Technical data

30 High Availability Layer 3 considerations
217316-A Rev 00
Enter the appropriate information in the fields provided and click Apply. For an
explanation of the fields on this tab, see Table 10.
High Availability Layer 3 considerations
• If you want to use High Availability (HA) mode, verify that the link speed/
duplex mode for the CPU module are 100Mb/s and Full Duplex. Use the
following CLI commands to configure the link speed and duplex mode:
config bootconfig net cpu2cpu speed 100
config bootconfig net cpu2cpu fullduplex true
• If the link is not configured in 100Mb/s and Full Duplex mode, either you
cannot synchronize the two CPUs or the synchronization may take a long
time. Error messages may appear on the console. (Q00839619)
• In HA mode, Nortel Networks recommends that you not configure the OSPF
hello timers less than a second, and the dead router interval less than 15
seconds.
SMLT network design considerations
• If you use LACP in an SMLT/Square configuration, the LACP must have the
same keys for that SMLT/LAG; otherwise, the aggregation may fail if a
switch failure occurs. (Q00789437)
Table 10 Port Ext. CP Limit Tab Fields
Field name Description
CplimitConf Sets the manner in which the individual port participates in the
Extended CP limit functionality. Select one of the following values for
the port:
• None - port is not checked (default value).
• SoftDown - port belongs to "may-go-down" port list.
• HardDown - port belongs to "must-go-down" port list.
CplimitUtilRate Sets the threshold percentage at which bandwidth utilization triggers
the monitoring algorithm.