How can a root server be lame?

[André Pirard]

Hi,

How can, dixit 8.1.2, a root server be reported Lame for anything?
What are those GTLD-SERVERS keeping popping in and out anyway?

If the following from "Root Name Server Operational Requirements",
   4.5 Root name server administrative personnel MUST be available to
       provide service 24 hours a day, 7 days per week.  On call
       personnel MAY be used to provide this service outside of normal
       working hours.
are we sure that the following e-mail address will be that responsive?

. 1D IN SOA A.ROOT-SERVERS.NET. hostmaster.internic.NET.

Best regards,

André.

Lame server on 'GW-ATL1.DBSOFTWARE.COM' (in 'DBSOFTWARE.com'?):
[207.159.77.18].53 'F.GTLD-SERVERS.NET'
Lame server on 'GW-ATL1.DBSOFTWARE.COM' (in 'DBSOFTWARE.com'?):
[192.33.4.12].53 'C.ROOT-SERVERS.NET'
Lame server on 'GW-BOS1.DBSOFTWARE.COM' (in 'DBSOFTWARE.com'?):
[198.41.0.4].53 'A.ROOT-SERVERS.NET'
Lame server on 'GW-ATL1.DBSOFTWARE.COM' (in 'DBSOFTWARE.com'?):
[192.112.36.4].53 'G.ROOT-SERVERS.NET'
Lame server on 'GW-ATL1.DBSOFTWARE.COM' (in 'DBSOFTWARE.com'?):
[192.5.5.241].53 'F.ROOT-SERVERS.NET'
Lame server on 'GW-ATL1.DBSOFTWARE.COM' (in 'DBSOFTWARE.com'?):
[128.8.10.90].53 'D.ROOT-SERVERS.NET'
Lame server on 'GW-ATL1.DBSOFTWARE.COM' (in 'DBSOFTWARE.com'?):
[192.203.230.10].53 'E.ROOT-SERVERS.NET'
Lame server on 'GW-ATL1.DBSOFTWARE.COM' (in 'DBSOFTWARE.com'?):
[128.63.2.53].53 'H.ROOT-SERVERS.NET'
Lame server on 'GW-ATL1.DBSOFTWARE.COM' (in 'DBSOFTWARE.com'?):
[192.36.148.17].53 'I.ROOT-SERVERS.NET'
Lame server on 'GW-ATL1.DBSOFTWARE.COM' (in 'DBSOFTWARE.com'?):
[128.9.0.107].53 'B.ROOT-SERVERS.NET'
Lame server on 'GW-ATL1.DBSOFTWARE.COM' (in 'DBSOFTWARE.com'?):
[195.8.99.11].53 'K.GTLD-SERVERS.NET'
Lame server on 'GW-ATL1.DBSOFTWARE.COM' (in 'DBSOFTWARE.com'?):
[198.41.0.21].53 'J.GTLD-SERVERS.NET'