Service Manual

Usage Information
The tunnel interface is inoperable without a valid tunnel destination address for the congured Tunnel mode.
To establish a logical tunnel to the particular destination address, use the destination address of the outer
tunnel header. If you congure a tunnel interface or source address, the tunnel destination must be
compatible.
tunnel dscp
Congure the method to set the DSCP in the outer tunnel header.
C9000 Series
Syntax
tunnel dscp {mapped | value}
To use the default tunnel mapping behavior, use the no tunnel dscp value command.
Parameters
mapped Enter the keyword mapped to map the original packet DSCP (IPv4)/Trac Class
(IPv6) to the tunnel header DSCP (IPv4)/Trac Class (IPv6) depending on the
mode of tunnel.
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 mapping of original packet DSCP (IPv4)/Trac
Class (IPv6) to the tunnel header DSCP (IPv4)/Trac Class (IPv6) depending on
the mode of tunnel.
Defaults 0 (Mapped)
Command Modes INTERFACE TUNNEL (conf-if-tu)
Command History
Version Description
9.9(0.0) Introduced on the C9010.
9.8(0.0) Introduced on the S3048-ON and S4048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.5(0.1) Introduced on the Z9500.
9.3(0.0) Introduced on the S6000, S4810, S4820T, Z9000.
Usage Information
This command congures the method used to set the high 6 bits (the dierentiated services codepoint) of
the IPv4 TOS or the IPv6 trac class in the outer IP header.
A value of 0 copies original packet DSCP (IPv4)/Trac Class (IPv6) to the tunnel header DSCP (IPv4)/
Trac Class (IPv6) depending on the mode of tunnel.
Tunneling
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