118
The Managed Switch supports multiple VLAN tags and can therefore be used in MAN applications as a provider bridge,
aggregating traffic from numerous independent customer LANs into the
MAN (Metro Access Network)
space. One of
the purposes of the provider bridge is to recognize and use VLAN tags so that the VLANs in the MAN space can be
used independent of the customers’ VLANs. This is accomplished by adding a VLAN tag with a MAN-related VID for
frames entering the MAN. When leaving the MAN, the tag is stripped and the original VLAN tag with the
customer-related VID is again available.
This provides a tunneling mechanism to connect remote costumer VLANs through a common MAN space without
interfering with the VLAN tags. All tags use EtherType
0x8100
or
0x88A8
, where 0x8100 is used for customer tags and
0x88A8 are used for service provider tags.
In cases where a given service VLAN only has two member ports on the switch, the learning can be disabled for the
particular VLAN and can therefore rely on flooding as the forwarding mechanism between the two ports. This way, the
MAC table requirements is reduced.
Edit Interface Setting
The Edit Interface Setting/Status screens in
Figure 4-5-5
&
Figure 4-5-6
appear.
Figure 4-5-5
Edit Interface Setting Page Screenshot
The page includes the following fields:
Содержание NS3500-28T-4S
Страница 1: ...NS3500 28T 4S User Manual P N 1072835 REV 00 01 ISS 14JUL14 ...
Страница 41: ...41 3 Press the Apply button to save running configuration to startup configuration ...
Страница 145: ...145 Figure 4 6 2 Before Applying the STA Rules In this example only the default STP values are used ...
Страница 166: ...166 Figure 4 7 4 Multicast Flooding ...
Страница 255: ...255 The page includes the following fields Object Description DHCP Snooping Display the current DHCP snooping status ...
Страница 260: ...260 Buttons Click to clear the statistics Click to refresh the statistics ...
Страница 282: ...282 Figure 4 9 66 Global DoS Setting Page Screenshot ...
Страница 296: ...296 ...
Страница 303: ...303 ...