Version 2.0
Advanced Configuration
72
Mellanox Technologies
Event
Description
Link IB Port State
An InfiniBand link’s port state has changed
Number of 10GbE Gateways
Changed
The number of 10 GbE gateways in the logical cluster
has changed
10GbE Gateway is Going to
Reboot
The sRB-20210G unit is about to reboot.
10GbE Gateway Finished
Initialization
The sRB-20210G unit has finished its initialization
(usually after reboot)
You can control each event via the corresponding options of the following columns:
Send to Log
– Select this check box (on the event’s row) if you want the system to
register each occurrence of this event in the system log.
Send Trap
– Select this check box (on the event’s row) if you want the system to send
an appropriate trap whenever this event occurs.
Severity
– From the corresponding list box (on the event’s row), select and set the
severity level of this event. The possible severity levels:
›
Normal
›
Minor
›
Warning
›
Critical.
NOTE:
The
Set Alarm
,
Auto Correction
, and
Trap Consolidation
columns are ISR
switch-related and are not functional for the sRB-20210G unit.
6.8
Port MTU Configuration (Jumbo Frames)
The sRB-20210G supports different MTU sizes for Ethernet and IB networks. The supported
MTU values are 1.5 KB or 9 KB for the Ethernet networks, and 1.5 KB or 2 KB for IB
networks.
The sRB-20210G intermediates between these networks using different MTU sizes and by
implementing the Path MTU discovery (PMTU) mechanism.
Upon receiving an IP packet that is too large to transfer to the other side, the sRB-20210G
issues an ICMP error toward the sender, notifying regarding the maximum packet size that can
be delivered to the destination IP. A host that supports PMTU decreases the size of the IP
packets accordingly.
The following table shows the possible port MTU configurations:
Table
6-6. Possible Port MTU Configurations
ETH Port MTU
IB Port MTU
1.
1.5 KB (default)
2 KB (default)
2.
1.5 KB
1.5 KB
