[j-nsp] loop detection on EX4200

[Kevin Wormington]

Could you not use MSTP or VSTP instead of RSTP?

On 04/21/2014 11:03 AM, Victor Sudakov wrote:
> Chuck Anderson wrote:
>> On Mon, Apr 21, 2014 at 03:20:42PM +0700, Victor Sudakov wrote:
>>> Dave Bell wrote:
>>>> You could try enabling bpdu-block-on-edge.
>>>>
>>>> http://www.juniper.net/techpubs/en_US/junos12.2/topics/task/configuration/spanning-trees-bpdu-block-cli.html
>>>
>>> This is not an edge interface, I need RSTP running on it.
>>
>> Did the multiplexer not loop back RSTP BPDUs?
>
> Thank you for mentioning this. It's a new outlook on the problem. Now
> that I think of it, it probably did not.
>
> I suspect that the multiplexer does not let (some) untagged frames
> through.  That means Juniper's RSTP would not work through it (though
> Cisco's PVST does because it uses tagged frames). That means I should
> expect more serious problems with the multiplexer than an occasional
> physical loop.
>
>>
>> You could enable mac-limit if the number of incoming learned MAC
>> addresses is expected to be lower than the number of outgoing source
>> MAC addresses.
>
> I should think this over. I don't think I can predict these numbers
> straight away.
>