Software Version 2.8.1
89
Software Version 2.8.1
C613-10477-00 REV B
Open Shortest Path First Enhancements
Software Version 2.8.1 includes the following enhancements to OSPF:
■
OSPF Interface Password
■
NSSA Translator Role
■
Redistributing External Routes
This section describes the enhancements. The modified commands to
implement them are described in
Command Reference Updates
.
OSPF Interface Password
The option
none
has been added to the
password
parameter for the following
commands:
add ospf interface=interface [password={
none
|password}]
[other-options...]
set ospf interface=interface [password={
none
|password}]
[other-options...]
This allows you to remove a previously specified password from the OSPF
interface.
Command Changes
The following table summarises the modified commands:
NSSA Translator Role
An NSSA border router translates Type-7 LSAs into Type-5 LSAs. You can
configure the NSSA translator role of an NSSA border router using the
commands:
add ospf area={backbone|
area-number
} stubarea=nssa
nssastability=1..3600 nssatranslator={candidate|always}]
[
other-options...
]
set ospf area={backbone|
area-number
} stubarea=nssa
nssastability=1..3600 nssatranslator={candidate|always}]
[
other-options...
]
If you set
nssatranslator
to
always
, the NSSA router will unconditionally
translate Type-7 LSAs as long as it has NSSA border router status, regardless of
the translator state of other border routers in the NSSA. If it loses border router
status it will stop translating Type-7 LSAs until it regains border router status.
If you set
nssatranslator
to
candidate
, the NSSA router will take part in the
NSSA translator election process. The NSSA border router with the highest
router identifier is elected as the translator. Once elected, the border router will
translate Type-7 LSAs until it loses border router status or another NSSA
border router with a higher router identifier is elected as the translator.
Command
Change
add ospf interface
New
none
option for
password
parameter
set ospf interface
New
none
option for
password
parameter
