Nortel 5399 User Manual page 29

Book A
Model 5399 Remote Access Concentrator Network Administrator's Guide for UNIX
Table B-9. Fields in the netstat –r Command Display (continued)
Field Explanation
Second
flag
(Source) The route was learned via an ICMP redirect. This can occur
C only when IP routing is disabled (by setting the routed
parameter to N).
I The route is an interface route.
R The route was learned via RIP.
S The route is a static route, learned from a route defined in the
gateway section of the 5399 RAC configuration file or a
route entered using the CLI superuser route command.
Third flag
H
The route is a hardwired static route.
p This is used to define a private route back to the load host.
This flag is not valid if the 5399 is on the same subnet as the
load host.
Usage A positive or negative integer indicating a route's usage.
When RIP adds a route to the routing table, it sets its usage
value to 0. Every time the route is used RIP adds one to the
value; every thirty seconds RIP subtracts one from the value.
When the routing table reaches its maximum size of 256
entries, RIP removes the route with the lowest usage value. If
there is a tie, RIP removes the first route listed. The values
range from -9999999, for a route that has not been used in 9.5
years, to +9999999, for a very frequently used route.
Interface, hardwired, and extremely frequently used routes
contain the word fixed in this field instead of a number.
UseCount A positive integer indicating the number of times the route
has been used to transmit a packet. If you subtract the value
in this field from the value of Usage, you can determine how
long a route has been in the routing table.
Mtr The metric for the route.
Interface The interface over which the 5399 RAC can reach the next
hop.
Chapter 1 Network Administration
A-25