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Multi-Site, Multi-VLAN can switches Route?

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  • 1.  Multi-Site, Multi-VLAN can switches Route?

    Posted Mar 19, 2017 02:49 PM

    Hi Everyone,

     

    I have 3 sites.

     

    Site 1  

    HP-2530-48G-PoEP-2SFPP (Main/Core Switch)

    HP 2915 (Access Switch)

     

    Site 2

     

    HP Switch 5412zl (Main Core Switch)

    4 x HP 2530 (Access Switch)

     

    Site 3

     

    HP Switch 5412zl (Main Core Switch )

    4 x HP 2530 (Access Switch)

     

    All of the access switches have fibre links to their core switch.

     

    Site 1 is connected to Site 2 via fibre (trunk link)

    Site 2 is connected to Site 3 via fibre (trunk link)

    Site 2 is using a "router on a stick" to route traffic between VLANs and to the internet

     

    All sites carry 7 VLAN's traffic. There are machines which use static IP addresses and it would be very costly to change their programming, these machines are at all 3 sites and thus the subnets can't be split up so that each site has its own subnet.

     

    I'd love to use the switches for layer 3 routing and also connect site 3 and site 1 (currently the link is disconnected, I've considered STP).

     

    Does anyone know of a way to let the switches do routing or is it not possible?

     

     

     



  • 2.  RE: Multi-Site, Multi-VLAN can switches Route?
    Best Answer

    EMPLOYEE
    Posted Mar 20, 2017 01:17 PM

    Hi, the 2530 switch is an L2 only switch you shoud change it by a 2930F or 3810 that supports L3 features (PBR, RIP, OSPF, static routing and inter vlan routing).

     

    If you want a ring topology you should configure Spanning Tree but it is hard to maintain and can cause loops.



  • 3.  RE: Multi-Site, Multi-VLAN can switches Route?

    Posted Mar 24, 2017 04:24 AM

    Hi Phildawhale,

     

    You need a router/SW Layter 3 for routing each site to other, use local VLAN it will easy to maintain your network infratucture.

    Each site have one VLAN database, and different network ID for routing.



  • 4.  RE: Multi-Site, Multi-VLAN can switches Route?

    Posted Apr 10, 2017 11:44 AM

    Hi Pepe,

     

    Thankyou very much for this. We are considering using one of the core switches as a router, this way if the Sonicwall goes down we would keep internal comms. Does this switch allow inter-vlan routing? I would like to setup a test lab but am unsure on the best program to use for HP Aruba?

     

    Thanks,

     

    Phil



  • 5.  RE: Multi-Site, Multi-VLAN can switches Route?
    Best Answer

    EMPLOYEE
    Posted Apr 11, 2017 01:21 AM

    Hi,

     

    yes, 5412zl should do inter-vlan routing just check if the command 'ip routing' is in your configuration.

     

    If not you have to enable it and then create some interfaces vlan (L3) that operates as the networks default gateways.

     

    #

    interface vlan 10

      ip address 10.10.10.1 255.255.255.0

    #

     

    Note: If you enable 'ip routing' you have to erase the 'default gateway' command on the switch