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18
460T Ch2.p65
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Intel Express 460T Standalone Switch Users Guide
MAC-based VLANs
Membership in this type of VLAN is based on assigning the MAC address
of a device to a VLAN. The advantage to this type of VLAN is that if users
move around, they are always part of the same VLAN as long as they stay
connected to the same switch. The Express 460T switch supports up to 12
MAC-based VLANs.
The disadvantage is that the initial configuration and subsequent
administration of a MAC-based VLAN can be challenging since the system
administrator needs to maintain lists of MAC addresses and enter those
addresses into the switch. Another disadvantage is that MAC-based VLANs
cannot span across switches.
MDI
MDI-X
ENG_VLAN
PC1: 00AA00123456
PC2: 00BB00123456
PC3: 00CC00123456
MAC-based VLANs, as designed on the Express 460T Switch, are meant to
limit broadcast and multicast traffic over the network. The switch relies on
limiting broadcast traffic to constrain network visibility of network
applications (such as TCP/IP) that rely on broadcasts (such as ARP) for
station discovery.
The Express 460T MAC-based VLANs are not intended to be a secure
solution. For secure VLANs use either port-based or IEEE 802.1Q-based
VLANs.
18
Express 460T Standalone Switch
Module A
®
Port 1
Port 2
Intel
Express 460T Standalone Switch
Status
Link\Act\Coll
Link\Act\Coll
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
MKT_VLAN
PC4: 000A321654EF
PC5: 00EE231456AA
4/19/00, 4:09 PM
Status
Left
18
19
20
21
22
23
24
Link = Solid Green
Activity = Blinking Green
Collision = Blinking Orange
Right
10Mbps = Solid Orange
100Mbps = Off
MFG_VLAN
PC6: 00EE123456DB
PC7: 00FF445651D4
PC8: 00CC123456C9
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