Allied Telesis AT-8824 Guía de instalación Pagina 13

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Software Version 2.7.5 13
Software Version 2.7.5
C613-10454-00 REV A
Reflecting TOS onto L2TP-tunnelled
Packets
Quality of Service (QoS) for L2TP-tunnelled packets on VPN networks has
been enhanced. Software Version 2.7.5 enables the router or switch to reflect the
TOS/DSCP field of the IP packet’s header onto the encapsulating L2TP IP
header.
The IP packet’s TOS/DSCP field indicates the desired QoS for the IP packet.
Copying this onto the encapsulating L2TP IP header means that the tunnelled
packet reflects the original IP packet’s QoS information. Networking
equipment can then use this information to apply QoS to the encapsulated
packet in the same way they would to the original packet.
You can turn on this feature for particular L2TP calls, using one of the
commands:
ADD L2TP CALL=name [TOSreflect={ON|OFF|Yes|No|True|False}]
[other-options...]
SET L2TP CALL=name [TOSreflect={ON|OFF|Yes|No|True|False}]
[other-options...]
You can turn on this feature for particular L2TP tunnel destination IP
addresses, using the command:
ADD L2TP IP=ipadd[-ipadd] PPPTemplate=ppp-template
[TOSreflect={ON|OFF|Yes|No|True|False}]
[other-options...]
You can turn on this feature for particular L2TP users, using one of the
commands:
ADD L2TP USer={mapping|ALL|LOCAL|NONE|REMote}
[TOSreflect={ON|OFF|Yes|No|True|False}]
[other-options...]
SET L2TP USER={mapping|ALL|LOCAL|NONE|REMote}
[TOSreflect={ON|OFF|Yes|No|True|False}]
[other-options...]
Command changes
The following table summarises the modified commands (see Command
Reference Updates).
Command Change
add l2tp call New tosreflect parameter
set l2tp call New tosreflect parameter
show l2tp call New tosreflect field
add l2tp ip New tosreflect parameter
show l2tp ip New tosreflect field
add l2tp user New tosreflect parameter
set l2tp user New tosreflect parameter
show l2tp user New tosreflect field
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