3Com 7757 Configuration Manual page 344

344 C 35: IS-IS C
HAPTER ONFIGURATION
Enabling/Disabling
Packet Transmission
Through an Interface
Resetting all IS-IS
Configuration Data
Table 282 Configure SPF calculation durations
Operation
Enter IS-IS view
Configure SPF
calculation duration
Configuring SPF to release CPU resources automatically
In IS-IS, SPF calculation may occupy system resources for a long time and slow
down console response. To avoid this, you can configure SPF to automatically
release CPU resources each time a specified number of routes are processed and
continue to calculate the remaining routes after one second.
Table 283 Configure SPF to release CPU resources automatically
Operation
Enter system view
Enter IS-IS view
Configure the interval at
which SPF releases CPU
resources
To prevent IS-IS routing information from being accessed by a router on another
network, use the silent-interface command to configure the VLAN interface
containing the network segment to receive, but not to send, IS-IS packets.
Table 284 Enable/disable packet transmission through an interface
Operation
Enter system view
Enter IS-IS view
Disable an interface from
sending IS-IS packets
Perform the following configuration in user view to refresh LSPs immediately.
Table 285 Reset all IS-IS configuration data
Operation
Enter system view
Reset all IS-IS configuration
data
Command
isis [ tag ]
spf-slice-size seconds
Command
system-view
isis [ tag ]
spf-delay-interval number
Command
system-view
isis [ tag ]
silent-interface
interface-type
interface-number
Command
system-view
reset isis all
Description
Required
Optional
By default, SPF calculation is not
sliced.
Description
-
Required
Optional
By default, in IS-IS, SPF releases
CPU resources each time it has
finished processing 5,000
routes.
Description
-
Required
Optional
By default, an interface is
enabled to receive and send IS-IS
packets.
Description
-
Optional
By default, IS-IS configuration
data is not cleared.