Re: [casper] [ROACH2] tap-start invalid

2017-06-02 Thread Marc Welz 
On Fri, Jun 2, 2017 at 2:10 PM, Amit Bansod  wrote:
> Hi Marc,
>
> I am trying to subscribe to a multicast group (receive data). How then
> can I configure the core to send an IGMP request ?

You are probably looking for ?tap-multicast-add. Note that you can
only invoke that once
you have brought up the tap interface with ?tap-start and related.
There should be
a ?help command which provides an overview.

regards

marc

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Re: [casper] [ROACH2] tap-start invalid

2017-06-02 Thread Marc Welz 
On Fri, Jun 2, 2017 at 9:53 AM, Amit Bansod  wrote:
> Dear All,
>
> I am getting this message on giving tap-start on ROACH2:
>
> ?tap-start tap0 gbe0 239.10.1.64 7148 01:00:5E:0A:01:40

Hang on - you are configuring your local interface to be a multicast address.

That doesn't work - an interface needs to have a *unicast* address, it
then *sends*
to a multicast address.

regards

marc

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[casper] [ROACH2] tap-start invalid

2017-06-02 Thread Amit Bansod 
Dear All,

I am getting this message on giving tap-start on ROACH2:

?tap-start tap0 gbe0 239.10.1.64 7148 01:00:5E:0A:01:40
#log error 1496397035379 raw unable\_to\_configure\_tap\_device
#log error 1496397035381 raw
failed\_to\_set\_up\_tap\_devices\_tap0\_on\_register\_gbe0
#log error 1496397035381 raw unable\_to\_initialise\_tap\_component
!tap-start invalid

tap-info does not give any information on the same.

The manual configuration works fine but "tap-start" now failing even for
the older working configuration. Anybody faced this issue before ?

Cheers,
Amit



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