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

Шепелев Андрей xamalon4eg at gmail.com
Fri Aug 15 13:47:19 EDT 2014


As i previously said you have to balance packets from the other side so all
the circuits will be homed in different ports. And also use several vlans.
15 авг. 2014 г. 23:24 пользователь "Tudor Capatina" <Tudor at nedlook.nl>
написал:

>  I have used access economical but the result was the same unfortunately.
>
> Best regards,
> Tudor Capatina
> Xenosite BV
>  ------------------------------
> *From:* Dave Bell [me at geordish.org]
> *Sent:* 15 August 2014 20:19
> *To:* Tudor Capatina
> *Cc:* Marcin Kuczera; redback-nsp at puck.nether.net
> *Subject:* Re: [rbak-nsp] link-group access on SE-100
>
>   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
>>
>>
>> _______________________________________________
>> redback-nsp mailing listredback-nsp at puck.nether.nethttps://puck.nether.net/mailman/listinfo/redback-nsp
>>
>>
>>
>> --
>>
>> Marcin Kuczera / Specjalista d/s telekomunikacji, Wiceprezes Zarządu
>> +48 32 440 80 71/ marcin.kuczera at leon.pl
>>
>> Leon Sp. z o.o.
>> ul. Kilińskiego 33d, 44-200 Rybnik
>> http://www.leon.pl/
>>
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>>
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