ZyXEL Communications 2002 Series Betriebsanweisung PDF herunterladen (Seite 41)

VES-1000 Series Ethernet Switch

General, Switch and IP Setup 4-3

Table 4-2 Menu 2 – Switch Setup

FIELD DESCRIPTION EXAMPLE

Port Mirroring Port Mirroring allows you to copy traffic from a VDSL port to an

Ethernet port in order that you can examine the VDSL traffic from the

Ethernet port.

Press [SPACE BAR] once to select Enable and then press [ENTER

to allow port mirroring. Select the port that examines this “snooped”

port and the port you want to sniff in the next two fields.

Both the Ethernet port and the VDSL port must be in the same VLAN.

Disable

Snoop Port Press [SPACE BAR] to cycle through the choices and then press

[ENTER] to select an Ethernet port that will monitor a VDSL port.

Monitored Port Press [SPACE BAR] to cycle through the choices and then press

[ENTER] to select a VDSL port that will be monitored.

Broadcast Storm Control Use this field to limit the number of broadcast frames that can be

stored in the switch buffer. Broadcast frames that arrive when the

buffer is full are discarded. Press [SPACE BAR] to cycle through the

choices (0, 16, 32, 48 or 64 frames) and then press [ENTER]. If you

wish your network to receive a lot of broadcast traffic then choose a

larger number. To reduce broadcast traffic coming into your network,

choose a smaller number.

When you have completed this menu, press [ENTER] at the prompt “Press ENTER to Confirm…” to save your

configuration, or press [ESC] at any time to cancel.

4.2.1 Ethernet Port Trunking

Ethernet port trunking lets you aggregate the Ethernet ports into one logical link. The VES-1000 Series switch

uses MAC-based load balancing which analyzes a packet’s source and destination MAC addresses to distribute

the load between the two Ethernet ports when uplinking to the remote switch.

The remote switch to which the VES-1000 Series switch connects must also support Ethernet

port trunking. The load-balancing method, however, does not have to be the same as on the

VES-1000 Series switch.

Note that the two uplink ports must be connected to a single remote switch when port trunking is enabled.

Disable trunking (default) if you wish to daisy-chain other VES-1000 Series VDSL switches. Daisy-chaining

VES-1000 Series switches does degrade performance.

4.2.2 STP (Spanning Tree Protocol)

The use of STP in the majority of network environments is not recommended. Furthermore, this rarely used

feature should not be enabled on the VDSL ports on the VES-1000 Series of switches.

STP detects and breaks network loops and provides backup links between switches, bridges or routers. It allows a

device to interact with other STP-aware devices in your network to ensure that only one path exists between any

two stations on the network.

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ZyXEL Communications 2002 Series Betriebsanweisung Seite 41