ASF Specification v2.0 DSP0136 - DMTF
ASF Specification v2.0 DSP0136 - DMTF
ASF Specification v2.0 DSP0136 - DMTF
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Alert Standard Format (<strong>ASF</strong>) <strong>Specification</strong> <strong>v2.0</strong><br />
<strong>DMTF</strong> Document <strong>DSP0136</strong><br />
2. The managed client responds with an RMCP ACK, returning only an RMCP Header. Note<br />
that all values are copied from the “Request” message’s RMCP header, with the “ACK” bit set<br />
in the fourth byte.<br />
RMCP Header<br />
Vers Rsvd Seq# Class<br />
06h 00h 05h 86h<br />
3. The managed client responds with the associated <strong>ASF</strong>-RMCP “Response”. Note that the<br />
Message Tag value (08h) is copied from the “Request” message.<br />
RMCP Header<br />
<strong>ASF</strong>-RMCP Data<br />
Vers Rsvd Seq# Class IANA Enterprise Number Type Tag Rsvd Len<br />
06h 00h 09h 06h 00h 00h 11h BEh xx 08h xx xx<br />
4. The management console, having received both the ACK and “Response” sends an RMCP<br />
ACK, completing the request/response cycle. The RMCP Header is copied from the<br />
managed client’s “Response” message, with the “ACK” bit set in byte 4.<br />
RMCP Header<br />
Vers Rsvd Seq# Class<br />
06h 00h 09h 86h<br />
Interactions with some packet loss<br />
1. The description that follows illustrates the RMCP Header and RMCP Data fields in a consoleto-client<br />
communication where some of the messages are lost. The management console<br />
sends an <strong>ASF</strong>-RMCP “Request” message<br />
RMCP Header<br />
<strong>ASF</strong>-RMCP Data<br />
Vers Rsvd Seq# Class IANA Enterprise Number Type Tag Rsvd Len<br />
06h 00h 05h 06h 00h 00h 11h BEh xx 08h xx xx<br />
2. The management console waits to receive an ACK from the client, but the client never<br />
received that “Request” message; the console re-transmits the “Request” message with the<br />
same Sequence Number as the original message in step 1.<br />
RMCP Header<br />
<strong>ASF</strong>-RMCP Data<br />
Vers Rsvd Seq# Class IANA Enterprise Number Type Tag Rsvd Len<br />
06h 00h 05h 06h 00h 00h 11h BEh xx 08h xx xx<br />
3. The managed client responds with an RMCP ACK, returning only an RMCP Header. Note<br />
that all values are copied from the “Request” message’s RMCP header, with the “ACK” bit set<br />
in the fourth byte. The console never receives this ACK.<br />
RMCP Header<br />
Vers Rsvd Seq# Class<br />
06h 00h 05h 86h<br />
4. The managed client responds with the associated <strong>ASF</strong>-RMCP “Response”. Note that the<br />
Message Tag value (08h) is copied from the “Request” message.<br />
RMCP Header<br />
<strong>ASF</strong>-RMCP Data<br />
Vers Rsvd Seq# Class IANA Enterprise Number Type Tag Rsvd Len<br />
06h 00h 09h 06h 00h 00h 11h BEh xx 08h xx xx<br />
<strong>DSP0136</strong> 23 April 2003 Page 45 of 94
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