[rbak-nsp] SE400 link aggregation problem with load balancing

[Frans Legdeur]

Elma,

As you tried to get this working over an aggregated Ethernet link, would it
help to configure separated /30¹s over each link and use ECMP to balance the
load across this trunk?
You need to have equal routes over each link, ospf can help you to
accomplish that, or a few statics will do as-well.

It seemed that link aggregation is stuck somewhere in your system.


Kind regards,


Frans.




From: "Elma K." <elmicak at hotmail.com>
Date: Thu, 21 Jan 2010 06:37:50 +0000
To: <ripleydotnet at gmail.com>
Cc: <tanan.satayapiwat at ericsson.com>, Frans Legdeur
<frans at falco-networks.com>, <redback-nsp at puck.nether.net>
Subject: RE: [rbak-nsp] SE400 link aggregation problem with load balancing

Unfortunately, there are no commands for lacp protocol under link group...
Possible because old SEOS version.


Subject: Re: [rbak-nsp] SE400 link aggregation problem with load balancing
From: ripleydotnet at gmail.com
Date: Wed, 20 Jan 2010 12:12:44 -0700
CC: tanan.satayapiwat at ericsson.com; frans at falco-networks.com;
redback-nsp at puck.nether.net
To: elmicak at hotmail.com

make sure you enable lacp active in the link-group.

On 2010-01-20, at 8:53 AM, Elma K. wrote:

> Source IPs on SE400 side are from the pool configured on that device, and
> destination IPs are various (Internet traffic for our pppoe subscribers)...
> Link IPs should not have meaning in this case, because link is just for
> transit traffic. Also, source and destination IPs should be different, because
> it is the most unlikely that this traffic is from just one subscriber sending
> to just one IP...
> 
> 
> 
> From: tanan.satayapiwat at ericsson.com
> To: elmicak at hotmail.com; frans at falco-networks.com; redback-nsp at puck.nether.net
> Date: Wed, 20 Jan 2010 10:13:52 -0500
> Subject: RE: [rbak-nsp] SE400 link aggregation problem with load balancing
> 
> Frans mean the source and destination IP of the packets traveling through the
> link. It does not have to be IP address of the link itself since the traffic
> can be transit traffic.
>  
> Tanan
> 
> 
> From: redback-nsp-bounces at puck.nether.net
> [mailto:redback-nsp-bounces at puck.nether.net] On Behalf Of Elma K.
> Sent: Wednesday, January 20, 2010 4:10 PM
> To: frans at falco-networks.com; redback-nsp at puck.nether.net
> Subject: Re: [rbak-nsp] SE400 link aggregation problem with load balancing
> 
> The link is with /30 mask, so I can not take just 1 higher IP... Maybe I can
> change both IPs on this link,
> but I have to check this with a coleague that works on the other device, to
> see if this is possible for him.
> 
> I will let You know when I get this info. In the meantime, if there is any
> other idea, I would appreciate it.
> 
> Regards
> Elma
> 
> 
> 
> 
> Date: Wed, 20 Jan 2010 16:03:25 +0100
> Subject: Re: [rbak-nsp] SE400 link aggregation problem with load balancing
> From: frans at falco-networks.com
> To: elmicak at hotmail.com; redback-nsp at puck.nether.net
> 
> Hi Elma,
> 
> Do you by any change use the same IP address as destination and/or source?
> The way the balancing works is based on something like source IP plus
> destination IP plus destination port, that will stick to the same physical
> link.
> I ran into this problem once, solved the test by adding another source 1 IP
> address higher and that took another link.
> 
> I don¹t know if you have the same kind of trouble there.
> 
> Kind regards,
> 
> 
> Frans.
> 
> 
> 
> From: "Elma K." <elmicak at hotmail.com <http://hotmail.com> >
> Date: Wed, 20 Jan 2010 14:57:15 +0000
> To: <redback-nsp at puck.nether.net <http://puck.nether.net> >
> Subject: [rbak-nsp] SE400 link aggregation problem with load balancing
> 
> Hello.
> 
> I have SE400 connected to other device, and I have configured link aggregation
> on SE400, 
> everything works fine except load-balancing from Redback's side...
> Traffic that is going from redback is not balanced on link group members, it
> is gong only on one port.
> 
> I guess there must be some configuration to change the way the device is doing
> this load balancing
> between group members.
> 
> My device is with SEOS-2.6.7 (no chance for upgrade, unfortunately)
> and the config is like this:
> 
> link-group hsiUplink-2PCh ether
>  bind interface uplink-2 hsi
> 
> port ethernet 1/5
>  link-group hsiUplink-2PCh
> !
> port ethernet 1/7
>  link-group hsiUplink-2Ch
> !
> port ethernet 3/12
>  link-group hsiUplink-2PCh
> !
> 
> Could anyone help me, please?
> 
> Best Regards.
> Elma
>        
> 
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