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M4300 SFP Port Trunking Issues

viknesh
Aspirant

M4300 SFP Port Trunking Issues

Hi 

 

Planning to get M4300 switches for pabx implementation for multi campus environment.

So incoming trunk line are both PSTN and E1 PRI ISDN. We have few buildings that we need to connect via netgear switches. is there any manual that shows how to enable PSTN & E1 PRI ISDN routed thru the netgear 4300 switches to each campus building?

Scenario as below and as attached

5 buildings, each has 5 netgear M4300 switch. At each location, the M4300 switch is connect to ip pabx switches via Cat6. Then the ip pabx switches are patched back to MDF krone tags to enable connection to phone users. See attached diagram. Design is not using VoiP calls but traditional PSTN and E1 PRI ISDN.

Model: M5300-28G3 (GSM7328Sv2h2)|ProSAFE 24-port Managed L3 Gigabit Stackable Switch
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schumaku
Guru

Re: M4300 SFP Port Trunking Issues

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schumaku
Guru

Re: M4300 SFP Port Trunking Issues

Hi,

Confusing information. 

 

The Netgear switches are Ethernet switches with Ethernet interfaces only. The data links between the switches you intend to use are PSTN (two wire) and E1 (2 Mb) based or there will is (or will be) fibre available between the buildings to establish some or multiple 10 GbE links at least?

 

To make the IP PABXes communicate I would use VoIP.

 

 

Please clarify your project for us.

Message 2 of 8
viknesh
Aspirant

Re: M4300 SFP Port Trunking Issues

Hi

 

Yes, we intend to use PSTN (two wire) and E1 (2 Mb). Customer current uses, 128 PSTN and 8 E1. This is a benchmark project as this is the 1st ever time client from this segment deploying 10G to interconnect. If we successfully complete this project without connectivity issues then we have close another 30 customers.

 

Yes, the buildings will be connected via LSZH 6 core Singlemode fiber link to each campus buildings from MAIN MDF. That is to say each building campus will have 6 core single mode fiber link. We plan to deploy the switches one at each building with Netgear 10G SGP module to establish 10 GbE links at at each building.  We planned to deploy

  • M4300-24X24F  in MAIN MDF 
  • M4300-12X12F in 15 building campus
  • M4300-8X8F in 1 building campus
  • Transreceiver - AXM762
  • DAC

Maximum distance between buildings are within 990 meters.

Message 3 of 8
schumaku
Guru

Re: M4300 SFP Port Trunking Issues

... the more confused I am. One one hand, you design a 10 Gb backbone (potentially a little bit a "thin" channel) over fibre. On the other hand, do you expect a two wire connection of an E1 or a POTS ging direct onto the switch to be tunneled? Or are these E1 and POTS on the IP-PABX and the IP-PABXes are to be linked up over the IP network? Assume it's the later one ... depending on the CODEC used fot the IP-PABX interlinks, wild calulating 64kb per POTS and the obvious 2048Mb for the eight E1, this does sum up 25Mb. Perfectly sufficient.

Message 4 of 8
viknesh
Aspirant

Re: M4300 SFP Port Trunking Issues

Hi 

 

Sorry my fault i should have explained better. My bad, sorry

 

1. E1 ISDN / PSTN will not connect directly to Netgear switches.

2. Instead E1 ISDN/PSTN will connect to iP Pabx directly. So pabx modules/gateways/slot cards will be connected to Netgear switch via RJ45 cable.

3. The aim is, Pabx to do the signalling while netgear switch to carry that signals.  

4. So the link will be established between main building and campus building via fiber cable thru interconnecting netgear switches. 

 

Network design 2.png

See attached diagram and also pdf file as attached. both convey same thing.

Message 5 of 8
schumaku
Guru

Re: M4300 SFP Port Trunking Issues

Ok, then your set-up does make perfect sense. Are there plans to use the same network for data and voice?

Message 6 of 8
viknesh
Aspirant

Re: M4300 SFP Port Trunking Issues

Hi

 

The pabx system will also operate UCS (Unified Communications) which carry data to desktop to few (around 50) PC's for contact center operators. So yes, the switch should able to segment voice and data. Large part of it will be voice. To do this, possible to create Vlans to segment it?

 

Viknesh

Message 7 of 8
schumaku
Guru

Re: M4300 SFP Port Trunking Issues

Of course, yes.

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