Configuration Commands
157
OSPF MD5 Key configuration
The following table describes the OSPF MD5 Key Configuration commands.
Table 138 OSPF MD5 Key Configuration commands
Command Description
message-digest-key <1-255> md5-key
<key string>
Sets the authentication key for this OSPF packet.
Command mode: Router OSPF
no message-digest-key <1-255>
Deletes the authentication key for this OSPF packet.
Command mode: Router OSPF
show ip ospf message-digest-key
<1-255>
Displays the current MD5 key configuration.
Command mode: All except User EXEC
IGMP configuration
IGMP Snooping allows the switch to forward multicast traffic only to those ports that request it. IGMP
Snooping prevents multicast traffic from being flooded to all ports. The switch learns which server hosts
are interested in receiving multicast traffic, and forwards it only to ports connected to those servers.
IGMP Snooping configuration
The following table describes the IGMP Snooping Configuration commands.
Table 139 IGMP Snooping commands
Command Description
ip igmp snoop timeout <1-255>
Sets the Maximum Response Time (MRT) for IGMP hosts. MRT is one
of the parameters used to determine the age out period of the IGMP
hosts. Increasing the timeout increases the age out period.
The range is from 1 to 255 seconds. The default is 10 seconds.
Command mode: Global configuration
ip igmp snoop mrouter-timeout
<1-600>
Configures the age-out period for the IGMP Mrouters in the Mrouter
table. If the switch does not receive a General Query from the
Mrouter for mrto seconds, the switch removes the multicast router
from its Mrouter table.
The range is from 1 to 600 seconds. The default is 255 seconds.
Command mode: Global configuration
ip igmp snoop query-interval
<1-600>
Sets the IGMP router query interval. The range is 1-600 seconds. The
default value is 125.
Command mode: Global configuration
ip igmp snoop robust <2-10>
Configures the IGMP Robustness variable, which allows you to tune
the switch for expected packet loss on the subnet. If the subnet is
expected to be lossy (high rate of packet loss), then increase the
value. The default value is 2.
Command mode: Global configuration
