Dell PowerConnect B-RX Configuration Manual page 762

25
Configuring OSPF
Passive
Priority
Retransmit-interval
Transit-delay
Encrypted display of the authentication string or MD5 authentication key
The Brocade implementation of OSPF authentication is based on RFC 2328. The optional 0 | 1
parameter with the authentication-key and md5-authentication key-id parameters affects
encryption.
For added security, the device encrypts display of the password or authentication string. Encryption
is enabled by default. The software also provides an optional parameter to disable encryption of a
password or authentication string, on an individual OSPF area or OSPF interface basis.
When encryption of the passwords or authentication strings is enabled, they are encrypted in the
CLI regardless of the access level you are using. The encryption option can be omitted (the default)
or can be one of the following:
•
•
NOTE
If you want the software to assume that the value you enter is the clear-text form, and to encrypt
display of that form, do not enter 0 or 1. Instead, omit the encryption option and allow the software
to use the default behavior.
If you specify encryption option 1, the software assumes that you are entering the encrypted form
of the password or authentication string. In this case, the software decrypts the password or string
you enter before using the value for authentication. If you accidentally enter option 1 followed by
the clear-text version of the password or string, authentication will fail because the value used by
the software will not match the value you intended to use.
690
0 – Disables encryption for the password or authentication string you specify with the
command. The password or string is shown as clear text in the running configuration and the
startup configuration file. Use this option if you do not want display of the password or string to
be encrypted.
1 – Assumes that the password or authentication string you enter is the encrypted form, and
decrypts the value before using it.
When you configure an OSPF interface to be passive, that interface does
not send or receive OSPF route updates. By default, all OSPF interfaces
are active and thus can send and receive OSPF route information. Since a
passive interface does not send or receive route information, the interface
is in effect a stub network. OSPF interfaces are active by default.
NOTE: This option affects all IP subnets configured on the interface. If you
want to disable OSPF updates only on some of the IP subnets on
the interface, use the ospf-ignore or ospf-passive parameter with
the ip address command. Refer to
Ethernet port" on page 154.
Allows you to modify the priority of an OSPF router. The priority is used
when selecting the designated router (DR) and backup designated routers
(BDRs). The value can be from 0 – 255. The default is 1. If you set the
priority to 0, the BigIron RX does not participate in DR and BDR election.
The time between retransmissions of link-state advertisements (LSAs) to
adjacent routers for this interface. The value can be from 0 – 3600
seconds. The default is 5 seconds.
The time it takes to transmit Link State Update packets on this interface.
The value can be from
0 – 3600 seconds. The default is 1 second.
"Assigning an IP address to an
BigIron RX Series Configuration Guide
53-1001810-01