3com MSR 20-20 참조 매뉴얼

C

HAPTER

 74: IS-IS C

ONFIGURATION

 C

OMMANDS

interlevel: Allows advertising IP address prefixes learnt from different IS-IS levels 
with the allow keyword specified.

external: Allows advertising IP address prefixes learnt from other routing 
protocols with the allow keyword specified.

Use the set-overload command to set the overload tag for the current router.

Use the undo set-overload command to clear the overload tag.

No overload flag is set by default.

When the overload flag is set for a router, the routes calculated by the router will 
be ignored by other routers when they calculate SPF. (But the routes directly 
connected to the router will not be ignored.)

When a router is set overload tag, other routers will not send packets to the router 
for forwarding.

# Set overload flag on the current router.

<Sysname> system-view

[Sysname] isis

[Sysname-isis-1] set-overload 

spf-slice-size duration-time

IS-IS view

duration-time: Specifies the duration in milliseconds of each sliced SPF calculation, 
ranging from 10 to 50000. Each sliced SPF calculation is ended when the duration 
time is reached. If the duration-time is set to 0, the entire SPF calculation will not 
be sliced.

Use the spf-slice-size command to specify the duration for each sliced SPF 
calculation.

Use the undo spf-slice-size command to restore the default.

The default SPF calculation duration is 10 milliseconds.

To prevent the SPF calculation from occupying the system resources for a long 
time, you can use this command to slice the whole SPF calculation into pieces.

You are not recommended to change the default setting.

# Set the duration of each sliced SPF calculation to 1 second.