12-24 
Examples 
# Set the capacity of the token bucket to 50 and the update period to 100 milliseconds. 
<Sysname> system-view 
[Sysname] ipv6 icmp-error bucket 50 ratelimit 100 
ipv6 icmpv6 multicast-echo-reply enable 
Syntax 
ipv6 icmpv6 multicast-echo-reply enable 
undo ipv6 icmpv6 multicast-echo-reply 
View 
System view 
Default Level 
2: System level 
Parameters 
None 
Description 
Use the ipv6 icmpv6 multicast-echo-reply enable command to enable sending of multicast echo 
replies.  
Use the undo ipv6 icmpv6 multicast-echo-reply command to disable sending of multicast echo 
replies. 
By default, the AP is disabled from sending multicast echo replies. 
Examples 
# Enable sending of multicast echo replies. 
<Sysname> system-view 
[Sysname] ipv6 icmpv6 multicast-echo-reply enable 
ipv6 mtu 
Syntax 
ipv6 mtu mtu-size 
undo ipv6 mtu 
View 
VLAN interface view 
Default Level 
2: System level 
Parameters 
mtu-size: Size of the maximum transmission units (MTUs) of an interface in bytes. The value ranges 
from 1280 to 1500. 
Description 
Use the ipv6 mtu command to set the MTU of IPv6 packets sent over an interface.