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Chapter 3 Using the console interface 147
Using the BayStack 380 10/100/1000 Switch
System Log screen
The System Log screen (Figure 72) displays or clears messages obtained from
system nonvolatile random access memory (NVRAM) or dynamic random access
memory (DRAM) and NVRAM.
System Log messages operate as follows:
• NVRAM messages are retrievable after a system reset.
• DRAM messages can be viewed while the system is operational.
• All NVRAM and DRAM messages are time stamped.
• When you restart your system after a reset, the DRAM messages are deleted.
• After a reset, all messages stored in NVRAM are copied to DRAM (DRAM
messages are not copied to NVRAM). The messages copied to DRAM are
time stamped to zero (0).
Flooded Packets Indicates the total number of packets flooded (forwarded) through this port
because the destination address was not in the address database.
FCS Errors Indicates the total number of valid-size packets that were received with proper
framing but discarded because of cyclic redundancy check (CRC) errors.
Collisions
Indicates the total number of collisions detected on this port.
Single Collisions
Indicates the total number of packets that were transmitted successfully on this
port after a single collision.
Multiple Collisions
Indicates the total number of packets that were transmitted successfully on this
port after more than one collision.
Excessive Collisions
Indicates the total number of packets lost on this port due to excessive collisions.
Late Collisions Indicates the total number of packet collisions that occurred after a total length of
time that exceeded 512 bit-times of packet transmission.
Control packets Transmitted column: Indicates the total number of pause frames transmitted on
this port. Pause frames cause the transmitting port to temporarily suspend the
transmission of packets when the receiving port’s frame buffer is full.
Received column: Indicates the total number of pause frames received on this
port. Pause frames cause the transmitting port to temporarily suspend the
transmission of packets when the receiving port’s frame buffer is full.
Table 31 Port Statistics screen fields (continued)
Field Description