IP Router Configuration 
7705 SAR OS Router Configuration Guide 199
Clear Commands
arp
Syntax arp {all | ip-addr | interface {ip-int-name | ip-addr}}
Context clear>router
Description This command clears all or specific ARP entries. 
The scope of ARP cache entries cleared depends on the command line option(s) specified.
Parameters all — clears all ARP cache entries
ip-addr — clears the ARP cache entry for the specified IP address
ip-int-name — clears all ARP cache entries for the IP interface with the specified name
interface ip-addr — clears all ARP cache entries for the IP interface with the specified IP address
authentication
Syntax authentication statistics [interface {ip-int-name | ip-address}]
Context clear>router
Description This command clears router authentication statistics.
Parameters ip-int-name — clears the statistics for the specified interface name
Values 32 characters maximum
ip-address — clears the statistics for the specified IP address
Values a.b.c.d
bfd
Syntax bfd
Context clear>router
Description This command enables the context to clear bidirectional forwarding (BFD) sessions and statistics.