Dynamic Mrouters; Mld Capacity And Default Values - IBM RackSwitch G8000 Application Manual

Dynamic Mrouters

MLD Capacity and Default Values

© Copyright IBM Corp. 2011
The switch learns Mrouters on the ingress VLANs of the MLD-enabled interface. All
report or done messages are forwarded to these Mrouters. By default, the option of
dynamically learning Mrouters is disabled. To enable it, use the following command:
RS G8000(config)# interface ip <interface number>
RS G8000(config-ip-if)# ipv6 mld dmrtr enable
Table 21 lists the maximum and minimum values of the G8000 variables.
Table 21. G8000 Capacity Table
Variable
IPv6 Multicast Entries
IPv6 Interfaces for MLD
Table 22 lists the default settings for MLD features and variables.
Table 22. MLD Timers and Default Values
Field
Robustness Variable (RV)
Query Interval (QI)
Query Response Interval (QRI)
Multicast Address Listeners Interval
(MALI)
Other Querier Present Interval [OQPT]
Start up Query Interval [SQI]
Startup Query Count [SQC]
Last Listener Query Interval [LLQI]
Last Listener Query Count [LLQC]
Last Listener Query Time [LLQT]
Older Version Querier Present Timeout:
[OVQPT]
Older Version Host Present Interval
[OVHPT]
Maximum Value
256
8
Default Value
2
125 seconds
10 seconds
260 seconds [derived: RV*QI+QRI]
255 seconds [derived: RV*QI + ½ QRI]
31.25 seconds [derived: ¼ * QI]
2 [derived: RV]
1 second
2 [derived: RV]
2 seconds [derived: LLQI * LLQT]
260 seconds [derived: RV*QI+ QRI]
260 seconds [derived: RV* QI+QRI]
Chapter 20. Multicast Listener Discovery
243