Cisco 4507 stuff

Find a mac address on a switch
show mac-address-table | include XXXX

XXXX= last 4 digits of the mac address of the device you re looking for.  I find that easiest, but you can search bigger range.  Cisco doesn’t use xx:xx:xx format
Cisco uses xxxx.xxxx.xxxx


Find summary of port
show int status | include xxxx


You can get additional detail about the port using
show running-config interface gigabitEthernet X/XX


Default the port configuration (from config)
default interface gigabitEthernet X/XX


NON 802.1X port config example

interface GigabitEthernet X/XX
description XXXXXXX
switchport access vlan XX
switchport mode access
switchport voice vlan 90
qos trust cos
auto qos voip trust
tx-queue 3
   bandwidth percent 33
   priority high
   shape percent 33
spanning-tree portfast
service-policy output autoqos-voip-policy
shut
no shut
end

802.1X port config example

interface GigabitEthernet X/XX
description 8021X_Enabled
switchport access vlan 66
switchport mode access
switchport voice vlan 90
qos trust cos
authentication event fail action authorize vlan 202
authentication event no-response action authorize vlan 202
authentication host-mode multi-host
authentication port-control auto
authentication periodic
auto qos voip trust
dot1x pae authenticator
dot1x timeout quiet-period 5
dot1x timeout server-timeout 10
dot1x max-reauth-req 1
storm-control broadcast level 20.00
storm-control action shutdown
tx-queue 3
   bandwidth percent 33
   priority high
   shape percent 33
spanning-tree portfast
spanning-tree bpduguard enable
service-policy output autoqos-voip-policy
shut
no shut
end

Configure a trunk
interface gigabitethernet x/xx
switchport trunk encapsulation dot1q
switchport mode trunk
description XXXXX
 switchport trunk native vlan 100
 switchport trunk allowed vlan 10,50,60,66,67,100,110,130
 qos trust cos
 auto qos voip trust
 tx-queue 3
   bandwidth percent 33
   priority high
   shape percent 33
 service-policy output autoqos-voip-policy

RESTART SWITCH REMOTELY
reload

CONFIGURE IP OF SWITCH

configure terminal
interface vlan XX
ip address 192.168.99.11 255.255.255.0
no shutdown
exit
ip default-gateway 192.168.99.1
end
copy running-config startup-config

CHANGE NAME OF CISCO SWITCH
hostname Corp-Training

configureVLAN

Conf t
Vlan #
State active
End
Write
Or copy run start

Add unifi node to controller

1. Start a ping in a cmd prompt window. This will help you know when controller is up or down.

2. Login into UNFI device using putty via SSH.  (default is ubnt/ubnt) but if device is already acquired, System will give it custom password:

a. log into controller gui.
b goto 'settings button' on the lower left side
c. goto DEVICE AUTHENTICATION
d. click on the the picture of the 'eye' to show the controller password.
e. note the user name that is assigned then you can ssh to the controller using the IP of the controller and the user/password shown on that page

3. From command prompt send the command:  This will reset the configuration of the node back to factory default.

syswrapper.sh restore-default

Controller will now reboot.

4. Once controller is available again, SSH back in.  the user/password will now be " ubnt/ubnt"

5. Send the following command: Alter the "ip-of-controller" to the ip of your systems controller

set-inform http://IPofCONTROLLER:8080/inform
(example: set-inform http://10.1.100.100:8080/inform)

6. The device will appear ready for "pending adoption" in the controller. Click Adopt.

7. Wait for the 'Adopting' status to appear on the UniFi controller, then issue the set-inform command again.

8. The device should now change to a 'Provisioning' status and then connect shortly thereafter.

If the adoption failed, check this blog for "Unifi Adoption Failed" procedure that might work for you.

DIY XLR ethernet cable audio snake on standard (unshielded) Cat5 Cat5e Cat6 cable

Commonly advertised products and solutions of this type demonstrate 4 channels of XLR audio on single Ethernet wire, but require shielded Ethernet to properly work (specifically maintaining proper grounding), which is specialized and not always readily on hand.  

The trick used to maximize the number of audio channels on an Ethernet cable is through the sharing of the ground connection for each of the individual channels.  If you use regular Cat5/6 UTP (unshielded twisted pair) cable, you won't have a proper ground connection to each device and can cause a signal quality issues.

This article will focus on using un-shielded Ethernet cable to get THREE (3) analog audio channels, and maintain a common ground to all connections.  This wire type is the most common type of Ethernet cable used basically everywhere.

• Get 3 balanced analog audio channels on Cat5/6 Un-shielded Ethernet wire
• Works with phantom power
  
• Works with ClearCom
• Audio is clean, no buzzes, no hums, no distortion, no latency  
• Solid or stranded core (stranded less prone to breaking if coiled often)
• 1000+ foot distance is possible.

The main differences between UN-SHIELDED and SHIELDED Ethernet cable: 

1. Three channels vs Four.
   UN-Shielded Ethernet lacks an additional wire allowing for a 4th channel.
   
   
2. COST. 
   UN-shielded Ethernet is inexpensive and found everywhere 

But we need the shield for audio quality right?

No. Balanced audio interference rejection result from the positive (in-phase) and negative (out-of-phase) relationship of the analog signal as it travels together over a cable pair.  The shield (usually metal foil) found in some balanced mic cable provide rejection enhancement for certain situations.  

Click for Balanced audio in Detail

Solution A - TWO (2) channels using unshielded ethernet cable.

We can easily just connect an XLR pins on either end of the Ethernet wire and get 2 channels of audio.  XLR uses 3 wires for channel, and Ethernet has 8 wires, so that will easily get us 2 channels as shown in this diagram.

XLR over Cat5 using standard wiring methodology (2 unused wires)

Solution B - THREE (3) channels using unshielded ethernet cable.

In this example each positive and negative wire is connected to orange, green or blue.  But now the ground wires are all going to the same brown wire on either side of the Ethernet cable.  This is how you get 3 channels of audio when you only have 8 wires, when you normally would need 9.

Wiring Diagram

In this diagram, the brown/white stripe wire is being used for common ground for all the mics. 

In this example, the extra brown wire can bei either be ignored or attached together with the the brown/white wire to double it up.

Channel 1 blue pair 

Channel 2 Orange Pair 

Channel 3 Green Pair 

Ground Brown pair 

SHARED GROUND FOR ALL 3 CHANNELS

A variation is assigning one channel its own dedicated ground wire as you have two to use.

 SHARED GROUND FOR 2 CHANNELS and 1 CHANNEL DEDICATED

Useful if channels are going to a different location or you hare having a ground hum being introduce by a connected device.  You can have 1 channel isolated from the other two.

Implementation methods

Here are a few termination examples that could be used, but with an understanding of the wiring diagram, there are many possibilities that could be explored.

An efficient no soldering way to build pigtails using an RJ45 breakout box connected to the XLR connectors.  The one shown is a "female" adapter.

Use standard Ethernet cable with RJ45 ends to link each end of the snake.

In the wiring diagram below note that considerations for the "split pair" wiring that a properly built RJ45 Ethernet cable needs to follow.  Connect the Positive, Negative and Ground wires from each XLR connector to the terminal adapter according to the diagram shown.

IMPORTANT!!! "Hey, why is channel 2 wires not seem to be in order in this picture?"

There is an important wiring methodology that needs to be considered when using Cat5 cabling.  A properly built RJ45 Ethernet cable uses pin groups of  

ORANGE PINS: 1 & 2

GREEN PINS: 3 & 6

BLUE PINS: 4 & 5

BROWN: PINS 7 & 8

Here's a closeup

In this example, the RED XLR cable, made up of a red, white and ground wire, are going into pins 1&2 in the adapter

The ground wire (black shrink wrap) is going into pin #7.

Possible Applications

Send audio through preexisting Ethernet infrastructure allowing connections between locations allowing analog signals via the in house wires.  

Must NOT pass through any electronic equipment, direct patching between patch bay ports is ok.

In a situation that use this method all the Ethernet jacks were patched directly by IT staff.  Essentially a super long Ethernet wire cable, but not limited by the Ethernet length of 300 foot normal limitation.  A 1000' or more long connection in many cases is achievable.