Comtrol ES7528 - Manual (Page 175)

RocketLinx ES7528 User Guide: 2000509 Rev. C VLAN (CLI) - 175
Configuration Using the Command Line Interface (CLI)
VLAN (CLI)
A Virtual LAN (VLAN) is a logical grouping of nodes for the purpose of limiting a broadcast domain to specific
members of a group without physically grouping the members. The VLAN allows you to isolate network traffic
so that only members of the VLAN could receive traffic from the same VLAN members. Basically, creating a
VLAN from a switch is the logical equivalent of physically reconnecting a group of network devices to another
Layer 2 switch, without actually disconnecting these devices from their original switches.
The ES7528 supports IEEE 802.1Q VLAN, which is also known as Tag-Based VLAN. This Tag-Based VLAN
allows a VLAN to be created across different switches. IEEE 802.1Q tag-based VLAN makes use of VLAN
control information stored in a VLAN header attached to IEEE 802.3 packet frames. This tag contains a
VLAN Identifier (VID) that indicates which VLAN a frame belongs to. Since each switch only has to check a
frame’s tag, without the need to dissect the contents of the frame, this also saves a lot of computing resources
within the switch.
Optionally, you can use the web user interface for configuration, see VLAN on Page 92.
The following table provides detailed information about command lines for the VLAN.
VLAN Port Configuration
VLAN Port PVID
Switch(config-if)# switchport trunk native vlan 2
Set port default vlan id to 2 success
Port Accept Frame
Type
Switch(config)# inter fa1
Switch(config-if)# acceptable frame type all
any kind of frame type is accepted!
Switch(config-if)# acceptable frame type vlantaggedonly
only vlan-tag frame is accepted!
Ingress Filtering
(for Fast Ethernet
Port 1)
Switch(config)# interface fa1
Switch(config-if)# ingress filtering enable
ingress filtering enable
Switch(config-if)# ingress filtering disable
ingress filtering disable
Egress rule –
Untagged (for
VLAN 2) Switch(config-if)# switchport access vlan 2
switchport access vlan - success
Egress rule –
Tagged (for VLAN
2) Switch(config-if)# switchport trunk allowed vlan add 2
Display – Port Ingress
Rule (PVID, Ingress
Filtering, Acceptable
Frame Type)
Switch# show interface fa1
Interface fastethernet1
Administrative Status : Enable
Operating Status : Not Connected
Duplex : Auto
Speed : Auto
Flow Control :off
Default Port VLAN ID: 2
Ingress Filtering : Disabled
Acceptable Frame Type : All
Port Security : Disabled
Auto Negotiation : Enable
Loopback Mode : None
STP Status: disabled
Default CoS Value for untagged packets is 0.
Mdix mode is Auto.
Medium mode is Copper.