Campus Switching and Routing

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New Contributor
Posts: 4
Registered: ‎03-19-2017

Multi-Site, Multi-VLAN can switches Route?

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?

 

 

 

Occasional Contributor II
Posts: 11
Registered: ‎04-04-2016

Re: Multi-Site, Multi-VLAN can switches Route?

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.

*
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Contributor I
Posts: 24
Registered: ‎10-31-2016

Re: Multi-Site, Multi-VLAN can switches Route?

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.

New Contributor
Posts: 4
Registered: ‎03-19-2017

Re: Multi-Site, Multi-VLAN can switches Route?

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

Occasional Contributor II
Posts: 11
Registered: ‎04-04-2016

Re: Multi-Site, Multi-VLAN can switches Route?

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

*
If it helps flease add Kudos
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