[rbak-nsp] link-group access on SE-100

[Dave Bell]

If you are using multiple vlans, the redback will balance then across the
constituent circuits itself if you are using access economical.
On 15 Aug 2014 17:57, "Tudor Capatina" <Tudor at nedlook.nl> wrote:

>  Hello Marcin,
>
>  The reason why it made sense to me is the need for more bandwidth for
> the subscriber circuits. So the only solution would be to look at an
> upgrade of the platform? Or in my specific case i guess i could split the
> 200 vlan's on two ports - 100 each, it should get me more bandwidth - and
> not use link-group?
>
>  Would it make any difference if i would have the constituent ports of
> the link-group on different MIC cards in the SE-100?
>
>  Thanks!
>
> Best regards,
> Tudor Capatina
> Xenosite BV
>  ------------------------------
> *From:* redback-nsp [redback-nsp-bounces at puck.nether.net] on behalf of
> Marcin Kuczera [marcin at leon.pl]
> *Sent:* 15 August 2014 19:25
> *To:* redback-nsp at puck.nether.net
> *Subject:* Re: [rbak-nsp] link-group access on SE-100
>
>   On 2014-08-15 16:09, Tudor Capatina wrote:
>
> Hi folks,
>
>
> In my opinion - access mode on SE100 makes no sense...
> SmartEdge in this mode sends traffic only via signle link.
> It makes sense when you have 2 linecards and link-group spans between
> linecards.
> Than, in case of linecard crash traffic continues to flow.
>
> Other modes - dot1q - will do load sharing, but you can't have subscriber
> circuits on them (pppoe, clips).
>
> Marcin
>
>
>
> I configured an access link-group between a SE-100 and a Brocade MLX. The
> problem i face is that traffic from the Brocade towards the Redback is
> being split among the links but the other way around, the Redback sends
> traffic using just one link. I have set the link-group both with LACP and
> static but the result was the same.
> I have tried both round-robin / interface-based, created the link-group
> both as access and access-economical,  had the link-group both static and
> lacp - same result was reached.
> I was wondering if this is a limitation of the SE-100 unit or i am missing
> something?
>
> Brocade config and some outputs:
> lag "se100" dynamic id 1
>  ports ethernet 1/1 to 1/2
>  primary-port 1/1
>  deploy
>  port-name "rd1-se100-lag" ethernet 1/1
>  port-name "rd1-se100-lag" ethernet 1/2
>
>  #sh int e 1/1 | i rate
>   30 second input rate: 111758468 bits/sec, 19734 packets/sec, 11.49%
> utilization
>   30 second output rate: 64714241 bits/sec, 11604 packets/sec, 6.65%
> utilization
> #sh int e 1/2 | i rate
>   30 second input rate: 34 bits/sec, 0 packets/sec, 0.00% utilization <<
> not used
>    30 second output rate: 33963516 bits/sec, 10184 packets/sec, 3.56%
> utilization
>
> Redback config and some outputs:
>
>  link-group rd2-lag access
>  encapsulation dot1q
>  dot1q pvc on-demand 1000 through 1199 aaa
>     idle-down 600
>  maximum-links 2
>  lacp active
>  protect-group incoming-port
>
>  #sh link-group rd2-lag det
>
>  Link-Group: rd2-lag, ID   : 27, State : Up
>
> ------------------------------------------------------------------------------
> Ccct count      : 2                              Grouping        :
> LoadShare
> Card Type       : carrier                        Type            : access
> Bindings        : Unbound                        Minimum-links   : 1
> Maximum-links   : 2
> Prot-Group-Type : round-robin
> Internal Handle : 255/22:1:28/1/1/4610
> Description     :
> Constituent Circuits:
>   1. 2/15              (Up  )|  0.13%
>   2. 2/16              (Up  )|  0.00%
>
>  #sh la act
>                 Port    Port          Oper     Recv          Seln
> Lg-id   Port    State   Priority      key      State         State
> ----------------------------------------------------------------------
> 27       2/15   0x3f    32767         27       exchg         active
> 27       2/16   0x3f    32767         27       exchg         active
>
>  Just as a note, non-access link-groups btw the Brocade MLX and the
> Redback unit work fine.
>
> Best regards,
> Tudor Capatina
>
>
> _______________________________________________
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>
>
>
> --
>
> Marcin Kuczera / Specjalista d/s telekomunikacji, Wiceprezes Zarządu
> +48 32 440 80 71/ marcin.kuczera at leon.pl
>
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