Paul Bottorff Paul.Bottorff@hp.com 802.1Qbg Maintenance Items Paul Bottorff Paul.Bottorff@hp.com 6/1/2019 EVB.

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Presentation transcript:

Paul Bottorff Paul.Bottorff@hp.com 802.1Qbg Maintenance Items Paul Bottorff Paul.Bottorff@hp.com 6/1/2019 EVB

MIB Problem: 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. 6/1/2019 EVB

MIB Problem: 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. 6/1/2019 EVB

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. 6/1/2019 EVB

Maintenance Item #91 Need a single unit for all these Table Clause 12 Object Type Clause 17 Object State Machine 12-18 evbSysEcpDfltAckTimerInit Timer Exp ieee8021BridgeEvbSysEcpAckTimer (?ieee8021BridgeEvbSysEcpDfltAckTimerInit) U32 usec evbSysVdpDfltRsrcWaitDelay ieee8021BridgeEvbSysVdpDfltRsrcWaitDelay evbSysVdpDfltReinitKeepAlive ieee8021BridgeEvbSysVdpDfltReinitKeepAlive 12-19 sbpVdpOperRsrcWaitDelay ieee8021BridgeEvbSbpVdpOperRsrcWaitDelay resourceWaitDelay 41.5.5.7 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 Int ieee8021BridgeEvbEcpOperMaxRetries U32 maxRetries 43.3.7.3 Need a single unit for all these 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 Usec: This is the unit currently specified in the SNMP MIB/Annex D Document uses both Timer Exp and 10 usec 6/1/2019 EVB

Notes On #91 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 10 usec (1/100,000 sec), and the equations should not include the 10x multiplier. Need to add units to the two equations. References to urpVdpResourceWaitDelay are incorrect, they should be urpVdpOperRsrcWaitDelay. Default times in 41.5.5.12 and 41.5.5.9 need to be increased by the 1.5 factor. Annex D.2.13.6, D.2.13.8, D.2.13.9 need to be changed to exclude the 10x factor when setting the ECP and VDP timer initialization values to match the timer resolutions of 10 usec. 6/1/2019 EVB