Enterasys Networks VH-2402S manual Displaying Port Statistics

Displaying Port Statistics

Port Statistics display key statistics from the Ethernet-like MIB for each port. Error statistics on the traffic passing through each port are displayed. This information can be used to identify potential problems with the switch (such as a faulty port or unusually heavy loading). The values displayed have been accumulated since the last system reboot.

Select the required stack unit, and port or module. The statistics displayed are indicated in the following figure and table.

Vertical Horizon Local Management -- VH-2402S

Port Statistics : Unit 1 Port 1
EtherLike Counter:
Alignment Errors	:0	Late Collisions	:0
FCS Errors	:0	Excessive Collisions	:0
Single Collision Frames	:0	Internal MAC Transmit Errors:0
Multiple Collision Frames:0		Carrier Sense Errors	:0
SQE Test Errors	:0	Frames Too Long	:0
Deffered Transmissions	:0	Internal MAC Receive Errors :0
[Refresh Statistics]		Show port : 1
[Reset Counters]		[Show]

<OK> <PREV UNIT> <NEXT UNIT> <PREV PORT> <NEXT PORT>

Use <TAB> or arrow keys to move. <Enter> to select.

		Figure 2-46. Port Statistics
	Parameter	Description
	Alignment Errors	For 10 Mbps ports, this counter records alignment errors (mis-
		synchronized data packets). For 100 Mbps ports, this counter
		records the sum of alignment errors and code errors (frames
		received with rxerror signal).
	FCS Errors	The number of frames received that are an integral number of
		octets in length but do not pass the FCS check.
	Single Collision	The number of successfully transmitted frames for which
	Frames*	transmission is inhibited by exactly one collision.
	Multiple Collision	A count of successfully transmitted frames for which transmission
	Frames*	is inhibited by more that one collision.
	SQE Test Errors*	A count of times that the SQE TEST ERROR message is
		generated by the PLS sublayer.
	Deferred	A count of frames for which the first transmission attempt on a
	Transmissions*	particular interface is delayed because the medium was busy.
	Late Collisions	The number of times that a collision is detected later than 512 bit-
		times into the transmission of a packet.
	Excessive Collisions*	The number of frames for which transmission failed due to
		excessive collisions.
9033645-01		VH-2402S User Interface 59