Avaya 580 사용자 설명서

Document No. 10-300077, Issue 2

12-13

Configuring IP Routing

Maximum 
Number of Routes

Enter the maximum number of routes that you want added 
to the routing table. The default number of routes is 16384.

Note: These routes refer only to IP Unicast entries.

Maximum 
Number of ARP 
Cache Entries

Enter the maximum number of ARP cache entries. ARP 
entries refers to the space available for the ARP cache. 
When you increase the number of entries, it may cause the 
table to be relearned more frequently. Consequently, it will 
make address space usage more efficient. The default 
maximum number of entries is 16384.

Route Preference 
by Protocol

This section describes the routing preferences set up 
according to the network administrator’s preferences. 
These preferences are normally set up using the most to 
least trust. For example, local routes are normally 
considered to have more trust or a higher preference, while 
OSPF external routes are considered to have less trust or a 
lower preference. These preferences can be overridden, 
but careful consideration must be given when setting each.

Local Routes must always have the higher 

preference. 

Do not change the Preferences unless you are 

certain of the consequences. Incorrect Preference 
settings can cause the switch to stop all routing. 

Local Routes

Enter a preference value for local routes.

Local Routes must always have the higher 

preference. 

High-Preference 
Static Routes

Enter a preference value for High preference static routes.

OSPF Intra-area 
Routes

Enter an OSPF intra-area route. A lower number indicates 
a lower preference for the path.

OSPF Inter-area 
Routes

Enter the inter-area paths to destinations in other OSPF 
areas. These are discovered through the examination of 
received summary Link State Advertisements (LSA). 
Enter a number to specify your path cost. A lower number 
indicates a lower preference for the path.

OSPF External 
Routes

Enter the number of external paths to destinations external 
to the Autonomous System (AS). These are detected 
through the examination of received AS external LSAs. 
Enter a number to specify your path cost (preference). A 
lower number indicates a lower preference for the path.