[rbak-nsp] link group on 4x10G card (SE600/1200) for dot1q purpose

[Marcin Kuczera]

On 2017-10-20 16:46, Olivier Benghozi wrote:
> Hi Marcin,
>
>
> It will work with several ports of the same card and on other cards.

New issue discoverd, link-group dot1q - adding 3rd 10G port from 3rd
linecard.
OSPF flapping, for some reasons even without BFD it doesn't work properly.

Anyone using similar config ?

Regards,
Marcin



>
>
> About load balancing:
> service load-balance ip layer-4
> service load-balance link-group bridging layer-4
>
> is the way to go.
> It will probably try to keep the traffic on ports of the same card if
> possible, I guess (not a pure hash function).
>
>
> About BFD on LAG:
> 1) possible, but it will really use only one link by default with
> standard classic BFD (won't protect the LAG components individually,
> but only the virtual link) ; that is, one single standard BFD session
> is used.
> 2) it can protect the LAG components by using " link-group
> multiple-session" in the bfd interface config, but it's proprietary to
> SE (not standard, not compatible with Micro BFD sessions of RFC 7130)
>
>
>
> In link-group dot1q mode, each vlan is configured with pvc dot1q
> command under the link-group, there are no "one separate link-group
> per vlan" (even if "show link-group" isn't very clear).
> Technically there's one circuit inside the SE per physical link per
> vlan (in show circuit).
>
>
>> Le 20 oct. 2017 à 15:34, Marcin Kuczera <marcin at leon.pl
>> <mailto:marcin at leon.pl>> a écrit :
>>
>> hello,
>>
>> is there anyone here that uses link group on SE600/1200, software
>> 12.1.1.x ?
>>
>> - need to check if it should work if link group contains 2 ports from
>> same card
>>
>> - need to check if it should work if link group contains 2 ports from
>> different cards
>>
>> - above need to do like round-robin or some hashing to distribute
>> outbound traffic quite equally
>>
>> - if BFD is possible in such cases ?
>>
>>
>> - is it normal that in link-group dot1q mode - for every vlan separate
>> link-group is automatically created ?
>

-- 

Marcin Kuczera / Wiceprezes Zarządu / CTO
+48 32 440 80 71/ marcin.kuczera at leon.pl <mailto:marcin.kuczera at leon.pl>

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