Cyclades-PR2000
OSPF Menu (continued)
External Metric | Defines the metric that will be advertised by OSPF. |
External Metric Type | For Type 1, the total metric of this route is composed of the internal metric (inside the |
| autonomous system) and the external metric (provided in the previous parameter). For |
| Type 2, the total metric of this route is the value provided in the previous parameter. |
Parameters that apply only when OSPF on This Interface is Enable or Enable Inactive. | |
Area ID | Identifies the area to which the interface belongs. Areas are created here, then later |
| defined in CONFIG=>IP=>OSPF =>AREA. Has the format of an IP address, but is not |
| linked to any IP address in the system. Small OSPF networks will typically have only |
| one area (the backbone area represented by 0.0.0.0). |
Router Priority | Priority used by OSPF in multicast networks to elect the designated router. A priority of |
| 1 will make this router the most likely to be chosen. A priority of 2 will make it second |
| most likely. Set it to 0 (zero) if this router should never be the designated router. |
Transit Delay in | Estimated transit time in seconds to route a packet through this interface. Use the |
Seconds | preset value (1) or increase the number for slow links |
Retransmit Interval * | Time in seconds between |
| belonging to this interface. |
Hello Interval * | Time in seconds between the hello packets on this interface. |
Dead Interval * | Inactivity time (seconds) before a neighbor router is considered down. |
Poll Interval * | Time in seconds between the hello packets sent to an inactive, |
| access neighbor. |
Password * | String of up to 8 characters used to authenticate OSPF packages. The use of this |
| password is enabled in CONFIG=>IP=>OSPF=>AREA=>AUTHENTICATION TYPE |
Metric | Defines the cost for normal service. For consistent routing, this parameter should be |
| determined in the same manner for all routers in the OSPF Area. Normally, metric cost |
| is defined as an inverse function of interface throughput (e.g. 1 for 100Mbps, 10 for |
| 10Mbps, 65 for T1, 1785 for 56kbps, etc). |
Advertise Secondary | Causes the router to advertise additional addresses assigned to this interface. These |
IP Address | are configured in CONFIG => INTERFACE =><LINK> =>NETWORK PROTOCOL =>IP. |
* Inside a given area, these 4 parameters should be the same for all routers.
Chapter 9 - Routing Protocols | 71 |
