HP Intelligent Management Center Licenses - Manual (Page 134)

When you associate VPN with a PE interface, the interface automatically becomes down
and generates a Down alarm. Therefore, the iMC considers this a failed link.
•
If you have configured a PE to send Traps to the iMC, the iMC displays the link as
normal because it received an interface up alarm when the interface automatically
becomes up.
•
If you do not configure the PE to send Traps to the iMC but configured polling interval,
the iMC displays the link as normal because it can obtain the real status of the link
during the next polling.
•
If you do not configure the PE to send Traps to the iMC nor configure polling interval,
you can set polling for the PE or manually synchronize the PE to make the link displayed
as normal.
8.16 Why do only a maximum of two links between AS and PEs appear in the topology?
If too many links are displayed in a topology, the topology looks disorderly, and it is difficult
for you to view the links. Also, the system considers the link on the PE enabled with MPLS
as a connection to the core network. However, when the PE is a P, there may be many links
to other PEs. In this case, the system displays only two of the links to avoid influence on
monitoring of the network. If the two links displayed in the topology are not what you need,
you can select either of them, and modify the PE interface connected to the link as the PE
interface you want to view. In this way, you can view the link you want to view.
8.17 In a PE to CE VPN link information page, why are both left and right interfaces of the link
up but the status is unknown in topology?
The link status can't be reported when one of the devices cannot be arrived at by ping,
making the status of the link unknown.
8.18 I am unable to select sub-interfaces of a Cisco router during interface configuration for
service deployment.
Configure VLANs or enable MPLS for sub-interfaces of the Cisco router and synchronize
the device in the MVM.
8.19 When I add an SA to a VPN that is monitored, why doesn't the SA being monitored in the
VPN monitor automatically?
The system will not add a new SA to any monitor automatically, you must do that manually.
However, when you delete an SA, the system will remove it from all of the monitors.
8.20 Why can't SA be monitored after a reboot of a Cisco device?
Because the interface index is changed after reboot. To prevent this, execute the “snmp-server
ifindex persist” command in Cisco devices.
8.21 When I add a VPN or SA to monitor, why does it return “Interface traffic sampling test
failed” or doesn't display a correct status?
Check the GET operation on ifTable (ifXTable) through SNMP protocol.
•
•
Try to synchronize PEs in the VPN or SA first, make auto discovery, and then add it to
monitor again.
8.22 Why can't I see Cisco devices in the Select Device page when I import devices to MVM?
The MVM has no Cisco driver. Please contact the technical support dealer.
8.23 Why is the progress information in the Device Import Operation Result page sometimes
incorrect?
Only one client at a time can perform the device import operation. If two clients perform
the operation at almost the same time, they may still be able to perform the operation but
the progress information cannot show the device import progress correctly. However, the
device import operations still succeeds. In this case, you can view the operation results from
the device list.
8.24 When several spokes are deployed, why can't these links be discovered?
134 FAQ