Syed Iftekhar Ahmed Tue, 09/04/2007 - 13:57

Box to Box mode is an Active/standby configuration.

For active-active Virtual interface redundancy is used (Where CSS serves as master of one virtual router and backup to a differnt VR)

Box to Box Redundancy

When to Use:

?When Active/Standby is the expected behavior.

?When a dedicated 10/100 link can be configured link between the CSS?s

?When Configuration-Synchronization is needed

When not to use:

?When Active/Active is needed

?When a dedicated 10/100 link between CSS?s cannot be used.

?Lack of 10/100 ports, or the switches are too far apart.

Hope it helps

Syed Iftekhar Ahmed

Syed Iftekhar Ahmed Tue, 09/04/2007 - 14:39


As per my understanding CSS11501S-C is only different then 11501 in the terms that it supports ssl termination and Http compression.

The data sheet you mentioned doesn't mention ACtive/Standby for even 11503 & 11506. I can guarantee you that host to host in supported on 11503 and 11506.

I have not worked on CSS11501S-C specifically but I think it should support Box to Box Active/standby redundancy.

Syed Iftekhar Ahmed

hassan_oudeh Wed, 09/05/2007 - 00:00


please check the attached picture that i captured from the data sheet...

what did they mean by the redundancy feature mentioned on the table ?

Hasan Odeh



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