H3C S7500E Series Command Manual

Command Manual – IPv4 Routing
H3C S7500E Series Ethernet Switches Chapter 5 BGP Configuration Commands
5-63
5.1.76 router-id
Syntax
router-id router-id
undo router-id
View
BGP view
Parameters
router-id: Router ID in IP address format.
Description
Use the router-id command to specify a router ID.
Use the undo router-id command to remove the router ID.
To run BGP protocol, a router must have a router ID, which is an unsigned 32-bit integer,
the unique ID of the router in the AS.
You can specify a router ID manually. If not, the system selects an IP address as the
router ID. The selection sequence is the highest IP address among loopback interface
addresses; if not available, then the highest IP address of interfaces. It is
recommended to specify a loopback interface address as the router ID to enhance
network reliability.
Only when the interface with the selected Router ID or the manual Router ID is deleted
will the system select another ID for the router.
Examples
# Specifies the Router ID as 10.18.4.221.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] router-id 10.18.4.221
5.1.77 summary automatic
Syntax
summary automatic
undo summary automatic
View
BGP view

H3C S7500E Series Specifications

General

Brand	H3C
Model	S7500E Series
Category	Switch
Language	English