1. 1Presentation_ID © 2000, Cisco Systems, Inc. IPCDN Working Group Cable Device Trap MIB draft-ietf-ipcdn-docsisevent-mib-00.txt Junming Gao, Cisco Systems Pak Siripunkaw, AT&T Broadband December 13, 2000

2. 2Presentation_ID © 2000, Cisco Systems, Inc. Needs for SNMP Traps in DOCSIS Proven effective mechanism to provide event reporting Requested by MSO’s Provided by vendors in various vendor specific private MIBs Long been considered by DOCSIS authors

3. 3Presentation_ID © 2000, Cisco Systems, Inc. CD Trap Evolution In RFC2669, It states “The definition and coding of events is vendor- specific.”, in August 1999 It tries to bring certain uniformity by making 2 sample traps for vendors to follow. It defines event table to bring uniformity to local event logging

4. 4Presentation_ID © 2000, Cisco Systems, Inc. CD Trap Evolution (cont.1) DOCSIS1.0 ATP brings syslog to uniformity In SP-OSSIv1.1-I02, it suggests an one error message one trap scheme, and tries to bring in an unified identification mechanism to local events, syslogs and traps

5. 5Presentation_ID © 2000, Cisco Systems, Inc. CD Trap Evolution (cont.2) In OSS-R-108, it proposes DOCS- IF-EXT-MIB and DOCS-CABLE- DEVICE-TRAP-MIB in October 2000 Its lead to this draft. It establishes a practical mechanism to bring uniformity as no pain as possible to all three event reporting mechanisms

6. 6Presentation_ID © 2000, Cisco Systems, Inc. CD Trap Evolution (cont.3) With RFI-N-121, the DOCSIS required (MUST supported) local events, syslogs and SNMP traps are consolidated under Appendix F of SP-OSSIv1.1.

7. 7Presentation_ID © 2000, Cisco Systems, Inc. What Events to Report Around 300 error events (messages) required support in OSS-R-108 Some events occur in CMTS only, Some in CM only, some both. Some CM events happen before IP connectivity establishes therefore not reportable by SNMP

8. 8Presentation_ID © 2000, Cisco Systems, Inc. What Events to Report (cont.) The error events are classified into CMTS category and CM category. In CM category, 16 types identified In CMTS category, 12 types identified

9. 9Presentation_ID © 2000, Cisco Systems, Inc. Design Decision One trap reports One Type of Events 28 Traps defined Balance the number of traps defined and easy identifying and processing by SNMP Trap manager

10. 10Presentation_ID © 2000, Cisco Systems, Inc. Uniformity Among Traps Common OBJECTS body to report event severity (priority), event Id, text message, CM DOCSIS version, CM cable interface MAC address, CMTS DOCSIS version and CMTS cable interface MAC address Each trap may have more objects included to suit its reporting needs

11. 11Presentation_ID © 2000, Cisco Systems, Inc. Uniformity Among Event Reporting Mechanisms Easy Converting Error Code into Event ID bridges local event reporting, syslog and SNMP notification events together Requires vendor defined SNMP traps to contain the common objects in the OBJECTS statement and follow the uniformity in all three mechanism

12. 12Presentation_ID © 2000, Cisco Systems, Inc. DOCS-IF-EXT-MIB Adding three objects to reflect DOCSIS version information – docsIfDevDocsisCapability: highest capability – docsIfDevDocsisOperStatus: operating version – docsIfCmtsCmStatusDocsisVersion: CM operating version seen by CMTS

13. 13Presentation_ID © 2000, Cisco Systems, Inc. DOCS-CABLE-DEVICE-TRAP- MIB 16 SNMP traps for CM 12 SNMP Traps for CMTS

14. 14Presentation_ID © 2000, Cisco Systems, Inc. CM Traps docsDevCmInitTLVUnknownTrap, docsDevCmDynServReqFailTrap, docsDevCmDynServResFailTrap, docsDevCmDynServAckFailTrap, docsDevCmBpiInitTrap, docsDevCmBPKMTrap, docsDevCmDynamicSATrap, docsDevCmDHCPFailTrap,

15. 15Presentation_ID © 2000, Cisco Systems, Inc. CM Traps (cont.) docsDevCmSwUpgradeInitTrap, docsDevCmSwUpgradeFailTrap, docsDevCmSwUpgradeSuccessTrap, docsDevCmSwUpgradeCVCTrap, docsDevCmTODFailTrap, docsDevCmDCCReqFailTrap, docsDevCmDCCResFailTrap, docsDevCmDCCAckFailTrap

16. 16Presentation_ID © 2000, Cisco Systems, Inc. CMTS Traps docsDevCmtsInitRegReqFailTrap, docsDevCmtsInitRegRspFailTrap, docsDevCmtsInitRegAckFailTrap, docsDevCmtsDynServReqFailTrap, docsDevCmtsDynServResFailTrap, docsDevCmtsDynServAckFailTrap,

17. 17Presentation_ID © 2000, Cisco Systems, Inc. CMTS Traps (cont.) docsDevCmtsBpiInitTrap, docsDevCmtsBPKMTrap, docsDevCmtsDynamicSATrap, docsDevCmtsDCCReqFailTrap, docsDevCmtsDCCResFailTrap, docsDevCmtsDCCAckFailTrap