some Time ago
I found there was a Problem in the Cisco operating system (IOS).
I had to update the Operating System I want to try the new method through the USB.
After the throes of a long time with the routers (C880) discovered a problem in the operating system was the only solution is to update.

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Explain the property Errdisable-recovery at Cisco

In CCNA Level we Konw how the Switch sometimes close the Port if the case has been exceeded the police on the port

such as this Police Port Security, UDLD, Storm Control, which the Switch stops the port directly in case any one exceed this police.

but to we Talk today the way you to activate this port automatic without the intervention of the system administrator.

We all know that the Port Security is a important properties and necessary in any existing network. it prevents the implementation of one of the simplest and most attacks that need to control the network Like attack of the Mac Flooding, and we know also that the Port will allocated for the Port Security is a work of Shutdown the port in if exceeded the number allocated to the mac address, also known as Err-disable Port,
the solution that we have learned previously is to activate the port again by to make shutdown and no shutdown
In the Level of CCIE will find another way called Errdisable recovery, which The more automatic activation port number of a period of time determined by your own
this property is not only for port Security, but also for many of the properties in which you convert the port to errdisable which I talked about previously, such as Storm Control and the UDLD and the BPDU Guard
example:

As you see a long list you can choose any property you activate in the Switch to make the Switch Active the port after a period of time
on our example, how to activate the Errdisable recovery which is found under the name psecure-violation

The commands will be as follows:

first chose is The reason – psecure-violation -and then chose The allotted time to wait of 60 seconds, in other words,in case any one has been exceeded the police the Switch will wait 60 seconds and then will activate the port again,
Show errdisable recovery will find the results, as shown now:

Thank you all

To configuring Cisco IOS H.323 VoIP dial peers to facility call path (and DTMF relay) between PSTN parties and the Cisco Video Communications Server (VCS). Specifically, when the call is tandem routed by the Cisco Unified Communications Manager (CUCM).

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I am a regular face on the Cisco Support Community (CSC) forums and I recently saw a question that is constantly resurfacing on the forum. The question? “Should I use MGCP or H.323 for gateway protocol?” I suppose SIP can be thrown in there as well. I have a canned response to this question and I figured that my response was used so often that I might as well blog about it.

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Using the Cisco Unified Reporting Tool in CUCM 7.x and 8.xx to verify Replication Status:

The Cisco Unified Reporting tool is a web application that can be accessed at the CUCM console and is a quick and convenient way to gather data about a CUCM cluster as well as information that may be helpful in troubleshooting.

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let’s talk about how to add CounterPath’s X-Lite SIP softphone to Cisco Unified Communications Manager (CUCM).

First, I just wanted to add some 3rd party SIP phones to CUCM to start testing feature behaviors.  X-Lite seemed like a reasonable choice as it was free and apparently pretty popular.  Second,  the resources I have found on-line, including CouterPath’s own write up (which is a bit dated) and an article on Cisco’s “community” collaboration site, were just too light on details.  The examples would have things like this

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Configure a Gateway to use SIP and SIP Trunk between Gateway and CUCM

1- Configure the switchtype and clocking on Gateway

2- Configure the T1 PRI Card

 

3- Enable IE delivery for the T1

 

4- Bind signaling and media to the most reliable interface, here we’re using loopback interface of our gateway

 

 

 

5- Configure the incoming dial-peer

 

6-Configure two dial-peers. One to the SUB and one to the PUB and add the session protocol statement (needed for SIP Gateway)

 

7- Now Configure the outgoing dial-peers

 

 

- Login to CUCM

- Device > Trunk > Add New>Trunk Type = SIP Trunk
- Device Protocol = SIP

- Specify correct Device Pool

- Set the Significant Digits filed to 4. Enable Inbound/Outbound Header delivery.

- Set the destination address to the loopback IP of our Gateway.

- Specify ‘Presence Group’, ‘SIP Trunk Security Profile’, ‘SIP Profile’.

- Save and Reset the trunk.

 

Confirm if SIP Service is running/active on our gateway or not?

if need to see SIP Messages on Gateway can enable:

Yesterday I saw on Cisco Support Page a wonderful command  can we use to compare the changes that have taken place between the settings for the
Startup-configuration and the Run-configuration
Today we talk about this Command because of their great utility to discovery some errors of Engineers, which sometimes work on the hardware.

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The proper way to reboot or shutdown a Cisco Unified Communications Manager (Callmanager) server is to issue the “UTILS SYSTEM RESTART” command from the console. Alternatively you can SSH to the server and issue the restart command remotely. You can SSH to your server using any SSH client you wish. Putty is a free, commonly used SSH client. I personally use SecureCRT, however, you must purchase a license. (There is a trial version available as well.)
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During the TSHOOT course of my studies.
I got to know one of features that the Cisco added to the operating system 12.0 after it was one of the things hidden in the command prompt in version 11.0

this command is
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