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

[Olivier Benghozi]

Hi Marcin,


It will work with several ports of the same card and on other cards.


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> 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 ?

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