Extreme networks Summit1 Manuale Utente

S

UMMIT

 S

WITCH

 I

NSTALLATION

 

AND

 U

SER

 G

UIDE

12-9

P

ORT

 M

ONITORING

 D

ISPLAY

 K

EYS

The following port receive error information is collected by the switch:

The total number of frames received by the 

port that were of the correct length, but contained a bad FCS value.

The total number of good frames received 

by the port that were of greater than the supported maximum length of 1,522 bytes.

The total number of frames received by 

the port that were less than 64 bytes long.

The total number of frames received by the port 

that was of greater than the support maximum length and had a Cyclic Redundancy 
Check (CRC) error.

The total number of frames received by the 

port that occurs if a frame has a CRC error and does not contain an integral number 
of octets. 

The total number of frames received by the port 

that were lost because of buffer overflow in the switch.

P

ORT

 M

ONITORING

 D

ISPLAY

 K

EYS

 describes the keys used to control the displays that appear when you issue 

any of the 

show port

 commands.

Table 12-2: Port Monitoring Display Keys

U

Displays the previous page of ports.

D

Displays the next page of ports.

[Esc] or [Return]

Exits from the screen.

0

Clears all counters.

[Space]

Cycles through the following screens:

■

Packets per second

■

Bytes per second

■

Percentage of bandwidth

Available using the 

show port 

utilization

 command only.

Summit.bk : 12STATUS.FM  Page 9  Thursday, June 18, 1998  9:27 AM