LevelOne GEL-2461 Manual - Page 34

Port Mirroring

Get LevelOne GEL-2461 PDF manuals and user guides View all LevelOne GEL-2461 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 34 highlights

Chapter 6 Basic 10M/FDX, 100M/HDX, 100M/FDX, 1000M/FDX, and Disabled. The default value is Auto, which means the port will auto negotiate the speed and duplex mode with the remote port on the link. If you want to disable a port, please select Disabled. Maximum Frame: It specifies the maximum frame size supported by the port. The valid range is from 1518 to 9600 bytes. Flow Control: It allows you to enable or disable flow control on the port. If you want to enable flow control on the port, please select the check box. Port Protection: It allows you to enable or disable port protection on the port. If you select the check box to enable port protection on a port, the port will no longer learn any new MAC address, and only forward the packets whose desination MAC addresses have been added to the MAC/Port Binding List. Else, the port will learn MAC address and forward the packets as usual. Disable Learning: It allows you to enable or disable MAC address learning on the port. If you select the check box to disable MAC address learning on a port, the packets received on that port will be flooded to all other ports. ARP Trusted Port: After you enable ARP spoofing prevention in Basic > System Settings page, the Switch will take protection measure if the number of received ARP packets exceeds the threshold. However, you can set a port as an ARP trusted port that is exempt from this restriction. Note 1. If no MAC address is added to the MAC/Port Binding List, enabling port protection on all ports will make you unable to access and manage the Switch. 2. If you select the Disable Learning check box on multiple or all ports, it will seriously degrade the network performance, so please do it with caution. 3. To use flow control feature properly, both the local port and remote port on the link should support and enable it. In addition, LACP and flow control cannot be enabled on a port at the same time. If you enable LACP on a port, the system will automatically disable flow control on the port. 6.4 Port Mirroring Port mirroring allows an administrator to mirror and monitor network traffic. It copies the traffic from the specified ports to another port where the traffic can be monitored with an external network analyzer. Then the administrator can perform traffic monitoring, performance analysis and fault diagnosis. On the Switch, any port can act as the mirroring port, which is used to capture traffic of http://www.level1.com Page 27

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
Chapter 6 Basic
Page 27
10M/FDX
,
100M/HDX
,
100M/FDX
,
1000M/FDX
, and
Disabled
. The default value is
Auto
, which means the port will auto negotiate the speed and duplex mode with the
remote port on the link. If you want to disable a port, please select
Disabled
.
Maximum Frame:
It specifies the maximum frame size supported by the port. The
valid range is from 1518 to 9600 bytes.
Flow Control:
It allows you to enable or disable flow control on the port. If you want
to enable flow control on the port, please select the check box.
Port Protection:
It allows you to enable or disable port protection on the port. If you
select the check box to enable port protection on a port, the port will no longer learn
any new MAC address, and only forward the packets whose desination MAC
addresses have been added to the
MAC/Port Binding List
. Else, the port will learn
MAC address and forward the packets as usual.
Disable Learning:
It allows you to enable or disable MAC address learning on the
port. If you select the check box to disable MAC address learning on a port, the
packets received on that port will be flooded to all other ports.
ARP Trusted Port:
After you enable ARP spoofing prevention in
Basic > System
Settings
page, the Switch will take protection measure if the number of received ARP
packets exceeds the threshold. However, you can set a port as an ARP trusted port
that is exempt from this restriction.
Note
1.
If no MAC address is added to the
MAC/Port Binding List
, enabling port protection
on all ports will make you unable to access and manage the Switch.
2. If you select the
Disable Learning
check box on multiple or all ports, it will seriously
degrade the network performance, so please do it with caution.
3.
To use flow control feature properly, both the local port and remote port on the link
should support and enable it. In addition, LACP and flow control cannot be enabled on
a port at the same time. If you enable LACP on a port, the system will automatically
disable flow control on the port.
6.4
Port Mirroring
Port mirroring allows an administrator to mirror and monitor network traffic. It copies the
traffic from the specified ports to another port where the traffic can be monitored with an
external network analyzer. Then the administrator can perform traffic monitoring,
performance analysis and fault diagnosis.
On the Switch,
any port can act as the mirroring port, which is used to capture traffic of