referral and performance

[Andrea Albert <andrea.albert@is.haw-hamburg.de>]

Hi List,

in our LDAP-Server a part of the subtree is a referral object:

dn: dc=informatik,dc=hamburg,dc=de
objectClass: referral
objectClass: extensibleObject
objectClass: top
ref: ldap://1xx.xx.xx.xx/dc=informatik,dc=hamburg,dc=de

It works very fine!
But if the server to which this referral points go down, then the 
response time of the main LDAP-Server (containing this referral)
is >20 sec. Many clients close connection before getting any answer for 
authentication.
How can I avoid this problem?
Pls help!!

Thanks and bye
Andrea