Reference Guide

tunnel dscp
Configure the method to set the DSCP in the outer tunnel header.
S4820T
Syntax
tunnel dscp {mapped | value}
To use the default tunnel mapping behavior, use the no tunnel dscp {mapped |
value} command.
Parameters
mapped Enter the keyword mapped to map IPv6 traffic class/IPv4 DSCP to
the IPv4 DCSP\IPv6 traffic class. This option copies the IPv6 traffic
class/IPv4 DSCP in the encapsulated packet to the tunnel header.
value Enter a value to set the DSCP value in the tunnel header. The range is
from 0 to 63. The default value of 0 denotes mapped traffic.
Defaults 0 (Mapped using IPv6 traffic)
Command Modes INTERFACE TUNNEL (conf-if-tu)
Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
The following is a list of the FTOS version history for this command.
Version 9.2(0.2) Introduced on the Z9000, S4810, and S4820T.
Usage
Information
• This command configures the method used to set the high 6 bits (the differentiated
services codepoint) of the IPv4 TOS or the IPv6 traffic class in the outer IP header.
• A value of 0 copies the original packet DSCP (IPv4) or Traffic Class (IPv6) to the tunnel
header DSCP or Traffic Class. DSCP or Traffic Class depends on the tunnel mode.
tunnel flow-label
Configure the method to set the IPv6 flow label value in the outer tunnel header.
S4820T
Syntax
tunnel flow—label value
To return to the default value of 0, use the no tunnel flow—label value command.
Parameters
value Enter a value to set the IPv6 flow label value in the tunnel header. The
range is from 0 to 1048575. The default value is 0. .
Defaults 0 (Mapped using original packet flow-label value to the tunnel header flow-label value.)
1372