Dell PowerConnect B-FCXs Configuration Manual page 482

13
VLAN overview
FIGURE 92
SUBNET Ports in a new protocol VLAN that do not receive traffic for the VLAN protocol age out after
10 minutes and become candidate ports.
receives traffic for the VLAN protocol.
FIGURE 93
440
VLAN with dynamic ports—all ports are active when you create the VLAN
A = active port
C = candidate port
When you add ports dynamically,
all the ports are added when you add
the VLAN.
A A A
A
A A
VLAN with dynamic ports—candidate ports become active again if they receive
protocol traffic
Ports that time out remain candidates
for membership in the VLAN and become active
again if they receive traffic for the VLAN's
protocol, IP sub-net, IPX network, or
AppleTalk cable range.
When a candidate port rejoins a VLAN,
the timeout for that port becomes 20 minutes.
Thus, the port remains an active member of
the VLAN even if it does not receive traffic
for 20 minutes. After that, the port becomes
a candidate port again.
A A A
A A
C
A
A
Figure 93 shows what happens if a candidate port
A
C
PowerConnect B-Series FCX Configuration Guide
53-1002266-01