Alert Standard Format (ASF) Specification

Alert Standard Format (ASF) Specification v2.0 DMTF Document DSP0136
DSP0136 23 April 2003 Page 46 of 94
5. The management console waits to receive an ACK from the client, but the ACK is lost; the
console (again) re-transmits the “Request” message with the same Sequence Number as the
original message in step 1.
RMCP Header ASF-RMCP Data
Vers Rsvd Seq# Class IANA Enterprise Number Type Tag Rsvd Len
06h 00h 05h 06h 00h 00h 11h BEh xx 08h xx xx
6. The managed client responds with an RMCP ACK, returning only an RMCP Header. Note
that all values are copied from the “Request” message’s RMCP header, with the “ACK” bit set
in the fourth byte.
RMCP Header
Vers Rsvd Seq# Class
06h 00h 05h 86h
7. The managed client responds with the associated ASF-RMCP “Response”, possibly with a
new Sequence Number. Note that the Message Tag value (08h) is copied from the
“Request” message.
RMCP Header ASF-RMCP Data
Vers Rsvd Seq# Class IANA Enterprise Number Type Tag Rsvd Len
06h 00h 0Ah 06h 00h 00h 11h BEh xx 08h xx xx
8. The management console receives the ACK and waits for the “Response” from the client, but
the “Response” is lost; the console (again) re-transmits the “Request” message with the
same Sequence Number as the original message in step 1.
RMCP Header ASF-RMCP Data
Vers Rsvd Seq# Class IANA Enterprise Number Type Tag Rsvd Len
06h 00h 05h 06h 00h 00h 11h BEh xx 08h xx xx
9. The managed client responds with an RMCP ACK, returning only an RMCP Header. Note
that all values are copied from the “Request” message’s RMCP header, with the “ACK” bit set
in the fourth byte.
RMCP Header
Vers Rsvd Seq# Class
06h 00h 05h 86h
10. The managed client responds with the associated ASF-RMCP “Response”, possibly with a
new Sequence Number. Note that the Message Tag value (08h) is copied from the
“Request” message.
RMCP Header ASF-RMCP Data
Vers Rsvd Seq# Class IANA Enterprise Number Type Tag Rsvd Len
06h 00h 0Bh 06h 00h 00h 11h BEh xx 08h xx xx
11. The management console, having received both the ACK and “Response” sends an RMCP
ACK, completing the request/response cycle. The RMCP Header is copied from the
managed client’s “Response” message, with the “ACK” bit set in byte 4.
RMCP Header
Vers Rsvd Seq# Class
06h 00h 0Bh 86h