in the mig svcext.mib that you can find by ftping to the CSS, you will find the following item
apSvcState OBJECT-TYPE
SYNTAX INTEGER {
suspended(1),
down(2),
alive(4),
dying(5)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current service state"
DEFVAL { suspended }
::= {apSvcEntry 17}
This should be what you want.
Gilles.