Extreme Networks ExtremeWare XOS 11.3, Руководство пользователя

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IPv4 Unicast Routing
ExtremeWare XOS 11.3 Concepts Guide
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For example, if the following policy file is used as a UDP forwarding profile, any packets destined for
UDP port 67 will be sent to IP address 20.0.0.5 AND flooded to VLAN
to7 :
entry one {
if match all {
destination-port 67 ;
} then {
destination-ipaddress 20.0.0.5 ;
}
}
entry two {
if match all {
destination-port 67 ;
} then {
vlan "to7" ;
}
}
If you include more than one VLAN set attribute or more than one destination-ipaddress set attribute in
one policy entry, the last one will be accepted and the rest ignored. Therefore, you can have two valid
set statements in each entry of a UDP forwarding policy; one a destination-ipaddress and one a VLAN.
ExtremeWare XOS currently allows a maximum of eight entries in a UDP forwarding policy, so you can
define a maximum of sixteen destinations for one inbound broadcast UDP packet: eight IP address and
eight VLANs.
NOTE
It is strongly advised not to have more than eight entries in a UDP forwarding profile. The UDP forwarding module
will process those entries even if the entries do not contain any attributes for UDP forwarding. Having more than
eight entries will drastically reduce the performance of the system. If the inbound UDP traffic rate is very high,
having more than eight entries could cause the system to freeze or become locked.
NOTE
If you rename a VLAN referred to in your UDP forwarding profile, you must manually edit the policy to reflect the
new name, and refresh the policy.
You can also validate whether the UDP profile has been successfully associated with the VLAN by
using the command
show policy {<policy-name> | detail}
. UDP forwarding is implemented as
part of the netTools process, so the command will display netTools as a user of the policy.
To remove a policy, use the none form of the following command:
configure vlan <vlan_name> udp-profile [<profilename> | none]
or use this command:
unconfigure vlan <vlan_name> udp-profile
For more information about creating and editing policy files, see Chapter 12 , “Policy Manager” . For
more information about ACL policy files, see Chapter 13 , “Access Lists (ACLs)” .