Administrator Guide

A value of 0 copies original packet DSCP (IPv4)/Traffic Class (IPv6) to the tunnel
header DSCP (IPv4)/Traffic Class (IPv6) depending on the mode of tunnel.
tunnel flow-label
Configure the method to set the IPv6 flow label value in the outer tunnel header.
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 original packet flow-label value to tunnel header flow-label value)
Command
Modes
INTERFACE TUNNEL (conf-if-tu)
Command
History
Version Description
9.7(0.0) Introduced on the S6000-ON.
9.3(0.0) Introduced on the S6000, S4810, S4820T, Z9000.
Usage
Information
This command is only valid for tunnel interfaces with an IPv6 outer header.
tunnel hop-limit
Configure the method to set the IPv4 time-to-live or the IPv6 hop limit value in the outer tunnel header.
Syntax
tunnel hop-limit value
To restore the default tunnel hop-limit, use the no tunnel hop-limit
command.
Parameters
value Enter the hop limit (ipv6) or time-to-live (ipv4) value to
include in the tunnel header. The range is from 0 to 255. The
default is 64.
Defaults 64 (Time-to-live for IPv4 outer tunnel header or hop limit for IPv6 outer tunnel
header)
1654
Tunneling