SGE2010 switches, VLAN and a port blocked by spanning tree

People,

I have 2 groups of switch.

SGE2010 2 with VLANS is defined as 10,20 and 30

VLAN 10 is the management VLAN and it uplinks to our border router.

VLAN 20 is the workstation VLAN, and all workstations are pointing to the switch as their default GW

VLAN 30 is the ip phone VLANS, and all phones use this as a gateway.

I have a GAP between the switches said, we have a few servers on the ip phone switch that must be accessed by the clients of the workstation and the unique link of 100 MB through the router probably won't be enough.

If I understand correctly, because the switches have different networks on them, a simple shift will not work. I did create a gap and addresses on each side, but it does not appear in this mode, I can block vlan 10 transit to the LAG, with this block I'll end with a logic loop and spanning tree will block the uplinks or LAG itself.

I have attached a picture with a diagram of our current put in place.

Any help/advice would be much appreciated.

John, the 802 standard. 1 initial q indicates there isn't only global tree covering weight independently of belonging to a vlan. It's why you run into problems. Cisco has developed PVST to run on circuits of the ISL. BPMH was originally defined as 802. 1s, which is a combination of 802. 1 q + RSTP. The 802. 1s were later modified to become part of the 802. 1 q.

The person is incorrect, because they cite "because spanning tree is construction by vlan. They are incorrect, because you have to set the properties of tree cover to allow the spanning tree protocols by vlan. Small business switches do not support the owner Cisco PVST and PVST +. However, the SB switches support BPMH which is a standard of the IEEE.

How works the BPMH, it's that you have called proceeding, i.e. each construction covering tree. Then you have the region, SB switches support only 1 region. The region maintains the instances. Basically how it works, you activate the EMU at the global level. Then, you specify the instance. As an example, the vlan 1 is instance 1. VLAN 2 is 2.  This will allow you to run 2 physical wires between switches vlan different without looping. If you use classic STP or RSTP, the least costly path will go to the State to block/cast who works as expected.

-Tom

Tags: Cisco Support

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    3. do I need to adjust the QoS settings to switch to better optimize the VOIP phone?

    Some additional questions about the GS200-18 in general:

    1. do I need to adjust the parameters of the system on the switch time? I am in the Central time.

    2. do I need to adjust the Green Ethernet/Energy Saving parameters or should I stay with the default settings?

    In addition, a couple of "getting started" questions for Cisco:

    1. I registered an account My Cisco. What should I do to register my switch with Cisco and associate with my My Cisco account?

    2. What are the benefits of purchasing a contract of Cisco Small Business support, and how much would it cost the SG200-18 (I ordered it from Provantage)? I'm curious to see if it's worth the money.

    Here's my 'features ':

    Switch: SG200-18

    VOIP phone: Grandstream DP715 and 710 handsets

    Plugged in: Port 17 on SG200-18

    Services: Internet Local (Direclynx)

    Type of connection: 3 m down / 500 k up DSL move to a future wireless connection that will give us higher speeds

    Backend VOIP provider: VOIP Innovations

    Router: Apple Airport Extreme AC model (all Macs and iOS devices and the OS X Server on the network, so I use the Apple router facilitates installation, because is not QoS, trying to QoS and VLAN in the switch)

    Thank you all!

    Hello

    I'll just go to the list again:

    1. sounds good in the port from the drop-down list. So can I just connect the VOIP phone and go with it, correct?

    Yes, just plug in ethernet combo port and it will work.

    2. is not an issue, but I agree, Apple likely isn't compatible QoS or VLAN.

    3. thanks for the info on time/NTP settings. If I wanted to go there and try to configure NTP, how much is it and what I have to do? I want to I can give it a quick try.

    To Setup NTP on the switch is quite simple.  Go to Administration > Time Settings > time system and check the boxes to activate the main clock Source (SNTP)

    Then go to the settings of the SNTP page and add a new entry with the IP address of an NTP server.  There is a list of available NTP servers here:

    http://www.pool.ntp.org/en/

    You must also ensure that the switches Administrative default gateway is set correctly (it must be set the to the default gateway, probably the most convenient airport) so the switch can contact the NTP server.  That option is set under Administration > Interface Management > Interface IPv4.  Change the user-defined default gateway and enter the IP address of your airport (or whatever your default gateway for your network)

    4 sounds good on the Green Ethernet settings. I'll leave it as default value.

    Yes, better to just let those unless you have weird problems with ports disconnect, who can sometimes be caused by Green Ethernet, but if there's nothing like leave it on and save a few watts.

    5 sounds good on does not need to attach my passage to my Cisco account. Should I fill out a form any registration of the product with Cisco before calling support?

    It is not a record for support.  The only thing we need you to do is to create a Cisco account, but you have already done this, so if/when you call in support, you just need your ID for Cisco (also called a CCOID sometimes) and the serial number of your switch.

    6. thanks for the info on the Service contract. Is it something that I would need to order directly from Cisco or I who would get my Cisco partner (Provantage)? After the three years is up, treat yourself to renewal or it just falls? Is there a certain amount of time I have to buy the Service Contract forward make me ineligible?

    Support contracts are purchased through a partner Cisco, or you can get them online for the CDW or Newegg for example.  Basically, you have until the expiry of your current aid for the purchase of a new contract.  For example, right now your switch comes with 1 year of technical support.  You can only buy a contract while it is still active.  Once your three-year contract is about to run out, you're in the same situation.  You can renew it before it expires, however if you leave is up, you will not be able to put a contract on it.  Contracts are not my specialty, however, so you can check with your partner for complete details.

    7. sounds good to how data use VOIP calls. His dislikes too. :-)

    I agree, a voice call is not much traffic.  What you have described you probably don't have problems, although of course I can't guarantee that.

    8. because it is from your provider and they specifically mentioned the VOIP, I would say that you'll be fine here.

    You had also placed on your airport using access point behind a router in small businesses.  I would like to say that it is possible, a large number of wireless routers have an option to put access point only mode or something like that, but you should check with Apple on how to do it.

    Insofar as a Small Business router if you decide to upgrade for the options VLAN or QoS, I would recommend the RV180, or perhaps the RV320.  Two of these models are available with or without wire depending on what you decide to do with the airport.

    I think I got all the questions, but if not just let me know,

    Christopher Ebert - Network Support Engineer

    Cisco Small Business Support Center

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