System and Network Management

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  • 1.  Topology question

    Posted 07-07-2015 04:35 AM

    I have been looking over our topology and have some questions since I wasn't involved in its design.

    We have one location and a number of regions defined all within a campus. We have 2 G650 stacks at our core and thats where our CM is located. We have a G700 and two G430s. The media gateways are not survivable and only have analog and digital media modules. All trunks reside on the G650. The G650, CM, and Media Gateways are all on an isolated LAN connected locally.

    G650s are in Region 1

    G700 is in Region 2

    G430 is in Region 3

    G430 is in Region 4

    CM is in Region 200

    There is an intervening Region 241

    We do use some 96XX H323 VoIP phones located in Region 200 with the CM. No SIP or session manager.

    The G650s have the following cards and I was wondering why not just have the MEDPROs all in Region 1. The Regions are all connected.

    MEDPRO TN2602 01A14 in Region 1

    MEDPRO TN2602 02A14 in Region 3

    MEDPRO TN2302 02B01 in Region 1

    MEDPRO TN2302 02C02 in Region 2 (Why not move this MEDPRO to Cabinet A so there are 2 MEDPROs per cabinet?)

    Region 1, 2, 3, and 4 use Region 241 as intervening but no limits are set.

    Region 200 is setup to connect to Region 1, 2, 3, 4 but directly without using Region 241 and has no limits. I'm wondering if Region 200 should have been confgured to go through Region 241 like the other regions and just misconfigured. Or given our topology why even use an intervening region?

    My main question is the placement of our MEDPROs in regions other then region 1. It might not matter if all the regions are connected anyway. A DCP or Analog endpoing on a G430 wouldn't need a MEDPRO would it?

    Craig

     



  • 2.  RE: Topology question

    Posted 07-24-2015 12:44 PM

    The purpose for MedPro's is VoIP audio access to CM between H.323/IP phones and analog/digital phones and trunks. It provides fax relay and DTMF too. Audio processing for either 80 channels or 320. So basically you should have one in each carrier that has trunks & stations. If you have T1's in 1A along with TN2224's and TN793's there should be a "processor" to handle those calls whether it hands the call off to another extension on your enterprise or off site. Ideally or normal layout wouldn't put TN2602's in slots 1 & 2 but I'm assuming slot 14 was taken by another board. The network regions are just intellgent routing from one network region to another. If this is working now I would leave it unless you're have issues. Normally you would have your IPSI and CLAN in slots 1 & 2 then station, then trunking then MedPro. It'll work the way you have it but the the TDM traffic and BUS traffic are kind of criss crossing to get the jobs done. From what you said 1A is 1 G650 and 2A, 2B & 2C are 3 G650's. If all the other gateways come back to the G650's for trunking and all the network regions are working currently I would say leave it alone. Changing this configuration is potentially hours of work. If you're having jitter or collisions across the network then I'd muck with it.



  • 3.  RE: Topology question

    Posted 07-27-2015 06:07 AM

    Thanks for the reply and the useful information. One thing I did try and change but I backed out. One our Gateways, a G700, is in location 2. But our system parameters are not set to allow multi locations. All other devices are in location 1.

    When I changed the Gateway from locaiton 2 to 1 I got an error when I hit enter.

    H.248 gateway registrations may be denied.

     Our Gateway have no VoIP endpoints or trunks.