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I have an application that requires multicast across our MPLS WAN, and had been using GRE tunnels to facilitate this until recently when I replaced some aging edge routers with HP L3 switches. To my dismay it appears that these switches (Procurve E3800-24G-2SFP+) do not offer GRE in any way.

(I didn't source them, Layer 8 got a 2-for-1 deal from a fast talking reseller!)

Are there any alternatives for tunneling multicast across MPLS? Our WAN provider isn't likely to add support for mBGP just for me. :)

  • What kind of service is your WAN? Is it just point-to-point between your MPLS devices? Or are you the CE of their L3 MPLS VPN service? – ytti Jun 13 '13 at 21:00
  • Sorry, should have clarified that. It's a full mesh L3 MPLS VPN service. – Network Canuck Jun 13 '13 at 21:06
  • Quite many support multicast in L3 MPLS VPN service, either NG-MVPN or RFC6037, I would confirm first that this is not possible. – ytti Jun 13 '13 at 21:11
  • It's been confirmed, the provider will not allow multicast. – Network Canuck Jun 13 '13 at 21:35
  • Did any answer help you? if so, you should accept the answer so that the question doesn't keep popping up forever, looking for an answer. Alternatively, you could provide and accept your own answer. – Ron Maupin Aug 8 '17 at 9:49
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You need a router.

The HP 2520G is a Layer 2 managed switch, and has no Layer 3 capabilities. This is highlighted in the features tab on hp.com and in the 2520G feature support matrix

If you're not able to get funding for a router, maybe you could power up a Vyatta VM at the ProCurve site?

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  • Had the wrong model of switch in the original question. These are actually E3800-24G-2SFP+ Layer 3 managed switches. – Network Canuck Jun 14 '13 at 14:58
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For GRE support , HP has the exH3C based A5800 switches (take a look at the release notes: https://h10145.www1.hp.com/downloads/SoftwareReleases.aspx?ProductNumber=JC103A). The E3800 is based upon HP´s "old" Procurve design. You can get the A5800 series pretty cheap as refurbished "HP Renew" with HP warranty left.

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