Sniffing COS and VLAN ID

Had a hard time to find COS bits and Vlan ID in all my captures to prove QOS settings for a Nexus 2k switch.  At the end had to use a hub (a old 10 BaseT Ethernet hub, the reason had to use a mini switch before connect to a Nexus 2k port), a mini switch and a old RealTek NIC to get the capture showing the 802.1q tag.  Later found these url http://wiki.wireshark.org/CaptureSetup/VLAN and http://www.intel.com/support/network/sb/CS-005897.htm that explained almost everything.
Below is a Frame showing the COS and VLAN ID.

And here is the Ethernet Frame with 802.1q fields

find files in current and sub folders and execute one command

example"find . -name "*-confg" -exec chmod 440 {} \;".  worked great!

12209 Forefront TMG requires authorization to fulfill the request. Access to the Web Proxy filter is denied

When setting up Avaya SAL (Secure Access Link) Gateway with Proxy.  The connection to Remote Servers would not establish, and Proxy server (a Microsoft Forefront TMG Server) logs shows many SSL-tunnel both Denied and Allowed messages alternating each other.  Had to open firewall to allow the SAL gateway direct Internet Outbound Access.  It seems to be that Microsoft Forefront TMG having  issue with some 3rd party applications going through the proxy.  It has no problem for Firefox going through the same proxy server..

Cisco Security Manager Upgrade Note

When I am doing CSM upgrade from 3.3.0 to 3.3.1, it requires all pending activities being submitted or discarded.  Tried in File -> Discard, did not work, until realized other users signed in.  Had to Go into Tools -> Security Manager Administration > Take Over User Session.  Basically kill others sessions, and redo the File -> Discard.  The installation went ahead after.

Cisco Wireless LAN Controller Multicast Enabled

Enabled Multicast Mode on the Cisco Wireless LAN Controllers, but still could not hear multi casted MoH.  Turns out that the management interface's default router and dynamic interfaces' default router interfaces need to have "ip pim spare-mode".

MoH multicast from remote site SRST router

Setup Cisco IP phones at a remote site to get the MoH from a file on the WAN router at the site.  It turns out have to use spare-dense or dense mode for it to work on the interfaces between LAN and WAN router.

Multicast Audio 6 seconds delay

Have been trying to setup Cisco CallManager Music on Hold (MOH) to do multicasting on the network.  Had issue with the music takes about 6 seconds to be heard.  It doesn't matter, whether used spare or dense mode on the network.  It turns out a Cisco bug CSCth66667 might have caused it.  After upgrade network core switch (Catalyst 6513) where RP is at to 12.2(33)SXI5, the issue was gone.