[rbak-nsp] link-group access on SE-100
Tudor Capatina
Tudor at nedlook.nl
Fri Aug 15 13:25:11 EDT 2014
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<mailto: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<mailto:redback-nsp-bounces at puck.nether.net>] on behalf of Marcin Kuczera [marcin at leon.pl<mailto:marcin at leon.pl>]
Sent: 15 August 2014 19:25
To: redback-nsp at puck.nether.net<mailto: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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