ZyXEL Communications IES-1248-51, User Manual

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IES-1248-51 User’s Guide
Chapter 42 IEEE 802.1Q Tagged VLAN Commands 267
1 An untagged frame comes in from the LAN.
2 The IES-1248-51 checks the frame’s source MAC address against the MAC filter.
3 The IES-1248-51 checks the PVID table and assigns a VID and IEEE 802.1Q priority.
4 The IES-1248-51 ignores the port from which the frame came, because the IES-1248-51
does not send a frame to the port from which it came. The IES-1248-51 also does not
forward frames to “forbidden” ports.
5 If after looking at the SVLAN, the IES-1248-51 does not have any ports to which it will
send the frame, it drops the frame.
42.4.5 VLAN Frame Type Command
Syntax:
ras> switch vlan frametype <portlist> <all|tag>
where
This command sets the specified DSL ports to accept VLAN tagged Ethernet frames, or both
tagged and untagged Ethernet frames.
Note: The IES-1248-51 accepts both tagged and untagged incoming frames on the
Ethernet ports.
The following example sets the IES-1248-51 to accept only VLAN tagged Ethernet frames on
DSL port 3.
42.4.6 VLAN CPU Show Command
Syntax:
ras> switch vlan cpu show
<portlist> =
You can specify a single DSL port <1>, all DSL ports <*> or a
list of DSL ports <1,3 >. You can also include a range of DSL
ports <1,5,6~10>.
<all|tag> =
Use
tag
to have the specified port(s) accept only incoming
Ethernet frames that have a VLAN tag.
Use
all
to have the specified port(s) accept both tagged and
untagged incoming Ethernet frames.
Figure 136 VLAN Frame Type Command Example
ras> switch vlan frametype 3 tag