CSS11501 Active-Standby GLSB via routing, not DNS, CSS in different subnets
I have asked this of TAC and they were less than helpful and responsive.
I have 2 physical sites A and B
I have 2 CSS11501S-K9 SLB's.
I'd like the 2 CSS's to share a VIP between them in an active-standby setup, in one-armed configuration, when they physically separate and in different subnets.
ie: 220.127.116.11/32 is a VIP configured on both CSS, advertised by OSPF as a /32 route the active CSS (I have this working). If CSS2 (standby) sees that CSS1 (active) is dead, he, CSS2, starts advertising the VIP to OSPF and taking connections to that IP.
I swear I had read (and seen) this sort of GLSB configuration on the CSS (routing based, not DNS-based), but I cannot seem to find the configuration example anymore. Can anyone help.
Re: CSS11501 Active-Standby GLSB via routing, not DNS, CSS in di
Its not directly possible with the CSS. The CSM can do this with "advertise active", but CSS does not have this feature.
You can make it look like its happening using redirect services, which you would add to a content rule as a sorry service. If all the local services were down, it would use the redirect service to send the client to the other site. Then config the same for the other site, to return the user to the first site if all its local services are down. But this only works for protocols that have a redirect mechanism, like HTTP and MMS.
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