Paul Bottorff Paul.Bottorff@hp.com 802.1Qbg Maintenance Items Paul Bottorff Paul.Bottorff@hp.com 2/28/2019 EVB.

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Presentation transcript:

Paul Bottorff Paul.Bottorff@hp.com 802.1Qbg Maintenance Items Paul Bottorff Paul.Bottorff@hp.com 2/28/2019 EVB

Maintenance #101: VSIMgrID size Problem: ieee8021BridgeEvbVSIMgrID object defines an octet string object with size 1, with a reference to subclause 41.1.3 'VSI Manager ID'. However this subclause states that 'The value 0 means ... indicating that the Bridge should select a default value. Any other value is interpreted as an IPv6 address, as defined in IETF RFC 4291.' In addition the 'VSI Mgr ID' field in the VSI manager ID TLV is defined as 16 octets. This seems to imply the object size should be 16 bytes. Recommendation: Ieee8021BridgeEvbVSIMgrID size should be 16 octets not 1 octet. Need to deprecate MIB object and define a new object in the same row with a new name (i.e. ieee8021BridgeEvbVSIMgrID16). Cor-agenda? 2/28/2019 EVB

Maintenance #???: VSIMvFormat Size Problem: The values for ieee8021BridgeEvbVSIMvFormat object are 'basic (1)', 'partial (2)', and 'vlanOnly (3)‘, however the reference for this object is subclause 41.2.8 'Filter Info format' which states 'The Filter Info formats defined by this standard are shown in Table 41-6.'. Table 41-6 however defines values of 'VID (41.2.9.1) 0x01', 'MAC/VID (41.2.9.2) 0x02', 'GroupID/VID (41.2.9.3) 0x03' and 'GroupID/MAC/VID (41.2.9.4) 0x04' which don't match the object vales.   Recommendation: The value list should match Table 41-6. Deprecate the object, create a new one with new name (i.e. VSIMvFormat4). 2/28/2019 EVB

Maintenance #???: ieee8021BridgeEvbVDPCounterDiscontinuity Problem: The description for the ieee8021BridgeEvbVDPCounterDiscontinuity object is 'The time (in hundredths of a second) since the last counter discontinuity.' and while I assume it is either associated with, or derived from, ifCounterDiscontinuityTime there appears to be no further definition of this object and there is no reference subclause. Recommendation: The discontinuity referred to is VSIDBEntry creations which can occur at any time since these entries can be created and destroyed dynamically along with the VDP machine instances. The timer which may have a discontinuity is the ieee8021BridgeEvbVSITimeSinceCreate. Some text should be added to the VDPCounterDiscontinuity indicating that it is set when the VSIDBEntry is created. At very least the description should be improved, possibly the MIB items should be removed. 2/28/2019 EVB

Maintenance #???: Problem: Clause 12 specifies object called evbSysEcpDfltAckTimerInit and evbSysEcpDfltMaxTries, however clause 17 references objects by the names ieee8021BridgeEvbSysEcpAckTimer and ieee8021BridgeEvbSysEcpMaxTries in table 17-26 and ieee8021BridgeEvbSysEcpMaxRetries in the MIB text. These names should be alligned and MaxTries should be relaced with MaxRetries. PROPOSED REVISION TEXT: Replace evbSysEcpDftlMaxTries in clause 12 and table 12-17 with evbSysEcpDfltMaxRetries. Replace ieee8021BridgeEvbSysEcpAckTimer and ieee8021BridgeEvbSysEcpMaxTries in table 17-26 with ieee8021BridgeEvbSysEcpDfltAckTimerInit and ieee8021BridgeEvbSysEcpDfltMaxRetries. Deprecate ieee8021BridgeEvbSysEcpAckTimer and ieee8021BridgeEvbSysEcpMaxRetries from the SNMP MIB and add new replacement objects called ieee8021BridgeEvbSysEcpDfltAckTimerInit and ieee8021BridgeEvbSysEcpDfltMaxRetries. 2/28/2019 EVB

Maintenance Item #91 Units in 41/43, Annex D, CL12, CL17 are different Ref Table Clause 12 Object Unit Clause 17 Object State Machine 12-17 evbSysEcpDfltAckTimerInit Timer Exp ieee8021BridgeEvbSysEcpAckTimer (?ieee8021BridgeEvbSysEcpDfltAckTimerInit) U32 usec evbSysVdpDfltRsrcWaitDelay ieee8021BridgeEvbSysVdpDfltRsrcWaitDelay evbSysVdpDfltReinitKeepAlive ieee8021BridgeEvbSysVdpDfltReinitKeepAlive 12-19 sbpVdpOperRsrcWaitDelay ieee8021BridgeEvbSbpVdpOperRsrcWaitDelay resourceWaitDelay 41.5.5.7 10 usec sbpVdpOperReinitKeepAlive ieee8021BridgeEvbSbpVdpOperReinitKeepAlive toutKeepAlive 41.5.5.13 12-26 urpVdpOperRsrcWaitDelay ieee8021BridgeEvbURPVdpOperRsrcWaitDelay respWaitDelay 41.5.5.9 urpVdpOperReinitKeepAlive ieee8021BridgeEvbURPVdpOperReinitKeepAlive reinitKeepAlive 41.5.5.5 ecpOperAckTimerInit ieee8021BridgeEvbEcpOperAckTimerInit ackTimer 43.3.6.1 ecpOperMaxTries U [0..7] ieee8021BridgeEvbEcpOperMaxRetries U32 maxRetries 43.3.7.3 Units in 41/43, Annex D, CL12, CL17 are different Timer Exp: This is the power of 2 passed in the EVB TLV 10 usec: This is the timer unit used in the state machines (VDP, ECP timer tic) Usec: This is the unit currently specified in the SNMP MIB/Annex D Recommend Timer Exp for CL12/CL17 and 10usec for 41/43/AnnexD 2/28/2019 EVB

Resolutions for #91 clause 17 First correct clause 17 by changing all the following timer_exp ieee8021BridgeEvbSysEcpAckTimer (should be named ieee8021BridgeEvbSysEcpDfltAckTimerInit Exp) ieee8021BridgeEvbSysVdpDfltRsrcWaitDelay Exp ieee8021BridgeEvbSysVdpDfltReinitKeepAlive Exp ieee8021BridgeEvbSbpVdpOperRsrcWaitDelay Exp ieee8021BridgeEvbSbpVdpOperReinitKeepAlive Exp ieee8021BridgeEvbSbpVdpOperToutKeepAlive usec ieee8021BridgeEvbURPVdpOperRsrcWaitDelay Exp ieee8021BridgeEvbURPVdpOperReinitKeepAlive Exp ieee8021BridgeEvbURPVdpOperRespWaitDelay usec ieee8021BridgeEvbEcpOperAckTimerInit Exp ieee8021BridgeEvbEcpOperMaxRetries (0..7) Need to deprecate and re-name all these (i.e. add Exp suffix) SNMP unit usigned32 (0..31) 2/28/2019 EVB

Resolution for #91 annex D Annex D.2.13.6, D.2.13.8, D.2.13.9 needs to be changed to exclude the 10x factor when setting the ECP and VDP timer initialization values to match the VDP and ECP timer units of10 usec. For D.2.13.6 remove the 10x in the equation changing the units to “VDP timer tics”. Also change the last sentence to “…greater of 8 (2.56ms) and local value for RTE is used.” For D.2.13.8 remove the 10x in the equation changing the units to “VDP timer tics”. For D.2.13.9 remove the 10x in the equation changing the units to “VDP timer tics”. 2/28/2019 EVB

Resolution for #91 clause 41 Since VDP timers have a resolution of 10 usec (41.5.4) the variables toutKeepAlive (41.5.5.12) and respWaitDelay (41.5.5.9) should be in units of time tic (10 usec), and the equations should not include the 10x multiplier. Need to add units of “timer tics” to the two equations. Replace respWaitDelay equation with respWaitDelay = 1.5 x (resourceWaitDelay + (2 x ecpOperMaxTries + 1) x ecpOperAckTimerInit) tics Replace the default value with 17.4 seconds Replace toutKeepAlive equation with toutKeepAlive = 1.5 x (reinitKeepAlive + (2 x ecpOperMaxTries + 1) x ecpOperAckTimerInit) tics 2/28/2019 EVB