Re: Juniper vMX on Cisco VIRL

i believe if you are running virl in esxi then you can put interfaces in
promiscuous mode. I have not tried by myself.

HTH

On Thu, Jun 18, 2015 at 1:39 AM, Michael Douglas <michael.douglas_at_ieee.org>
wrote:

> Has anyone successfully run the Juniper vMX on Cisco VIRL?
>
> I've gotten the vMX to boot in VIRL, and I'm using virtio for network
> interfaces. Unicast seems to work between VMs, but I'm getting flaky
> multicast behavior.
>
> Specifically, OSPF hellos don't seem to be making it from the interface to
> the Junos control plane.
>
> Based on this topology:
>
> vMX1-em1-----em1-vMX2
>
> I find tracing OSPF hellos via Junos, that each vMX only sees their own
> outbound OSPF hellos onto the wire. However, if I drop back into the
> FreeBSD shell and run tcpdump, I can see hellos inbound and outbound. And
> actually, by running tcpdump simultaneously on both hosts, OSPF establishes
> an adjacency. It appears if the interface is not in promiscuous mode the
> Junos control plane doesn't see the multicast hellos.
>
> I found a situation noted in someone's install guide for an Olive image,
> although it refers to a different virtual nic type.
>
> https://www.packetmischief.ca/2006/07/05/installing-olive-7-1/
>
> "Multicast Traffic doesnb t pass on Intel GigE Cards
>
> The GigE cards donb t seem to pass multicast traffic. Running monitor
> traffic interface shows zero received mcast packets. This will obviously be
> an issue when running any routing protocol that uses multicast for HELLOs,
> etc.
>
> There is somewhat of a workaround (at least with the fxp cards) and that is
> to put the interface into promiscuous mode by either running tcpdump(8)
> from the shell or using the command monitor traffic interface."
>
>
> Has anyone successfully used VIRL to run vMX topologies? Was anything
> similar encountered?
>
>
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Nadeem Rafi
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