3com 4500 26-PORT User Manual

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C
HAPTER
 6: U
SING
 R
OUTING
 P
ROTOCOL
 C
OMMANDS
The information displayed includes the route state, the verbose description of each 
route and the statistics of the entire routing table.
All current routes, including inactive routes and invalid routes, are displayed.
Example
To display the verbose routing table information, enter the following:
<4500>display ip routing-table verbose
The information displays in the following format:
Routing Tables:
  + = Active Route, - = Last Active, # = Both    * = Next hop in use
  Destinations: 3       Routes: 3
  Holddown: 0    Delete: 62      Hidden: 0
**Destination: 1.1.1.0           Mask: 255.255.255.0
         Protocol: #DIRECT       Preference: 0
         *NextHop: 1.1.1.1          Interface: 
1.1.1.1(Vlan-interface1)
         State: <Int ActiveU Retain Unicast>
         Age: 20:17:41   Cost: 0/0
**Destination: 1.1.1.1           Mask: 255.255.255.255
         Protocol: #DIRECT       Preference: 0
         *NextHop: 127.0.0.1        Interface: 127.0.0.1(InLoopBack0)
         State: <NoAdvise Int ActiveU Retain Gateway Unicast>
         Age: 20:17:42   Cost: 0/0
**Destination: 2.2.2.0           Mask: 255.255.255.0
         Protocol: #DIRECT       Preference: 0
         *NextHop: 2.2.2.1          Interface: 
2.2.2.1(Vlan-interface2)
         State: <Int ActiveU Retain Unicast>
         Age: 20:08:05   Cost: 0/0
The meaning of route state is defined in 
. Other generated information is 
described in 
Static Route 
Configuration 
Command
This section describes the command you can use to configure a static route.
Table 21   Output Description of the 
display ip routing-table verbose
 Command
Descriptor
Meaning
Holddown
The number of holddown routes.
This refers to a route advertising policy that some distance vector routing 
protocols (such as RIP) use to avoid expansion of error routes and to improve 
the transmission speed and accuracy of unreachable routes. It usually 
advertises a static route at an interval, regardless of the changes to dynamic 
routes to the same destination
.
 For details, see the specific routing protocol.
Delete
The number of deleted routes.
Hidden
The number of hidden routes, that is routes not available at present but still 
required. They can be hidden for future use.