FD 100/320Gbps NT and FX NT IHub Services Guide Virtual Private Routed Network Service
Issue: 13 3HH-11985-AAAA-TQZZA 523
7.10.10.4 blackhole-aggregate
Table 541 blackhole-aggregate command
7.10.10.5 interface
Table 542 interface command
Parameters ip-prefix — The IP prefix in dotted decimal notation for the range used by the ABR to advertise
that summarizes the area into another area.
Values: 0.0.0.0 — 255.255.255.255
mask — The subnet mask for the range expressed as a decimal integer mask length or in
dotted decimal notation.
Values: 0 — 32 (mask length), 0.0.0.0 — 255.255.255.255 (dotted decimal)
advertise | not-advertise — Specifies whether or not to advertise the summarized range of
addresses into other areas. The advertise keyword indicates the range will be advertised, and
the keyword not-advertise indicates the range will not be advertised.
The default is advertise.
Item Description
(2 of 2)
Item Description
Syntax [no] blackhole-aggregate
Context configure>service>vprn>ospf>area
Description This command installs a low priority blackhole route for the entire aggregate. Exisiting routes
that make up the aggregate will have a higher priority and only the components of the range
for which no route exists are blackholed.
It is possible that when performing area aggregation, addresses may be included in the range
for which no actual route exists. This can cause routing loops. To avoid this problem configure
the blackhole aggregate option.
Use the no form of this command to remove this option.
Default blackhole-aggregate
Item Description
Syntax [no] interface ip-int-name
Context configure>service>vprn>ospf>area
(1 of 2)
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