1-21
Examples
# Display the router ID.
<Sysname> display router id
Configured router ID is 1.1.1.1
router id
Syntax
router id router-id
undo router id
View
System view
Default Level
2: System level
Parameters
router-id
: Router ID, expressed as an IPv4 address.
Description
Use the
router id
command to configure a router ID.
Use the
undo
router id
command to remove the router ID.
By default, no router ID is configured.
Some routing protocols use a router ID to identify a routing device. A route ID is selected in the
following sequence:
z
Select the router ID configured with the
router id
command;
z
Select the highest IP address among loopback interfaces as the router ID:
z
If no loopback interface IP address is available, the highest IP address among physical
interfaces is selected as the router ID (regardless of the interface state).
z
If the interface whose IP address is the router ID is removed or modified, a new router ID is
selected. Other events, (the interface goes down; after a physical interface’s IP address is
selected as the router ID, an IP address is configured for a loopback interface; a higher
interface IP address is configured) will not trigger a router ID re-selection.
z
A VPN instance selects a router ID among interfaces belonging to it according to the preceding
procedure.
z
After a router ID is changed, you need to use the reset command to make it effective.
Examples
# Configure a router ID.
<Sysname> system-view
[Sysname] router id 1.1.1.1
reset ip routing-table statistics protocol
Syntax
reset ip routing-table statistics protocol
[
vpn-instance vpn-instance-name
]
{
protocol
|
all
}
