Transparent Failover support with Nortel Alteon Load balancers??

Transparent Failover support with Nortel Alteon Load balancers??
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Subject Author Date
Transparent Failover support with Nortel Alteon Load balancers?? qazmlp1209 10-19-2006
Posted by on October 19, 2006, 4:53 am
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I am currently checking the usage of Nortel Load balancer:'Nortel
Alteon' 2208/3408.

I would like to know whether these load balancers provide the support
for Transparent Failover.

Assume there are 2 Alteon servers configured in Active/Hot Standby
redundancy mode. A client has setup a session with the active Alteon
server. What happens to the session, connection, when this Alteon
server fails? Will the Failover to the other Alteon server, be
transparent to the Client? How does it work?
Is 'VRRP Active-Standby Virtual Server Router (VSR)' feature used for
this purpose?

Can anybody give some details on it?


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Posted by jjachniuk@gmail.com on October 20, 2006, 3:34 am
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on version 23.0 you can syncronize session.

use the order /c/slb/virt x/service x/mirror ena



qazmlp1209@rediffmail.com wrote:
> I am currently checking the usage of Nortel Load balancer:'Nortel
> Alteon' 2208/3408.
>
> I would like to know whether these load balancers provide the support
> for Transparent Failover.
>
> Assume there are 2 Alteon servers configured in Active/Hot Standby
> redundancy mode. A client has setup a session with the active Alteon
> server. What happens to the session, connection, when this Alteon
> server fails? Will the Failover to the other Alteon server, be
> transparent to the Client? How does it work?
> Is 'VRRP Active-Standby Virtual Server Router (VSR)' feature used for
> this purpose?
>
> Can anybody give some details on it?


Posted by jjachniuk@gmail.com on October 20, 2006, 3:34 am
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also it only works on vrrp hot-standby mode.


qazmlp1209@rediffmail.com wrote:
> I am currently checking the usage of Nortel Load balancer:'Nortel
> Alteon' 2208/3408.
>
> I would like to know whether these load balancers provide the support
> for Transparent Failover.
>
> Assume there are 2 Alteon servers configured in Active/Hot Standby
> redundancy mode. A client has setup a session with the active Alteon
> server. What happens to the session, connection, when this Alteon
> server fails? Will the Failover to the other Alteon server, be
> transparent to the Client? How does it work?
> Is 'VRRP Active-Standby Virtual Server Router (VSR)' feature used for
> this purpose?
>
> Can anybody give some details on it?


Posted by on October 26, 2006, 10:26 am
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jjachniuk@gmail.com wrote:
> also it only works on vrrp hot-standby mode.

But, is the Failover transparent to the client? How exactly this is
taken care?
My understanding was that the client should connect to the standby load
balancer as soon as the active load balancer fails.

In case if the Failover is transparent, I assume there should be a load
balancer agent process running on the Clients, which will mask the load
balancer failures and re-establish the TCP connections transparently
towards the standby load balancer.

Could you clarify?


Posted by jjachniuk@gmail.com on October 28, 2006, 11:21 am
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it sync the sessions.

qazmlp1209@rediffmail.com wrote:
> jjachniuk@gmail.com wrote:
> > also it only works on vrrp hot-standby mode.
>
> But, is the Failover transparent to the client? How exactly this is
> taken care?
> My understanding was that the client should connect to the standby load
> balancer as soon as the active load balancer fails.
>
> In case if the Failover is transparent, I assume there should be a load
> balancer agent process running on the Clients, which will mask the load
> balancer failures and re-establish the TCP connections transparently
> towards the standby load balancer.
>
> Could you clarify?


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