't locate auto/RRDs/last.al in @INC (@INC contains: ..." message when access routers2.cgi

after googling a bit without finding a olution, decided to reinstall rrdtool from source.  Life is good again:) after


./configure --prefix=$INSTALL_DIR --disable-tcl --disable-python --enable-perl-site-install
make
make install

Thursday, September 30, 2010

ACS 5.2 EAP-Fast works

eap-fast on ACS5.2 tested and working with cisco 7921 phones. fast roaming worked as well.  disconnected antennas on one 1242 AP, and phones stayed up and connected to anothe AP near by.

nexus 5000 switch port for 1G connection

turns out it needs specify "speed 1000", and "sh int status" would not tell GBIC type like in catalyst switches.

version matters

lobbyadmin would not push users to the WLC, keep complaining user exists or controller not responding. turns out the WLC was upgraded, but the WCS is one version behind, so it marked the WLC unreachable.

it is all in the detail

had a p1 case. ha, seems the loadbalancer is getting used to be the blame victim. claim was the loadbalancer probing failed and puts serverfarm out off service. going crazy for few minutes to see what the heck! true web port is open on the server, the probe is a http probe expecting "status 200", hey! "show probe detail" (again it is all in the details!) shows return "status 404". Turns out, newly implemented urlscan rule on the serve was the villain.

Cisco 7206VXR IOS Upgrade Gotcha

Today did a upgrade of Cisco 7206 VXR upgrade to 15.0(1)M3 and found a Gotcha. a IPSec Tunnel would stay in reset status. Had to remove all the nhrp map statements, not neccessary with "ip nhrp map multicast dynamic" anyway, and a "shut" and "no shut" afterwards, it came right up.

Also, found that a frame-relay MFR interface protocol did not come up after reboot. After "shut" and "no shut" of all serial member interfaces, it came right up. But this has nothing to do with IOS upgrade.