HP ProCurve 5300xl Series Management Manual page 530

IP Routing Features
Configuring OSPF
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Authentication-key: OSPF supports two methods of authentication for each
VLAN—simple password and MD5. In addition, the value can be set to none,
meaning no authentication is performed. Only one method of authentication
can be active on a subnet at a time. The default authentication value is none.
The two authentication methods are configured by different commands:
Simple password – Use the ip ospf authentication-key <password>
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command. The simple password method of authentication requires you
to configure an alphanumeric password on an interface. The simple
password setting takes effect immediately. All OSPF packets transmitted
on the interface contain this password. Any OSPF packet that is received
on the interface is checked for this password. If the password is not
present, then the packet is dropped. The password can be up to eight
characters long.
MD5 – Use the ip ospf md5-auth-key-chain <chain-name-str> command. The
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MD5 method of authentication uses key chains that you configure through
the Key Management System (KMS – described in your switch Security
Guide). The <chain-name-str> is the name of the key chain that you have
previously configured by using the KMS commands.
Cost: Indicates the overhead required to send a packet across an interface.
You can modify the cost to differentiate between 100 Mbps and 1000 Mbps (1
Gbps) links. The default cost is always 1.
Dead-interval: Indicates the number of seconds that a neighbor router waits
for a hello packet from the current switch before declaring the switch down.
The value can be from 1 – 2,147,483,647 seconds. The default is 40 seconds.
Hello-interval: Represents the length of time between the transmission of
hello packets. The value can be from 1 – 65535 seconds. The default is 10
seconds.
Priority: 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 (with 255 as the highest
priority). The default is 1. If you set the priority to 0, the switch does not
participate in DR and BDR election.
Retransmit-interval: The time between retransmissions of link-state adver­
tisements (LSAs) to adjacent routers for this interface. The value can be from
0 – 3600 seconds. The default is 5 seconds.
Transit-delay: 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.