User Manual

OSPF and OSPFv3
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M4200 and M4300 Series ProSAFE Managed Switches Web Management User Manual
6. In the OSPF Interface Selection area of the page, from the list in the Interface field, select
the interface for which you want to display statistics.
7. To refresh the page with the latest information on the switch, click the Update button.
8. To clear all the statistics of the OSPF interface, click the Clear button.
The following table describes the nonconfigurable OSPF Interface Statistics data that is
displayed.
Table 132. OSPF Interface Statistics
Field Description
OSPF Area ID The OSPF area to which the selected router interface belongs. An
OSPF area ID is a 32 bit integer in dotted-decimal format that uniquely
identifies the area to which the interface connects.
Area Border Router Count The total number of area border routers reachable within this area. This
is initially zero, and is calculated in each SPF pass.
AS Border Router Count The total number of autonomous system border routers reachable
within this area. This is initially zero, and is calculated in each SPF
pass.
Area LSA Count The total number of link state advertisements in this area's link state
database, excluding AS external LSAs.
IP Address The IP address of the interface.
Interface Events The number of times the specified OSPF interface changed its state, or
an error occurred.
Virtual Events The number of state changes or errors that occurred on this virtual link.
Neighbor Events The number of times this neighbor relationship changed state, or an
error occurred.
Sent Packets The number of OSPF packets transmitted on the interface.
Received Packets The number of valid OSPF packets received on the interface.
Discards The number of received OSPF packets discarded because of an error
in the packet or an error in processing the packet.
Bad Version The number of received OSPF packets whose version field in the
OSPF header does not match the version of the OSPF process
handling the packet.
Source Not on Local Subnet The number of received packets discarded because the source IP
address is not within a subnet configured on a local interface.
Virtual Link Not Found The number of received OSPF packets discarded where the ingress
interface is in a non-backbone area and the OSPF header identifies the
packet as belonging to the backbone, but OSPF does not have a virtual
link to the packet's sender.
Area Mismatch The number of OSPF packets discarded because the area ID in the
OSPF header is not the area ID configured on the ingress interface.