Then and coming great network engineer...

What's up guys...

I was hoping you guys could help out me. We had a team of engineers that all leave the company in a position against management. Now I have been launched or promoted in the role of administrator/network engineer. I'm really looking forward to the challenge and am very happy for the opportunity. I've done some self-training and I recently got my CCNA and CCGD and currently my CCNP.

My question is this... I want to make my own; the network and what I mean by that is, I want to change our routers and switches for maximum optimization of our network devices.

Can someone tell me what type of daily maintenance checks should I do on a daily basis to ensure that our network is running optimal?

We also lack EIGRP as our IGP and a MPLS on the WAN network. What can I check to make sure that all circuits give us all the bandwidth?

In addition, I'm not very familiar with the Cisco ASA; How will I know that it works? What should I look for?

Thanks in advance...

I would recommend a good book for you: "The practice of system and Network Administration" by Leduc, Hogan and Chalup. It is full of good framework type of information which is not specific to the provider.

In addition, I would say in general:

1. document your network - physical and logical (Layer 2 and layer 3).

2. know each configuration file and mean it of all lines. Save them! (RANCE is a tool free and open source.)

3. base your performance (i.e. WAN links and use uplink switch) with a basic snmp monitoring tool. (CACTUS is a good OpenSource tool.)

4 send your syslogs to a central tool and know what they tell you - looking messages feel and change any anomaly. On the ASA set your recording to not exceeding level 4 or 5 - level 6 (information) you will tell each connection and tcp udp only and should not be used during troubleshooting. Even if you can not read and understand each syslog at least know the typical daily volume. If typical for your network is 1000 messages a day and then one morning your 5000 find you will probably have to fix something (if your phone is not already ring). (Kiwi tool - paid version a bit more pleasant but free is available too).

Finally... NEVER stop learning. I did this for more than 30 years and almost a day happens that I don't learn something new. Good luck!

Tags: Cisco Support

Similar Questions

  • Why would you once on a network appears in the task like network 4 bar and then it turns into network 6,?

    Why would you once on a network appears in the task like network 4 bar and then it turns into network 6,?

    Network 6 is rated a public network. I want only connected to the internet so is that correct or should it be local

    File and printer for microsoft networks sharing has a check in it, it should be?

    One of my grandsons that started a few days ago and I don't know if it is passed something for xbox?
    TKS

    the only shared printer-shows

    Hello

    The number of network cards you have in your computer?

    For example, it might be a laptop computer with wireless card and wireless card, and each of them receives a different number (the number is just a number it does not mean that there are 4 cards more).

    Whether it's a regular network or a public network, must be able to connect to the Internet.

    Public network: connection that may use Public network such as in a coffee with free Internet house safely.

    Jack, MVP-Networking. EZLAN.NET

  • Whenever I restart Windows 7, I have to turn off and then turn on my network connection get Windows 7 to recognize my wired Internet connection. What is going on?

    I installed Windows 7 Pro on a system newly built using a motherboard Gigabyte Z77x-UD5H, Intel I7 - 3770 K CPU and 32 GB DRAM3, on a SSD OCZ Vertex 3. Everything went well. It is now about three days, since I installed the operating system. I've been adding on software and other general photo editing programs. The Internet would still work. NOW all of a sudden I lost my Internet connection.  Whenever I restart Windows 7, I have to turn off and then turn on my network connection get Windows 7 to recognize my wired Internet connection. What is going on?

    Hello is a network installed by Apple, iTunes more often software Protocol.  If you do not use iTunes * (or other Apple related programs streaming) you don't need.  If you do not use iTunes check if there are any available software updates.

  • I'm having a problem when I open My Documents, the window opens and looks great, I can go to any folder and open it and all is well again

    I'm having a problem when I open My Documents, the window opens and looks great, I can go to any folder and open it and everything is well again, however if I then opened my pictures, and then open a file... some files, less than a second after they are open [and the pictures show] will make the window My Documents to disappear also all the desktop icons disappear the computer will then will reset it self , add all the icons and waiting for me to do something.

    I have no idea where to start looking for this problem.
    I do not have a disk operating system is
    When I try to save an attachment, as in email, Explorer opens, I choose a location to save it, then immediately Expolrer closed! I can't save an attachment

    Hello Philipwk,

    Thank you for your message.  Please provide comments to a few questions so that we can better help you get your problem solved.
    1. are there recent changes made to your system, namely the hardware or the software?
    2 How long present this problem?
    Here are two methods to try, please try in order.  If a system restore fix the problem, do not perform step 2.
    Step 1:
    Run a system restore to before that was the problem.  Please click the link below to get instructions from system restore.
    Step 2:
    Create and test the new user profile.
    Click 'Start' > right click on 'My computer' > select 'manage '.
    Double-click 'Users and groups' > below, select "users".
    In the pane, right click on the space empty and select 'new user '.
    Enter the identification information you will retain and select OK
    Right-click the user account that you just created, and then select "Properties".
    Select the tab "member of" > click on "add".
    Type Administrators in the field and select "check name".
    Once administrators is added, click OK
    Disconnect and connect again your new account, opening pictures with your new trial account.  You can even browse your other photo folder by going to the following location:
    c:\Documents and Settings\ (user account) \My Documents\My images
    If it works, your profile has been altered somehow.  You can then start to copy your data from your old profile to it.
    Please let us know if it did or did not work for you.
    See you soon

    Engineer Jason Microsoft Support answers visit our Microsoft answers feedback Forum and let us know what you think.

  • Moving from a static network to and auto IP network

    I'm running Vista 64 home premium on my lap top. At my office, I have a router linksys running on a static IP address. At home, I use a router linksys on an IP to auto. Windows seems not to be able to tell the two apart, he still thinks it is the router to work and I have to go the IP4 setting and set it to automatic. When I go to the Office I have to go back for the IP4 setting and set it to static and re-enter-the all the info and safety. I'm at whits end with this and any help would be great.

    I set up a network for each at each stop. Even if I select what I want, I still have to change the settings.

    The office is secure and reception is open and those affecting must be changed also.

    Hello

    Since you are using a single network adapter for the configuration of static and dynamic IP addresses, it is not possible to switch the IP addresses automatically on the same network adapter. However, you can use two network adapters and configure the static IP address on the an and a dynamic IP address on the other network card that should solve the problem.

    Alternatively, you can also use a network Ethernet controller to configure the static IP address for the office and a wireless network adapter to configure the dynamic address access to the House.

    Hope the helps of information. Please post back and we do know.

    Concerning
    Joel S
    Microsoft Answers Support Engineer
    Visit our Microsoft answers feedback Forum and let us know what you think.

  • I need help all Windows XP and Windows 7 network.

    OK-that is, I have a computer laptop windows 7 and windows xp desktop and I had to get the network key changed so I could connect with the laptop now the laptop works perfectly and the desktop will not connect. I found an answer here that says go through Control Panel, network, prefrences connections, remove the current 2wire..., then type the new network key and it still doesn't work. so now what should I try?

    original title: I can always connect to the internet!

    OK-that is, I have a computer laptop windows 7 and windows xp desktop and I had to get the network key changed so I could connect with the laptop now the laptop works perfectly and the desktop will not connect. I found an answer here that says go through Control Panel, network, prefrences connections, remove the current 2wire..., then type the new network key and it still doesn't work. so now what should I try?

    You mention the laptop Windows 7 only as a proof that your router works, correct?

    Where "type you the new network key?

    What is the error without paraphrase?

    How and why 'have you changed the network key? Someone else has this do it for you?  What is the person who told you that she had to be changed so that the Office for you to connect to the laptop?

    You always use the 2wire router?  Is what model?

  • Recommendations material and tips for network client 100

    Hello

    We are currently looking at creating a wireless network separated very basic for a client in two adjacent large cabins (3 m of distance) that can support up to 100 clients max simultaneously. It will only be for entrepreneurs to access basic internet, web mail, etc. connections. There is no existing infrastructure to connect to, so let's look at an internet connection for a form, a small switch and the wireless network. Range isn't a problem because they are next to each other it's support for such an amount of connections. I thought that a cluster of 2-4 WAP321 configuration might be a little tense and we could get questions like the number of simultaneous connections gets nearly 100. I also watched a couple of standalone Aironet 1600 s, one in each cabin.

    The network itself is very basic, because it is literally just shared internet access but I need to make sure it is reliable with 100 connected clients.

    I rang pre-sales tech, but they were not mcuh help and sounded like they knew less than I, so any help would be appreciated.

    Concerning

    Harry

    Dear Harry,

    Thank you to the small community of Support Business.

    By checking on the WAP321 data sheet, I see:

    -Recommended user support-up to 32 users connective, 20 active users

    -Active clients by cluster = 80

    I agree with you when you say "could be a little tense and we could get questions like the number of simultaneous connections gets nearly 100", that's why I suggest you go for a business, a range like the Aironet1600 input device you mention.  In any case I would contact you the pre-sales team or support thread-mobility advice and a community helps further.

    Thank you for your time on this matter and please let me know if there is something I can help you with in the meantime.

    Kind regards

    Jeffrey Rodriguez S... : | :. : | :.
    Support Engineer Cisco client

    * Please rate the Post so other will know when an answer has been found.

  • Four years and more: no network, no network, no network...

    Four years and more: no network, no network, no network...

    I have three Windows machines: two 7 running an XP running. I posted here and elsewhere to infinity, bought a new router (Cisco) and am not able to find even the most basic explanation for what is wrong. I am invited to a "user name" and password when I try to access the network (which, in the network and sharing Center, recognizes the other Windows 7 system).

    I DON'T KNOW WHAT IT MEANS "USER NAME". I walked so systematically the computer name, or the name used to identify my primary system (on which I work to establish the network connection). Then I copy and paste the password on this computer. I then - FOR FOUR YEARS - get a big red X and a logon error.

    I am middle-aged and refuses to learn all other operating systems. Microsoft holds my soul online. This isn't a screed; He is really sincere indignation that this issue is made infinitely more difficult to establish that she should NEVER have been.

    Thanks in advance for any help. I don't know even why I keep longer. (Yes, I ran a few offensively childish tool called Fix - It, who said that I have problems of network...)

    Oh, Tommy Stanley, please read again. I did, and the DOS prompt has three entries. The first was a Director. The second was invited. The third was my first and last name.

    BUT WHEN I TRY TO LOG ON TO THE NETWORK, THE NAME OF THE COMPUTER - THAT OF MY NAME ONLY (NOT THE THIRD ENTRY THAT APPEARED ON THE PROMPT BACK - I. E., MY NAME AND SURNAME) TO POSTER. How can I get the Windows security log - on, which lists the NAME of the COMPUTER and asks for the password and eternally rejects the connection to the network, either use administrator or guest or my name and surname? I am the administrator, then why don't the Security Windows log - they say "Administrator"?

    What is the meaning of your last question - the third listed name? If THIS is the name that appears on the Windows log - on, security why it doesn't appear? (Again, I have NO user account with my first and last name).

    You're not * the * administrator.  Since Windows Vista, you can be * a * user administrator-level, but only with some effort would you connect as * the * administrator account.

    If there is a name in this list (from the command, I have given you), it was your first and last name - which * is * a user on your computer.  You can choose to believe that or not – but it's done.

    Your user name * is * of course your name and first name (Yes, user names may have spaces, etc in them.)  It will not just "appear" anywhere... When you connect remotely to this computer to another, you must type in the full username and the password to access all the actions that the user shared...  Or... NOM_ORDINATEUR\NOM_UTILISATEUR.  So, for example if your computername was "ShenansPC" and your username is "Tommy Stanley", then you would need to put the quotation marks around that and your complete username would be "Stanley ShenansPC\Shenan" (the quotes help to manage the space).  -You will manually need to know that when connecting to a share on the computer "ShenansPC" - he does not know the first time for you.

    This will be particularly true for the Windows XP computer - but with the good use residential groups, not so much for between two windows 7 machines.

    Another way to look at the accounts of actual users on this machine...

    Press the "Windows" key and the "R" on your keyboard at the same time key to bring up the dialog box "RUN."

    Type:

    Control userpasswords2

    Click OK.

    It will list users 'Users' tab (display not 'Guest' or 'Administrator' - I think that if they are not activated.)  However, it is not necessarily where I want you to look at.  At the top is another tab (Advanced) - select it and halfway and then locate and click on the button "Advanced".  Which will open the consol lusrmgr where you can select 'users' in the left column and see in the column right or middle, a list of all users on the computer.  See your full legal name here?  That's because it * is * a user.  ;-)

    What do you mean 'network connection '?  You mean on the one hand you have created?  A folder that you shared or a printer?  If you try to manually map or use the browser of network card \\COMPUTERNAME\foldershare or \\COMPUTERNAME\printershare?

    Also, you said residential groups.  I think you should read the following article and follow through it.  It really explains things in detail and would like to get your two machines speaking Windows 7, I think that, at the very least.

    http://www.7tutorials.com/HomeGroup-feature-how-it-works

    You will probably need to reconfigure your homegroup - time two machines have the same OS and are on the same network is not because they just see and communicate without some configuration to make sure.  :-)

    Now - in addition - truthfully to make things easy, I suggest the purchase and installation of some SIN (storage attached network) houses that you essentially drop into your network and then accessed from all the computers on your network (whether with or without a user name or password - what is usually to you.)  Most are fairly simple to connect and give the advantage to have a place to stuff your local computers backup, but also a central location for media files, that you want to share among everyone on your network.  Start with a simple, like the GoFlex Home Network Storage System: http://www.seagate.com/www/en-us/products/network_storage/home-network-storage/ that would require very minimal knowledge (can you plug a cable or two and install the software?) to get there.  :-)

  • Wireless configuration of HP C4780 with new router and Mac (wireless network not found)

    About 10 months ago, I bought a new router. I already had several problems connecting my HP C4780 to my old router, and after setting up the new router, I was totally unable to connect the printer wireless to my router.

    I have reset the system to the printer on my Mac, I have reset the settings on my printer wireless, I downloaded the latest HP software, I've uninstalled and reinstalled the HP software several times and I have had no success. When running through the Setup Wizard, I was able to select the printer and method (wireless network set up by USB) before plugging the USB key. After that, the Setup Wizard says "Device not connected" (DUH!) and the screen select network said simply "no discovery goes Wi - Fi network." I ran the print to the printer from the Network Configuration, and he identified 15 networks (mine included). So, it seems that the Wi - Fi receiver on the printer still works...

    Any suggestions?

    P.S. This printer has been nothing trouble since I got it, and I wouldn't recommend it to ANYONE (I like actually...).

    After attempting to run the installer on my boot camp Windows 7 Ultimate version, I fell at last on an obscure statement in the configuration of the PC software for the c4780. It says to connect the computer to the router using the router WPS button.

    I have reset the configuration on the printer and turned off wireless the wireless, then I pushed the the router WPS button until the blue WiFi light on the c4780 lit. THIS SEEMED to BE THE KEY STEPS to CONNECT THE c4780 to MY ROUTER.

    After that, the configuration and setting up the printer on my Mac using the system of preferences was a piece of cake. Functions of the printer and the scanner work with Mac drivers.

    Problem solved... For now... This printer is so buggy, I have no doubt I'll have similar problems in the future.

  • Random virtual machines after vMotion and Storage vMotion network loss

    Hi all -

    I have a couple of tickets open with VMware and our supplier of SAN, EqualLogic, on this issue.  Since the configuration of our production and DMZ clusters we noticed that the virtual machines will sometimes drop network connectivity after a successful vMotion and Storage vMotion.  Sometimes, although much less frequently, virtual machines also spontaneously lose network overnight.  What happened only a few times.  The strange thing is that the other guests on the VM host are fine - they lose any network.  Actually, I can do no more than 3 computers virtual host to another, and 2 of 3 can switch correctly, so that we lose the network.  The work around?  Simply 'disconnect' from the virtual NETWORK card 'reconnect' and the virtual machine will start the return packets.  I can also switch the VM troubled return to the host State and it will find the network.  I can it reboot and re - win network.  I can re - install the virtual card completely, and she re - win network.

    VMware has seen a lot of mistakes of SAN in our log files in order to update us our SAN firmware to the latest version.  That seems to have fixed that but we still have the issue.  Here are some of the specifications - all environments are virtually identical except for memory:

    Of PowerEdge R810

    NICs Broadcom 5709

    EqualLogic SAN running 5.0.5 F/W

    We use frames.  ESXi is fully patched.  I haven't seen a boss or not, it is only some guest operating system that loses the network, but we are a Windows environment.

    When a virtual machine loses the network, we can not:

    • Ping to it
    • Ping it
    • Ping him at the virtual machines on the same host or vSwitch
    • Ping outside our network
    • resolve DNS, etc..

    I followed some KBs VMware without success, including:

    http://KB.VMware.com/selfservice/microsites/search.do?language=en_US & cmd = displayKC & externalId = 1003839
    http://KB.VMware.com/selfservice/microsites/search.do?cmd=displayKC & externalId = 1002811 (port security is not enabled)

    -All the VMware tools have been updated to the latest version correct and corresponds to the ESXi host
    -Connected to the service ESXi console, I cannot ping the VM problem by name of host or IP address, but I can ping do not affected by the issue of the OTHER virtual machines.  I can also pings the service console.
    -Connected to the troubled virtual machine itself, I cannot ping other virtual machines, I can't resolve host names, I cannot ping by IP.  The machine virtual CAN ping itself by IP, but not hostname.  I cannot ping other virtual computers on the same virtual switch or network by either IP or host name.  I can't ping the vSwitch network management.
    -All vSwitches are configured in the same way and the same.
    -Notify the switches is set to yes
    -There are a lot of available virtual ports
    -We tried the E1000 and VMXNET virtual cards with no difference.
    -All cards are configured to negotiate, but we tried to force individuals speeds as well as with no difference

    I appreciate your help.  I have problems getting anywhere on this issue with the sellers.

    wkucardinal wrote:

    Still having the issue...

    Sometimes, it might be useful to really check that all uplinks VMNIC for all VLAN does work them. Try this is to create a new portgroup on the vSwitch used by your virtual machines on the host of the first, put a test VM on the portgroup, then go into the NIC teaming policy from the new portgroup and select "Override switch command failover."

    Then down vmnic all except one in unused, then only a single VMNIC is active. Then set the portgroup VLAN to a production of VLAN and try to see if we could ping some expected from the different addresses. If it works, then move VMNIC work until unused and move up to another asset. Try again, and this for all the vmnic. If it works, then you have verified that the configuration of VLANS and other settings are correct on the physical switch in the face of this host ports.

    If several VLANs, repeat the process for all other productions VLAN. Then repeat on the other hosts.

    While that may take some time, occurs if everything is properly configured on the physical switches. When occurs a vMotion virtual machine gets a new "Port code" and is assigned to a new outgoing VMNIC. If there is an error of configuration on one or more physical ports that might seem random, but may still happen on VLAN x on y VMNIC. Given that Port ID policy you use indeed spread randomly VMs on the vmnic these problems may be difficult to diagnose. (Make a disconnection of the VM vNIC gives the virtual machine a new port-ID, which it will move to a new outgoing VMNIC, which might seem to solve the problem.)

  • Virtual and Exchange2007 Cluster networks

    Hello

    I'm currently in the planning phase of virtualization and the upgrade of our Exchange 2003 to exchange 2007 and the 2007 on esxi 3.5 version

    I have 2 IBM x 3650 each server is connected to a SCSI Bay for storage.

    The current (already in production) server has 2 network cards, the 2nd (new) Server 6 network adapters.

    For the cluster (2008) GUEST OS, I need to assign 1 to talk on a private IP connection network card and 1 card network to talk to the local network. If the two guests were going to be on the same HOST, then I think it would be easier, but for redundancy they need to divide. I know what I have to do, which is assigned 1 network card PHYSICAL to a virtual network adapter on each server, which will be easier on the new server with more than 2 network cards, but on the NIC 2 would be the server, network adapters are associated, so I still would be able to send the private link to down one of them?

    The servers are connected to a stack of Cisco, and I got 2 configured ports in a VLAN private for private sign, with a port as a trunk so that he can speak both the LAN and the private VLAN.

    I just need a little help in the implementation of the virtual network adapter to the network card physical environment and apply on the HOST servers.

    your

    Dave

    I just need a little help in the implementation of the virtual network adapter to the network card physical environment and apply on the HOST servers.

    Create a Virtual Switch.  Assign a NIC (that is not in use).  Then, assign him VM to the virtual switch.  That's close enough, you can do from the VI Client software, command line not involved, it's all the gui.

  • How to segragate VM of each other AND Management & iSCSI network traffic?

    I want to test how I can keep VM isolated from each other AND the segments of iSCSI network and management... It's just a proof of concept, so I not be using redundant paths.  I want to know how I can keep all my shelter of the attackers 'would '?  that is if one of the virtual machines becomes "compromise" How could I isolate all "would be attackers" to travel to other virtual machines or networks of management/iSCSI?   Is there a way to create each virtual machine in a VIRTUAL LAN on the ESX host? Or is there a better way?

    For the installation of the physical hardware - sounds?

    http://www.gliffy.com/pubdoc/1608095/L.jpg

    TahoeTech wrote:

    "So, to make sure that I understand...". I'll install VMware ESX on

    the physical host machine and then create 3 vSwitches which will be

    related to 1 physical NETWORK card by vSwitch? "

    Since I only need to the DMZ network available to VMS - must - I still 3 vSwitches?

    Yes, one for virtual machines, one for management and one for iSCSI. You may combine up to vSwitches (2) combining management and iSCSI, but it is not recommended.

    The host machine does the iSCSI storage to virtual machines as a "disk"?

    More or less, Yes. When you create a virtual machine, you need to configure the disks for this virtual machine. You will be asked which data source to use, and you choose the iSCSI data store, that you create when you set up the data store and iSCSI.

    The host uses the vSwitches? I thought that the host machine could use physical NETWORK cards... i.e. Teddy 1 would be management and Teddy 2 would be iSCSI, Teddy 3 would be linked to a vSWITCH for virtual machines?

    Yes the host use the vSwitch, after all the console, etc. is a virtual machine its self

    Virtual machines will never see a teddy bear. You want to assign a vNIC to the virtual machine when you create the virtual machine. The vNIC is connected to a group of ports, which in turn is connected to a vSwitch, which in turn is connected to a teddy bear.

    The virtual machines do NOT need access to the networks of management or iSCSI (I don't think)?

    Fix.

    The management network connects to ESX physical HOST (Teddy 1) in order to control the accurate virtual machines?

    The management of the network give you access to control everything via vCenter or the VI client or the command line.

    And the iSCSI network connects to the physical ESX HOST (Teddy 2) where the ESX host will present data warehouses to virtual machines as 'physical' disks correct?

    Yes, it will look like just a physical disk to the VM operating system.

    I guess what I'm trying to understand, or how I see it is that the host ESX is the only machine that has 'see' the iSCSI network?

    The VMKernel manages iSCSI seamlessly. Guests don't need to know anything iSCSI.

    Virtual machines see drives that presents the ESX host? For the virtual machines do not need is access to the iSCSI network (unless I need to install additional storage or drive shared etc...)

    Fix.

    any idea when VI4 is scheduled to be released?

    Rumor is soon. But unless there is there a feature that radically changes your design I wouldn't get too worried about it.

  • Does anyone know why me projected in Logic Pro would be light pulses every now and then and would continue for what seems like an eternity?

    Does anyone know why me projected in Logic Pro would be light pulses every now and then and would continue for what seems like an eternity?

    The white flash indicates logic receives an order of what it can not do... Its like a visual error msg.

    I suspect a device connected to your Mac sends an error msg... or even your keyboard typing accidentally pressed causes the white flash error...

  • N300 wireless Extender - using the Extender Network and the primary network

    Is it possible to use the wireless N300 extender only in areas where it is needed and the main network elsewhere?

    I want to be able to use to boost the signal to a smart TV via an ethernet cable, but want to use my main network in the rest of the House where I can get faster speeds.

    At the moment he seems to want to connect to all devices in the House.

    Hello elies

    If you your extensor different SSID name of your primary network, you can decided which devices connect to the Extender and those which connect to the main network.

    DarrenM

  • I have to often go into users and manage my network passwords to delete the stored credentials. is there a way to stop the ability to save my password?

    I have several users on xp sp3 with ie8 using a single connection, which is non-negotiable. I have to often go into users and manage my network passwords to delete the stored credentials. y at - it a way to stop the possibility of using save it my password box? It is on an intranet and internet content settings explore have no effect.

    Hello fyrman24RRW,

    Thanks for the return of the response.  Here is a link that I hope will help.  If this is how you handle this please let us know. Please let us know status.

    http://support.Microsoft.com/kb/306541

    Thank you

Maybe you are looking for