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A P P E N D I X B
VLAN configuration can be verified by using the following
command:
show vlan <name>
The solution for this error is to remove ports 1 and 2 from the VLAN
currently using untagged traffic on those ports. If this were the
“default” VLAN, the command would be
localhost:23 # config vlan default del port
1:1,1:2
which should now allow you to re-enter the previous command
without error as follows:
localhost:26 # config vlan red add port 1:1,1:2
VLAN names:
There are restrictions on VLAN names. They cannot contain white
spaces and cannot start with a numeric value unless you use
quotation marks around the name. If a name contains white spaces,
starts with a number, or contains non-alphabetical characters, you
must use quotation marks whenever referring to the VLAN name.
802.1Q links do not work correctly:
Remember that VLAN names are only locally significant through
the command-line interface. For two switches to communicate
across a 802.1Q link, the VLAN ID for the VLAN on one switch
should have a corresponding VLAN ID for the VLAN on the other
switch.
If you are connecting to a third-party device and have checked that
the VLAN IDs are the same, the Ethertype field used to identify
packets as 802.1Q packets may differ between the devices. The
default value used by the switch is
8100
. If the third-party device
differs from this and cannot be changed, change the 802.1Q
Ethertype used by the switch with the following command:
config dot1p ethertype <ethertype>
Changing this parameter changes how the system recognizes all
tagged frames received, as well as the value it inserts in all tagged
frames it transmits.
Summary of Contents for 480T
Page 16: ...14 P R E F A C E...
Page 88: ...86 C H A P T E R 4 Configuring Switch Ports...
Page 112: ...110 C H A P T E R 5 Virtual LANs VLANs...
Page 152: ...150 C H A P T E R 8 Quality of Service QoS...
Page 166: ...164 C H A P T E R 9 Enterprise Standby Router Protocol...
Page 198: ...196 C H A P T E R 1 0 IP Unicast Routing...
Page 228: ...226 C H A P T E R 1 1 RIP and OSPF...
Page 254: ...252 C H A P T E R 1 3 IPX Routing...
Page 274: ...272 C H A P T E R 1 4 Access Policies...
Page 296: ...294 C H A P T E R 1 6 Using Web Device Manager...
Page 320: ...318 A P P E N D I X A...
Page 328: ...326 A P P E N D I X B...
Page 346: ...344 A P P E N D I X C...
Page 358: ...356 I N D E X...
Page 366: ...364 I N D E X...