Fast EtherHub 3500 System User’s Guide
For example, if packet collisions reach 1%, the LED labeled 1 will light up. However, if collisions go beyond 1% (e.g., 15%), the LED labeled 15+ and all the other LEDs before it (i.e., 1, 3, 5, and 10) will also light up in rapid succession.
ΦWhen more than 31 consecutive collisions occur on the cable segment connected to a port, that port is automatically partitioned by the hub. The hub automatically reconnects this port when a data packet longer than 512 bits (normal) is transmitted or received by the partitioned port without collision. This applies to all STP station ports and the cascade port.
Partition/Disable Indicators
Color: Yellow
Label: Partition/Disable
Function: Indicates port has been partitioned due to network error or intentionally disabled.
State | Condition |
ON | Partitioned |
|
|
OFF | OK |
BLINKING | Disabled |
Indication
Indicates port has been partitioned due to an abnormal network condition.
Port is in good condition.
Indicates the port has been disabled via agent software.
Table 5.13 Partition/Disable Indicators
Partition - A port is temporarily partitioned when a line error or too many collisions are detected on the attached segment. While automatically partitioned, the port continues to receive data from the segment. However, data is not transmitted onto the segment. When the problem is corrected or a valid data packet is received through the port, it is automatically recon- nected. When partitioning occurs, the port’s Partition LED will be continually lit. Otherwise, this LED should be OFF.
Hardware Reference |
