3Com S7906E Command Reference Manual page 1469

Parameters
ipv6-address: Clears the routing flap statistics for the specified IPv6 address.
prefix-length: Prefix length of the IPv6 address, in the range 1 to 128.
as-path-regexp: Clears the routing flap statistics for routes matching the AS path regular expression.
as-path-acl-number: Clears the routing flap statistics for routes matching the AS path ACL. The value of
this argument is in the range of 1 to 256.
Description
Use the reset bgp ipv6 multicast flap-info command to clear IPv6 MBGP routing flap statistics.
If no parameters are specified, the flap statistics of all the routes will be cleared
Examples
# Clear the flap statistics of all routes matching AS path ACL 10.
<Sysname> reset bgp ipv6 multicast flap-info as-path-acl 10
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