Cisco Systems SLM224G4PS 사용자 설명서

다운로드
페이지 78
Chapter 5
Configuration Using the Web-based Utility
26
24/48-Port 10/100 + 4-Port Gigabit Smart Switch with Resilient Clustering Technology and PoE
Remove 
To remove the port from a VLAN, select the VLAN 
from the list on the right and click Remove. The VLAN ID 
will appear in the list on the left without the “T” or “U”.
Tagging 
When you are adding a port to a VLAN, specify 
whether the port is Tagged (default) or Untagged.
Click Save to save your changes and leave the screen open, 
Save & Close to save your changes and close the screen, or 
click Close to close the screen without saving your changes.
Statistics
The  Statistics  tab  contains  the  Interface Statistics  screen, 
which lets you display statistics for a specified interface.
Statistics > RMON Statistics
Statistics > RMON Statistics
This screen allows you to display RMON statistics for the 
Ethernet port or LAG that you specify. You can also specify 
the rate at which the display will be refreshed.
Interface 
To display statistics for an Ethernet port, select 
Unit No., then select the desired unit number and port 
from the drop-down menus. To display statistics for a LAG, 
select LAG and then select the desired LAG from the drop-
down menu. 
Refresh  Rate 
Select  the  rate  at  which  to  refresh  the 
statistics display. The values are 15 sec30 sec60 sec, and 
No Refresh (default).
Drop  Events 
Displays  the  number  of  dropped  events 
that have occurred on the interface since the device was 
last refreshed.
Received Bytes (Octets) 
Displays the number of octets 
received  on  the  interface  since  the  device  was  last 
refreshed.  This  number  includes  bad  packets  and  FCS 
octets, but excludes framing bits.
Received  Packets 
Displays  the  number  of  packets 
received  on  the  interface,  including  bad  packets, 
Multicast and broadcast packets, since the device was last 
refreshed.
Broadcast  Packets  Received 
Displays  the  number  of 
good  broadcast  packets  received  on  the  interface  since 
the  device  was  last  refreshed.  This  number  does  not 
include Multicast packets.
Multicast  Packets  Received 
Displays  the  number  of 
good Multicast packets received on the interface since the 
device was last refreshed.
CRC  &  Align  Errors 
Displays  the  number  of  CRC  and 
Align errors that have occurred on the interface since the 
device was last refreshed.
Undersize  Packets 
Displays  the  number  of  undersized 
packets  (less  than  64  octets)  received  on  the  interface 
since the device was last refreshed.
Oversize  Packets 
Displays  the  number  of  oversized 
packets (over 1518 octets) received on the interface since 
the device was last refreshed.
Fragments 
Displays  the  number  of  fragments  (packets 
with  less  than  64  octets,  excluding  framing  bits,  but 
including FCS octets) received on the interface since the 
device was last refreshed.
Jabbers 
Displays  the  total  number  of  received  packets 
that were longer than 1518 octets. This number excludes 
frame bits, but includes FCS octets that had either a bad 
Frame Check Sequence (FCS) with an integral number of 
octets (FCS Error) or a bad FCS with a non-integral octet 
(Alignment  Error)  number.  The  field  range  to  detect 
jabbers is between 20 ms and 150 ms.
Collisions 
Displays the number of collisions received on 
the interface since the device was last refreshed.
Frames of xx Bytes 
Number of xx-byte frames received 
on the interface since the device was last refreshed.
Clear  Counters 
Click  Clear  Counters  to  reset  all  the 
counters on this screen to zero.
Refresh  Now 
Click  Refresh  Now  to  refresh  the  display 
immediately with the latest information.
Statistics > RMON History
The  RMON  History  screen  contains  information  about 
samples of data taken from ports. For example, the samples 
may include interface definitions or polling periods.