HP ProCurve Secure Router 7203 dl Advanced Management And Configuration Manual page 923

C a u t i o n
Using the Web Browser Interface for Advanced Configuration Tasks
5. If your network uses very high speed connections, you may need to
change the reference bandwidth. The router uses the reference bandwidth
to calculate the cost for all connections on the router. It computes the
connection's cost by comparing its bandwidth to the reference bandwidth.
By default, the reference bandwidth is 100 Mbps. A 100 Mbps connection
will have a cost of one.) A connection cannot have a cost lower than one;
if your network has connections with a speed higher than 100 Mbps, you
can change the reference. Enter the new value, which can be between 1
and 4294967 Mbps, in the Reference Bandwidth field.
Do not alter timers unless you have experience with OSPF.
6. If necessary, you can alter the global OSP timers. (Table 14-7 shows the
default settings and valid ranges for these timers):
a. Enter a value for the LSA, or refresh, interval in the LSA Interval field.
The LSA interval dictates how often all router interfaces must send
periodic LSAs.
b. The two delay timers save processing power by preventing a router
from continuously calculating new best routes. Enter a value in the
Calculation Delay field to specify how long the router must wait after
a topological change before recalculating a route. Enter a value in the
Hold Time field to specify how long the router must wait between
calculations.
Table 14-7. Global OSPF Intervals
Interval Meaning
refresh the maximum time before
sending a new LSA
calculation delay the time between
receiving topological
changes and beginning
shortest path first (SFP)
calculations
hold time time between
consecutive SFP
calculations
7. After you have configured the parameters you desire, click Apply.
Default Range
240 seconds 10 to 1,800 (30 minutes)
5 seconds 0 to 4,294,967,295
10 seconds 10 to 1,800
Routing
14-123