Westermo U200 Installation guide - Manual (Page 26)

V4.2
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U/R/T200 series
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all IGMP enabled switches and routers in the network have this configuration. This is
the default IGMP settings.
- “Auto mode” enabled + Querier disabled: same operation as above, but the switch
cannot act as an IGMP Querier.
- “Auto mode” disabled + Querier enabled: the switch will always act as an IGMP Querier.
Each switch/router will act as IGMP Querier if this configuration is used on each
switch/router in the network.
The interval between two IGMP query packets can also be set in the IP configuration tool.
Four intervals are possible: [12, 30, 70, 150] seconds.
The user can also specify the switch trunk ports in the IGMP snooping parameter section.
IGMP information is forwarded on the port towards the IGMP Querier and on the switch trunk
ports. It might be required that the user defines the trunk ports in a network where no
protocol for network redundancy is running (e.g. FRNT or STP), see the Operator Manual for
details about this.
Press the ‘Set’ button and then the ‘Reset’ button to restart the Switch after any changes
performed on the IGMP parameters.
4.13 VLAN
The R/T200 can be enabled for VLAN by ticking the “VLAN” tick box, while the “VLAN
configuration” dialog shows the VLAN parameters, see Figure 15. The following VLAN
parameters can be set:
- Default VLAN per port, “Standard VLANs: [White, Red, Blue, Green, Yellow, Brown,
Pink]; the default VLAN for a given port is the only VLAN available for the port if the end
node connected to the port is unable to send and receive tagged packets.
- The Standard VLAN id’s is by default as follows:
o White VLAN id = 1
o Red VLAN id = 2
o Blue VLAN id = 3
o Green VLAN id = 4
o Yellow VLAN id = 5
o Brown VLAN id = 6
o Pink VLAN id = 7
These VLAN id’s can be changed. Legal range is: [1..4096].
- Four Additional VLANs per port can be set, “Additional VLANs : [Purple, Violet, Cyan,
Magenta]. A non-trunk port cannot use any of the “Additional VLAN’s as the default
VLAN for the given port.
- The “Additional VLAN id’s is by default as follows:
o Purple VLAN id = 8
o Violet VLAN id = 9
o Cyan VLAN id = 10
o Magenta VLAN id = 11
- Layer 2 priority [0..7] for each VLAN can be set; where priority = [0..3] means low priority
and priority = [4..7] means high priority.
- Remove tag; tag removal on egress port (i.e. on port output) can be set per port. Tag
removal is enabled per default on non-trunk ports.
The trunk ports are member of all seven “Standard VLANs” and the four “Additional VLANs”,
and the packet tag is kept on the packets sent on such ports. The VLAN parameters for a
trunk port cannot be changed.
The VLAN that is selected as the default VLAN for a given port will appear as a VLAN that
cannot be changed. Other VLANs selected for the same port have only relevance in case the