Avaya 580 사용자 설명서

Document No. 10-300077, Issue 2

8-11

Configuring Ports

With the set vlan CLI command, assign port 1, and port 2 to VLAN4 and 
also assign port 4 to VLAN1 and VLAN2. Then PC1 and PC2 could 
communicate with SERVER1 across VLANs without any noticeable 
problems. However, when PC1 transmits a packet to SERVER1, the 
following occurs:

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The packet is sent to the Switch

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The switch looks for the MAC address of SERVER1in the Address 
Forwarding Table for VLAN1 (because this is the actual port VLAN 
assigned to the port)

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The switch will be unable to find an entry for the MAC address of 
SERVER1

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The switch will flood this packet to all ports assigned to VLAN1 
(regardless of how the VLAN was assigned to the port) 

*Note: The only exception to flooding a port is if ‘Known Mode’ 

is set to enable on the port, which stops the flooding of 
destination unknown unicast packets.

If you had many clients/servers on separate VLANs and they tried to 
communicate over multiple VLANs using this method, you would flood 
your network with undesired packets, thus slowing your overall network 
performance. Currently, the best solution is to use a L3 module to route 
between the VLANs. This would eliminate the broadcast of destination 
unknown unicast packets.

This section contains the following procedures: 

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You can configure the physical port parameters on 10-Gigabit ports by 
using either the Web Agent or the CLI.

For detailed information about each parameter, see 

.