3Com CoreBuilder 3500, Руководство по внедрению, Страница: 416 / 592

416 C
HAPTER
14: O
PEN
S
HORTEST
P
ATH
F
IRST
(OSPF)
OSPF Statistics
From the Administration Console and the Web Management interface,
you can display general statistics for specific OSPF interfaces. These
statistics provide valuable information useful in troubleshooting network
and system issues. For example, the number of SPF computations directly
corresponds to the number of topological changes that the interface had
to converge on. An excessive number of soft restarts may be an indication
that the router is overburdened because of resource limitations.
The following is a list of OSPF statistics:
■
SPF computations — Number of shortest-path-first computations
made. Each time that a router comes online, or each time there is a
change in topology, the router must perform SPF computations.
■
Memory failures — Number of nonfatal memory allocation failures.
■
LSAs transmitted — Number of link state advertisements
transmitted.
■
LSAs received — Number of link state advertisements received.
■
Route update errors — Number of nonfatal routing table update
failures.
■
Receive errors — Number of general receive errors.
■
External LSA changes — Number of external LSA changes made to
database.
■
Soft restarts — Number of OSPF router soft restarts due to
insufficient memory resources (implies a fatal memory allocation
failure). To fix this problem, change the OSPF memory partition with
the ip ospf partition modify option, add memory, or reconfigure the
network topology to generate smaller OSPF databases.