A customer uses eSight to back up configurations for network devices. It
is found that switch configurations can be properly backed up, but other
devices, such as routers, cannot.
1. Check that
network devices are managed by eSight, indicating that eSight is properly
interconnected with the NEs.
2. Check that the management address of the switch is on the same network
segment as that of the router. This indicates that the switch can be backed up
properly and the backup function (backup through FTP) on the eSight is normal.
3. On the router, use FTP to communicate with the eSight server. It is
found that the login and ping fail.
4. Check the
configuration of the management interface on the router. It is found that a VPN
instance is bound to the management interface. With the VPN instance, FTP can
be used to communicate with the eSight server.
are running on the router. Therefore, multiple static routes and default routes
need to be configured on the router. To prevent interference between services,
VPN multi-instance is configured, and a VPN instance is bound to the management
interface of the router.
When eSight uses FTP to back up configurations, the eSight server sends a
command FTP X.X.X.X (eSight address) to a device so that the device can log in
to eSight. The configuration file can be uploaded to back up configurations.
However, the delivered command does not contain a VPN instance. Therefore, data
configurations can be successfully backed up because switches are used for
access and are configured with a Layer 3 interface for management. Therefore,
no VPN instance is bound to the Layer 3 interface of the switch.
In the system
view of a device, run the set net-manager
vpn-instance XXX-XXXX command to
configure the default VPN instance used for the NMS to manage devices. The
device uses this default VPN instance to communicate with the NMS.
After the set net-manager vpn-instance command is
run to configure a VPN instance, this VPN instance is used by the FTP client, SFTP
client, SCP client, TFTP client, information center (IC) module, SNMP module,
and TACACS module.